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  • Implementing fog of war in opengl es 2.0 game

    - by joxnas
    Hi game development community, this is my first question here! ;) I'm developing a tactics/strategy real time android game and I've been wondering for some time what's the best way to implement an efficient and somewhat nice looking fog of war to incorporate in it. My experience with OpenGL or Android is not vast by any means, but I think it is sufficient for what I'm asking here. So far I have thought in some solutions: Draw white circles to a dark background, corresponding to the units visibility, then render to a texture, and then drawing a quad with that texture with blend mode set to multiply. Will this approach be efficient? Will it take too much memory? (I don't know how to render to texture and then use the texture. Is it too messy?) Have a grid object with a vertex shader which has an array of uniforms having the coordinates of all units, and another array which has their visibility range. The number of units will very probably never be bigger then 100. The vertex shader needs to test for each considered vertex, if there is some unit which can see it. In order to do this it, will have to loop the array with the coordinates and do some calculations based on distance. The efficiency of this is inversely proportional to the looks of it. A more dense grid will result in a more beautiful fog of war... but will require a greater amount of vertexes to be checked. Is it possible to find a nice compromise or is this a bad solution from the start? Which solution is the best? Are there better alternatives? Which ones? Thank you for your time.

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  • Your Day-by-Day Guide to Agile PLM at Oracle OpenWorld 2012

    - by Kerrie Foy
    This year’s Oracle OpenWorld conference is nearly here, and we’re all excited about what we have planned! With five days of activities and customer presenters from market leaders and top innovators like The Coca-Cola Company, Starbucks, JDSU, Facebook, GlobalFoundries, and more, this is an event you don't want to miss. I've compiled this day-by-day guide to help anyone keep track of all the “Product Lifecycle Management and Product Value Chain” sessions and activities at OpenWorld 2012, September 30 – October 4 in San Francisco, California.  Monday, October 1 There are great networking activities on Sunday September 30, but PLM specific sessions start after general conference keynotes on Monday, October 1 at 10:45 a.m. at the InterContinental Hotel in room Telegraph Hill. In fact, most of our sessions this year will be held in this room, which is still close to the conference keynotes in Moscone, but just far enough away to allow some focused networking and discussions.   This first session, 10:45 – 11:45 a.m. is a joint session with the Agile and AutoVue teams, entitled “Streamline PLM Design-to-Manufacturing Processes with AutoVue Visualization Soltuions” featuring presenters from Oracle as well as joint AutoVue and Agile PLM customer GlobalFoundries. In the following 12:15 – 1:15 p.m. slot, there are two sessions to choose from, so if you have a team of representatives attending OpenWorld, you may consider splitting up to catch both of these: a) Our General Session will be held in the InterContinental Hotel Ballroom C, which will cover our complete enterprise PLM strategy, product updates, and roadmaps. It’s our pleasure to feature a customer keynote presentation from Chris Bedi, CIO, and Rajeev Sethi, Director IT Business Engagement, of JDSU. b) A focused session on integrating PLM with Engineering and Supply Chain Systems will be held on the second floor of Moscone West (next to the InterContinental) in room 2022. Join to discover how these types of integrations help companies manage common and integrated design information across all MCAD, ECAD, and software components. After a lunch break and perhaps a visit to the Demogrounds in Moscone West, select from two product roadmap sessions in the next time slot (3:15 – 4:15 p.m.): an Agile 9.3.x session located in the InterContinental’s Ballroom C, and an Agile PLM for Process session located back in the InterContinental’s Telegraph Room. Both sessions will have strong content around each product line’s latest releases, vision, and customer examples. We are very pleased to feature Daniel Soosai of Facebook in the A9 session and Vinnie D’Agostino of The Coca-Cola Company in the PLM for Process session. Afterwards, hang in there for one last session of the day from 4:45 – 5:45 p.m.; it’s an insightful discussion on leveraging Agile PLM as the Foundation for Enterprise Quality Management, and it’s sure to be one of the best. In the Telegraph Room, this session will feature Oracle experts, partner co-presenter David Bartlett from CPG Solutions, and customer co-presenter Thomas Crowe, CIO of PL Developments. Hear their experience around implementing collaborative, integrated solutions to ensure effective knowledge transfer throughout an organization, and how to perform analysis in real time to resolve product quality issues swiftly and efficiently. On Monday evening there will be plenty of industry, product, and partner dinners, so take advantage of all the networking opportunities and catch some great tunes at the 5 day Oracle OpenWorld Music Festival! Tuesday, October 2 Tuesday starts early with a special PLM Networking Brunch, sponsored by several partners, from 8:30 a.m. – 10:30 a.m. at the B Restaurant that sits atop Yerba Buena Gardens. You’ll have the unique opportunity to meet with like-minded industry peers and a PLM partner to discuss a topic of your choosing while enjoying a delicious meal. Registration is required, so to inquire about attending this brunch, please email Terri.Hiskey-AT-oracle.com. After wrapping up your conversations over brunch, head over to the Marriott Marquis in the Nob Hill CD room for a chance to experience the Oracle Product Lifecycle Analytics solution in a Hands-On Lab, open from 10:15 a.m. – 12:45 p.m. Experts will be there to answer your questions. Back in the InterContinental Hotel’s Telegraph room, the session on “Ideation and Requirements Management: Capturing the Voice of the Customer” begins at 11:45 a.m. – 12:45 p.m. This may be the session for you if you’re struggling with challenges like too many repositories of customer needs, requests, and ideas; limited visibility into which ideas are being advanced by customers and field resources; or if you’re unable to leverage internal expertise to expose effort and potential risks. This session will discuss how Agile PLM can help you overcome ideation challenges to deliver the right products to their targeted markets and fulfill customer desires. Next, from 1:15 – 2:15 p.m. join us for a session on Managing Profitable Innovation with Oracle Product Lifecycle Analytics. If you missed the Hands-on Lab, have more questions, or simply want to be inspired by the product’s forward-thinking vision and capabilities, this is a great opportunity to meet the progressive-minded executives behind the application. After this session, it may be a good opportunity to swing by the Demogrounds in Moscone West and visit the Agile PLM demos at exhibit booths #81 for Agile PLM for Discrete Manufacturing, #70 for Agile PLM for Process, and #82 for AutoVue and Agile PLM Enterprise Visualization. Check out the related Supply Chain Management booths close by if you’re interested - here's the map. There’s always lots to see and do around the exhibit area. But don’t forget the last session of the day from 5:00 p.m. – 6:00 p.m. in Telegraph Hill on Managing Product Innovation and Compliance in Life Science Companies, a “must-see” if you’re in this industry. Launching innovative products quickly is already a high-stakes challenge, but companies in the life sciences industry face uniquely severe consequences when new products don’t perform or comply as required. In recent years, more and more regulations have become mandatory, and new ones, such as REACH, are currently going into effect for several companies. Customer presenters from pharmaceutical leader Eli Lilly will share how they’ve leveraged Agile PLM to deliver high-quality, innovative products in a fast-paced, heavily regulated market environment. Tuesday evening unwind at the Supply Chain Management Reception from 6:00 – 8:00 p.m. at the premier boutique Roe Nightclub and Lounge, which is located about three blocks down on Howard Street (on the other side of Moscone from the InterContinental Hotel). Registration is required. Click here for the details.   Wednesday, October 3 We have another full line-up on Wednesday, so be ready for an action-packed day. We start with a session at 10:15 – 11:15 a.m. in the Telegraph Room where we have a session on “PLM for Consumer Products: Building an Engine for Quality and Innovation” with featured presenters from Starbucks and partner Kalypso. This is a rare opportunity to learn directly from Starbucks how they instill quality and innovation throughout their organization, products, and processes, leveraging PLM disciplines with strong support from their partner.  If you’re not in the consumer products industry, we recommend attending another session at 10:15 – 11:15 a.m. in Moscone West room 3005: “Eco-Enterprise Innovation Awards and the Business Case for Sustainability” featuring Jeff Henley, Oracle’s Chairman of the Board and Jon Chorley, Chief Sustainability Officer. Oracle will honor select customers with Oracle’s Eco-Enterprise Innovation award, which recognizes customers and their respective partners who rely on Oracle products to support their green business practices to reduce their environmental impact while improving business efficiencies and reducing costs. The awards presentation is followed by a panel discussion with customers and Oracle executives, who describe how these award-winning organizations are embracing environmental initiatives as a central part of their business strategy and how information technology plays a pivotal role. Next at 11:45 a.m. – 12:45 p.m. in Telegraph Hill attend our session devoted to exploring Product Lifecycle Management’s role in Software Lifecycle Management. This is a thought leadership session with Oracle experts in the field on the importance of change management, and we’ll discuss how Oracle has for years leveraged Agile PLM to develop Agile PLM. If software lifecycle management doesn’t apply to your business or you’d rather engage in some lively one-on-one discussions, we also have a “Supply Chain Meet the Experts” session in Moscone West Room 2001A. Product experts, thought leaders and executives will be on hand to discuss your questions/topics, so come prepared. This session tends to fill up fast so try to get in early. At 1:15 – 2:15 p.m. join us back in Telegraph Hill for a session focused on leveraging the Agile Product Portfolio Management application as the Product Development Master Schedule to improve efficiencies, optimize resources, and gain visibility across projects enterprise-wide to improve portfolio profitability. Customer presenters from Broadcom will explain how they’ve leveraged the product to enable a master schedule with enterprise-level, phase-gate program and project collaboration and resource optimization. Again in Telegraph Hill from 3:30 – 4:30 p.m. we have an interesting session with leading semiconductor customer LSI and partner Kalypso on how LSI leveraged Agile PLM to advance from homegrown applications to complete Product Value Chain Management. That type of transition can be challenging, and LSI details how they were able to achieve their goals and the value they gained along the journey – a fascinating account for any company interested in leveraging best practices to innovate their business processes and even end products. Lastly, we’ll wrap up in Telegraph Hill from 5:00 – 6:00 p.m. with a session on “Ensuring New Product Success by Achieving Excellence in New Product Introduction.” This is a cross-industry session, guaranteed to deliver insight in the often elusive practice of creating winning products, and we’re very excited about. According to IDC Manufacturing Insights analyst Joe Barkai, “Product Failures are not necessarily a result of bad ideas…they are a result of suboptimal decisions.” We’ll show you how to wire your business processes to enhance decision-making and maximize product potential. Now, quickly hit your hotel room to freshen up and then catch one of the many complimentary shuttles to the much-anticipated Oracle Customer Appreciation Event on Treasure Island. We have a very exciting show planned – check out what’s in store here. Thursday, October 4 PLM has a light schedule on Thursday this year with just one session, but this again is one of our best sessions on managing the Product Value Chain: at 11:15 a.m – 12:15 p.m.in Telegraph Hill, it’s a customer and partner driven session with Sonoco Products and Deloitte telling their story about how to achieve integrated change control by interfacing Agile PLM with Oracle E-Business Suite. Sonoco Products, a global manufacturer of consumer and industrial packaging materials, with its systems integrator, Deloitte, is doing this by implementing prebuilt integration (Oracle Design-to-Release Integration Pack for Agile Product Lifecycle Management for Process and Oracle Process) to integrate Agile with Oracle Product Hub/Oracle Product Information Management and Oracle E-Business Suite. This session presents a case study of how Sonoco is leveraging this solution to improve data quality and build a framework for stronger master data governance. Even though that ends our PLM line-up at OpenWorld, there will still be many sessions and activities at the conference, so visit the Oracle OpenWorld website to review agendas and build your schedule. And of course, download and bring this guide and the latest version of the Agile PLM Focus-On Document (available soon!). San Francisco is a wonderful city to explore, and we’re glad you’re considering joining the Agile PLM team at Oracle OpenWorld!  I hope to see you there! Follow me before the conference and on site for real-time updates about #OOW12 on Twitter @Kerrie_Foy or @AgilePLM.

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  • CodePlex Daily Summary for Friday, July 19, 2013

    CodePlex Daily Summary for Friday, July 19, 2013Popular ReleasesuComponents: uComponents v5.5.0: Following on from our 101355 release, we bring you... v5.5.0! Resolved issues The following issues have been resolved in 5.5.0: 14634 14848 DataType Grid 14840 14842 14845 UpgradingThe best way to upgrade uComponents is to re-install via Umbraco's back-office package installer, (either from the package repository or a local package upload). Do not uninstall an existing uComponents package, as this may lead to data loss! Umbraco compatibilityThis release is compatible with Umbraco 4...51Degrees.mobi - Mobile Device Detection and Redirection: 2.1.19.4: One Click Install from NuGet This release introduces the 51Degrees.mobi IIS Vary Header Fix. When Compression and Caching is used in IIS, the Vary header is overwritten, making intelligent caching with dynamic content impossible. Find out more about installing the Vary Header fix. Changes to Version 2.1.19.4Handlers now have a ‘Count’ property. This is an integer value that shows how many devices in the dataset that use that handler. Provider.cs -> GetDeviceInfoByID to address a problem w...SalarDbCodeGenerator: SalarDbCodeGenerator v2.1.2013.0719: Version 2.1.2013.0719 2013/7/19 Pattern Changes: * DapperContext pattern is added. * All patterns are updated to work with one-to-one relations. Changes: * One-to-one relation is supported. * Minor bug fixes.Scryber PDF Generation: Scryber.Installer.v0.8.3: This one has tables! A significant update to the scryber library, with the inclusion of tables. There is no column span, or row span, and nested tables are not fully supported. But - they overflow nicely and are well styled. And they can be data bound. Other updates The Link element has inner components directly as a child, rather than in a Content element. The existing files will still continue to work, but are invalid wrt the schema. Databinding is now supported at the document level, r...Player Framework by Microsoft: Player Framework for Windows and WP (v1.3 beta 2): Includes all changes in v1.3 beta 1 Additional support for Windows 8.1 Preview New API (JS): addTextTrack New API (JS): msKeys New API (JS): msPlayToPreferredSourceUri New API (JS): msSetMediaKeys New API (JS): onmsneedkey New API (Xaml): SetMediaStreamSource method New API (Xaml): Stretch property New API (Xaml): StretchChanged event New API (Xaml): AreTransportControlsEnabled property New API (Xaml): IsFullWindow property New API (Xaml): PlayToPreferredSourceUri proper...Outlook 2013 Add-In: Multiple Calendars: As per popular request, this new version includes: - Support for multiple calendars. This can be enabled in the configuration by choosing which ones to show/hide appointments from. In some cases (public folders) it may time out and crash, and so far it only supports "My Calendars", so not shared ones yet. Also they're currently shown in the same font/color so there are no confusions with color categories, but please drop me a line on any suggestions you'd like to see implemented. - Added fri...GoAgent GUI: GoAgent GUI 1.2.0 ???: *???????,??????????????,?????????????? ????????* ????????(Beta) Beta????:https://goagent.codeplex.com/workitem/list/basic ??????:uygw@outlook.com ????:https://goagent.codeplex.com/documentation ?????????????????。Circuit Diagram: Circuit Diagram 2.0 Beta 2: New in this release: Show grid in editor Cut/copy/paste support Bug fixesAscend 3D: Ascend (2013-07-17): Ascend 2.1 Animation bugfixes and speed/robustness improvements Added compatibility for multiple top-level bones on armatures Ascend Blender Exporter 2.1 Removed need to create parent-child relationship between armature and skinning mesh Added support for exporting multiple top-level bones on armatures AscendViewer 1.0.4 Updated to use latest version of Ascend libraryCommunity TFS Build Extensions: July 2013: The July 2013 release contains VS2010 Activities(target .NET 4.0) VS2012 Activities (target .NET 4.5) VS2013 Activities (target .NET 4.5.1) Community TFS Build Manager VS2012 The Community TFS Build Manager can also be found in the Visual Studio Gallery here where updates will first become available. A version supporting VS2010 is also available in the Gallery here.smoketestgit1: new release: Wiki Markup Guide bold italics underline Heading 1 Heading 2 Bullet List Bullet List 2 Number List Number List 2 http://www.example.com Do not apply formattingsmoketesthg: new release: Wiki Markup Guide bold italics underline Heading 1 Heading 2 Bullet List Bullet List 2 Number List Number List 2 http://www.example.com Do not apply formattingsmoketesttfs: new release: Wiki Markup Guide bold italics underline Heading 1 Heading 2 Bullet List Bullet List 2 Number List Number List 2 http://www.example.com Do not apply formattingdatajs - JavaScript Library for data-centric web applications: datajs version 1.1.1: datajs is a cross-browser and UI agnostic JavaScript library that enables data-centric web applications with the following features: OData client that enables CRUD operations including batching and metadata support using both ATOM and JSON payloads. Single store abstraction that provides a common API on top of HTML5 local storage technologies. Data cache component that allows reading data ranges from a collection and storing them locally to reduce the number of network requests. Changes ...Orchard Project: Orchard 1.7 RC: Planning releasedTerminals: Version 3.1 - Release: Changes since version 3.0:15992 Unified usage of icons in user interface Added context menu in Organize favorites grid Fixed:34219 34210 34223 33981 34209 Install notes:No changes in database (use database from release 3.0) No upgrade of configuration, passwords, credentials or favorites See also upgrade notes for release 3.0Media Companion: Media Companion MC3.573b: XBMC Link - Let MC update your XBMC Library Fixes in place, Enjoy the XBMC Link function Well, Phil's been busy in the background, and come up with a Great new feature for Media Companion. Currently only implemented for movies. Once we're happy that's working with no issues, we'll extend the functionality to include TV shows. All the help for this is build into the application. Go to General Preferences - XBMC Link for details. Help us make it better* Currently only tested on local and ...Wsus Package Publisher: Release v1.2.1307.15: Fix a bug where WPP crash if 'ShowPendingUpdates' is start with wrong credentials. Fix a bug where WPP crash if ArrivalDateAfter and ArrivalDateBefore is equal in the ComputerView. Add a filter in the ComputerView. (Thanks to NorbertFe for this feature request) Add an option, when right-clicking on a computer, you can ask for display the current logon user of the remote computer. Add an option in settings to choose if WPP ping remote computers using IPv4, IPv6 or IPv6 and, if fail, IP...Lab Of Things: vBeta1: Initial release of LoTVidCoder: 1.4.23: New in 1.4.23 Added French translation. Fixed non-x264 video encoders not sticking in video tab. New in 1.4 Updated HandBrake core to 0.9.9 Blu-ray subtitle (PGS) support Additional framerates: 30, 50, 59.94, 60 Additional sample rates: 8, 11.025, 12 and 16 kHz Additional higher bitrates for audio Same as Source Constant Framerate 24-bit FLAC encoding Added Windows Phone 8 and Apple TV 3 presets Introduced process isolation for encodes. Now if HandBrake crashes, VidCoder will ...New Projects[C#]A Complete MySQL Manager Project: An open-source MySQL database manager oriented to multi-threading environments, supporting to create an entire database from scratch and edit it.bCal Javascript Calendar Generator: Using this simple javascript library, you can create simple navigable calendars in your website with just one line of user code.Better Network: Tools to delete network profile and network lists in Windows 8.C# Intellisense for Notepad++: 'CS-Script Intellisense' is a real C# intellisense solution based on CS-Script and ICSharpCode.NRefactory/Mono.Cecil.DARF: Dynamic Application Runtime Framework: A set of tools and libraries which help software developers create fully distributed and component-based applications. FeiXinV5: Just TestFollower Catcher: Game made for the 2012 Windows 8 Megathon. Second place in Madrid's local competition.MeeOS .NET: El primer sistema operativo GNU GPL en español.Music Vault: Music Vault is program to store your favorite music in one place, you can in any time move all your music library by moving only one file.MVC uTorrent: This is an ASP.NET MVC uTorrent front end, that utilises the uTorrent API. The main features: - Single page application - Can be hosted in IISMyTaskManager: This project Related to distribute the task to log in users OO2RDF: OO2RDF is a framework for data triplification. P(y)rotein Subcellular Location Image Database: A library that allows communication with an OMERO database, an open-source software for storage and manipulation of biological images.PE Toolbox: PE Toolbox ? ????? ?? ???????????, ????? ??????? ??? ??????????? ?? ?????. ???? ????? ??????????? ???????: - PE IFE (Importing from Excel) PeGscan: *PeGscan*ScriptZilla: ScriptZilla is an Free Editor for Windows with more Than 23 Languages.Sharepoint : Reconciliate SSRS Reports and Datasets with datasources Powershell: Powershell to link datasources to SSRS reports and datasetsSync-Moped: The idea behind the "Sync-Moped" is to synchronize two directories with backup functionality.System.Time: System.Time provides a type for .NET that allows the managing of a time in System.String, System.DateTime and System.TimeSpan form at the same time.Text Analytics: Project summary will be added later.Tibia Universal MC .NET: This tool was written as an attempt to port the [url:http://code.google.com/p/xenomc/] to the .NET Framework.VRFramework: VR Framework is a system for creating a virtual reality games using your PC, and Android smart phone, and Unity 3D.

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  • Webfarm and IIS configuration tips/tricks

    - by steve schofield
    I was recently talking with some good friends about tips for performance and what an IIS Administrator could do on the server side.  I also see this question from time to time in the forums @ http://forums.iis.net.    Of course, you should test individual settings in a controlled environment while performing load testing before just implementing on your production farm.  IIS Compression enabled (both static and dynamic if possible, set it to 9)  If you are running IIS 6, check this article out by Scott Forsyth. Run FRT for long running pages (Failed Request Tracing) Sql Connection pooling in code Look at using PAL with performance counters ( http://blogs.iis.net/ganekar/archive/2009/08/12/pal-performance-analyzer-with-iis.aspx )  Look at load testing using visual studio load testing tools Log parser finding long running pages.  Here is a couple examples Look at CPU, Memory and disk counters.  Make sure the server has enough resources. Same machineKey account across all same nodes Localize content vs. using UNC based content on a single server (My UNC tag with great posts) Content expiration ETAG’s the same across all web-farms Disable Scalable Networking Pack Use YSlow or Developer tools in Chrome to help measure the client experience improvements. Additionally, some basic counters in for measuring applications is: I would recommend checking out the Chapter 17 in IIS 7 Resource kit. it was one of the chapters I authored. :) Concurrent Connections,  Request Per / Sec, Request Queued.  I strongly suggest testing one change at a time to see how it helps improve your performance.  Hopefully this post provides a few options to review in your environment.   Cheers, Steve SchofieldMicrosoft MVP - IIS

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  • Lightning talk: Coderetreat

    - by Michael Williamson
    In the spirit of trying to encourage more deliberate practice amongst coders in Red Gate, Lauri Pesonen had the idea of running a coderetreat in Red Gate. Lauri and I ran the first one a few weeks ago: given that neither of us hadn’t even been to a coderetreat before, let alone run one, I think it turned out quite well. The participants gave positive feedback, saying that they enjoyed the day, wrote some thought-provoking code and would do it again. Sam Blackburn was one of the attendees, and gave a lightning talk to the other developers in one of our regular lightning talk sessions: In case you can’t watch the video, I’ve transcribed the talk below, although I’d recommend watching the video if you can — I didn’t have much time to do the transcribing! So, what is a coderetreat? So it’s not just something in Red Gate, there’s a website and everything, although it’s not a very big website. It calls itself a community network. The basic ideas behind coderetreat are: you’ve got one day, and you split it into one hour sections. You spend three quarters of that coding, and do a little retrospective at the end. You’re supposed to start fresh each, we were told to delete our code after every session. We were in pairs, swapping after each session, and we did the same task every time. In fact, Conway’s Game of Life is the only task mentioned anywhere that I find for coderetreat. So I don’t know what we’ll do next time, or if we’re meant to do the same thing again. There are some guiding principles which felt to us like restrictions, that you have to code in crazy ways to encourage better code. Final thing is that it’s supposed to be free for outsiders to join. It’s meant to be a kind of networking thing, where you link up with people from other companies. We had a pilot day with Michael and Lauri. Since it was basically the first time any of us had done anything like this, everybody was from Red Gate. We didn’t chat to anybody else for the initial one. The task was Conway’s Game of Life, which most of you have probably heard of it, all but one of us knew about it when did the coderetreat. I won’t got into the details of what it is, but it felt like the right size of task, basically one or two groups actually produced something working by the end of the day, and of course that doesn’t mean it’s necessarily a day’s work to produce that because we were starting again every hour. The task really drives you more than trying to create good code, I found. It was really tempting to try and get it working rather than stick to the rules. But it’s really good to stop and try again because there are so many what-ifs when you’ve finished writing something, “what if I’d done it this way?”. You can answer all those questions at a coderetreat because it’s not about getting a product out the door, it’s about learning and playing with ideas. So we had all these different practices we were trying. I’ll try and go through most of these. Single responsibility is this idea that everything should do just one thing. It was the very first session, we were still trying to figure out how do you go about the Game of Life? So by the end of forty-five minutes hadn’t produced very much for that first session. We were still thinking, “Do we start with a board, how do we represent all these squares? It can be infinitely big, help, this is getting really difficult!”. So, most of us didn’t really get anywhere on the first one. Although it was interesting that some people started with the board, one group started with the FateDecider class that decides whether things live or die. A sort of god class, but in a good way. They managed to implement all of the rules without even defining how the squares were arranged or anything like that. Another thing we tried was TDD (test-driven development). I’m sure most of you know what TDD is: Watch a test, watch it fail for the right reason Write code to pass the test, watch it pass Refactor, check the test still passes Repeat! It basically worked, we were able to produce code, but we often found the tests defined the direction that code went, which is obviously the idea of TDD. But you tend to find that by the time you’ve even written your first assertion, which is supposed to be the very first thing you write, because you write your tests backwards from the assertions back to the initial conditions, you’ve already constrained the logic of the code in some way by the time you’ve done that. You then get to this situation of, “Well, we actually want to go in a slightly different direction. Can we do this?”. Can we write tests that don’t constrain the architecture? Wrapping up all primitives: it’s kind of turtles all the way down. We had a Size, which has a Width and Height, which both derive from Dimension. You’ve got pages of code before you’ve even done anything. No getters and setters (use tell don’t ask instead): mocks and stubs for tests are required if you want to assert that your results are what you think they should be. You can’t just check the internal state of the code. And people found that really challenging and it made them think in a different way which I think is really good. Not having mutable state: that was kind of confusing because we weren’t quite sure what fitted within that rule and what didn’t, and I think we were trying too hard to follow the rule rather than the guideline. No if-statements: supposed to use polymorphism instead, but polymorphism still requires a factory with conditional behaviour. We did something really crazy to get around this: public T If(bool condition, Func<T> left, Func<T> right) { var dict = new Dictionary<bool, Func<T>> {{true, left}, {false, right}}; return dict[condition].Invoke(); } That is not really polymorphism, is it? For-loops: you can always replace a for-loop with recursion, but it doesn’t tend to make it any more readable unless it’s the kind of task that really lends itself to that. So it was interesting, it was good practice, but it wouldn’t make it easier it’s the kind of tree-structure algorithm where that would help. Having a limit on the number of levels of indentation: again, I think it does produce very nice, clean code, but it wasn’t actually a challenge because you just extract methods. That’s quite a useful thing because you can apply that to real code and say, “Okay, should this method really be going crazy like this?” No talking: we hated that. It’s like there’s two of you at a computer, and one of you is doing the typing, what does the other guy do if they’re not allowed to talk. The answer is TDD ping-pong – one person writes the tests, and then the other person writes the code to pass the test. And that creates communication without actually having to have discussion about things which is kind of cool. No code comments: just makes no difference to anything. It’s a forty-five minute exercise, so what are you going to put comments in code for? Finally, this is my fault. I discovered an entertaining way of doing the calculation that was kind of cool (using convolutions over the state of the board). Unfortunately, it turns out to be really hard to implement in C#, so didn’t even manage to work out how to do that convolution in C#. It’s trivial in some high-level languages, but you need something matrix-orientated for it to really work. That’s most of it, really. The thoughts that people went away with: we put down our answers to questions like “What have you learnt?” and “What surprised you?”, “How are you going to do things differently?”, and most people said redoing the problem is really, really good for understanding it properly. People hate having a massive legacy codebase that they can’t change, so being able to attack something three different ways in an environment where the end-product isn’t important: that’s something people really enjoyed. Pair-programming: also people said that they wanted to do more of that, especially with TDD ping-pong, where you write the test and somebody else writes the code. Various people thought different things about immutables, but most people thought they were good, they promote functional programming. And TDD people found really hard. “Tell, don’t ask” people found really, really hard and really, really, really hard to do well. And the recursion just made things trickier to debug. But most people agreed that coderetreats are really cool, and we should do more of them.

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  • Optimize Images Using the ASP.NET Sprite and Image Optimization Framework

    The HTML markup of a web page includes the page's textual content, semantic and styling information, and, typically, several references to external resources. External resources are content that is part of web page, but are separate from the web page's markup - things like images, style sheets, script files, Flash videos, and so on. When a browser requests a web page it starts by downloading its HTML. Next, it scans the downloaded HTML for external resources and starts downloading those. A page with many external resources usually takes longer to completely load than a page with fewer external resources because there is an overhead associated with downloading each external resource. For starters, each external resource requires the browser to make an HTTP request to retrieve the resource. What's more, browsers have a limit as to how many HTTP requests they will make in parallel. For these reasons, a common technique for improving a page's load time is to consolidate external resources in a way to reduce the number of HTTP requests that must be made by the browser to load the page in its entirety. This article examines the free and open-source ASP.NET Sprite and Image Optimization Framework, which is a project developed by Microsoft for improving a web page's load time by consolidating images into a sprite or by using inline, base-64 encoded images. In a nutshell, this framework makes it easy to implement practices that will improve the load time for a web page that displays several images. Read on to learn more! Read More >

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  • Project Euler 51: Ruby

    - by Ben Griswold
    In my attempt to learn Ruby out in the open, here’s my solution for Project Euler Problem 51.  I know I started back up with Python this week, but I have three more Ruby solutions in the hopper and I wanted to share. For the record, Project Euler 51 was the second hardest Euler problem for me thus far. Yeah. As always, any feedback is welcome. # Euler 51 # http://projecteuler.net/index.php?section=problems&id=51 # By replacing the 1st digit of *3, it turns out that six # of the nine possible values: 13, 23, 43, 53, 73, and 83, # are all prime. # # By replacing the 3rd and 4th digits of 56**3 with the # same digit, this 5-digit number is the first example # having seven primes among the ten generated numbers, # yielding the family: 56003, 56113, 56333, 56443, # 56663, 56773, and 56993. Consequently 56003, being the # first member of this family, is the smallest prime with # this property. # # Find the smallest prime which, by replacing part of the # number (not necessarily adjacent digits) with the same # digit, is part of an eight prime value family. timer_start = Time.now require 'mathn' def eight_prime_family(prime) 0.upto(9) do |repeating_number| # Assume mask of 3 or more repeating numbers if prime.count(repeating_number.to_s) >= 3 ctr = 1 (repeating_number + 1).upto(9) do |replacement_number| family_candidate = prime.gsub(repeating_number.to_s, replacement_number.to_s) ctr += 1 if (family_candidate.to_i).prime? end return true if ctr >= 8 end end false end # Wanted to loop through primes using Prime.each # but it took too long to get to the starting value. n = 9999 while n += 2 next if !n.prime? break if eight_prime_family(n.to_s) end puts n puts "Elapsed Time: #{(Time.now - timer_start)*1000} milliseconds"

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  • Post build events using ROBOCOPY instead of XCOPY

    - by Vizioz Limited
    I don't know about you, but for a long time I have used XCOPY statements in my Visual Studio post build events to copy my Umbraco files from the project folders to the local version of the website associated with the project.For the last few months we have been building a website framework for a client, who has subsequently sold the site to 5 clients, each with a different skin and some variations in their functional requirements.So, we now have a single source solutions, that builds and copies the site files into 5 seperate local websites, which enables us to easily test them all, what we had found was that this process was starting to slow up our build process and was reaching 30-45 seconds on a high spec Quad core machine (and slower on others)Today I asked Colin to create seperate Solution Configurations within Visual Studio so that while we were developing we could target a single site, and when we wanted to test all sites, we could target "ALL" and the Post Build script would then copy the files to all sites.This worked well, and with a couple of other optimisations, our build was now taking about 10 seconds for a single site.Then Colin came across ROBOCOPY and suggested that maybe this would be a suitable alternative to XCOPY, well, I had not heard of it.. (shock horror some of you shout, some I am sure like me, are also wondering what it is!)ROBOCOPY is new in Windows Vista & Windows 7 (you can also download it for XP & Windows 2003) and it has a lot of additional features, the two that were most interesting to us were:/MIR = Mirror a folder tree/XD = Exclude Directories/NP = No Progress (i.e. it does not give you a chart of it's results, which just fills up your Output window!)So, we set about implementing ROBOCOPY, we decided to use the /MIR switch on all folders that we knew were always stored in our project folders:- images- css- masterpages- xsltAnd for other files we just used the straight robocopy functionality.We also decided to exclude all the .SVN directories using the /XD switch and finally we added the /NP switch as mentioned above.The beauty of all of this, is the /MIR functionality, as this means that only files that have changed will be copied across which greatly speeds up the process, especially on the images folders which previously copied across on every build, now, if we add a new image to the project it will be copied across automatically and then never again, unless we change it of course!The build time now for all sites is approximately 4 seconds and for a single site, 2 seconds, I would highly recommend the time to make the same optimisations to your build processes if you have not done so already.

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  • CodePlex Daily Summary for Tuesday, May 04, 2010

    CodePlex Daily Summary for Tuesday, May 04, 2010New ProjectsAlbum photo de club - Club's Photos Album: Un album photos permettant d'afficher les photos et le détails des membres d'un club - Photo album allowing to view photos and details of the membersBlog.Net Blogging Components: Blog.Net server-side blogging components to add a blog to your current ASP.NET website.FilePirate - Really Advanced LAN File Sharing: Really Advanced, yet super easy, LAN Party File Sharing written using the .Net Framework and C#. Ditch DirectConnect or Windows File Sharing at y...Fisiogest: Programa de gestión de una clínica de fisioterapiaIdeaNMR: An online repository of NMR experiment automated setups with wiki type documentation library and client program providing automated experiment setu...Introducción a Unity: Código de ejemplo del uso de Unity en diferentes situaciones. - Registro de clases, instancias e interfaces. - Resolución de clases, instancias e...Iowa City .NET Developers: This is the project site for the Iowa City .NET Developers.isanywhere: A command line utility to see if one or more files (given a filemask) are to be found anywhere inside a specific directory, or elsewhere inside one...LczCode: lczLog4net udp logs viewer: UdpLogViewer is a .NET 4 WinForm application that receives udp messages from log4net and shows them in a grid. It is possible to filter them or sh...New Silverlight XPS Viewer (In Sl4): New Silverlight XPS viewer Novuz: Novuz is a usenet indexer and reporter. It's developed both in Visual Studio 2010 and MonoDevelop, one of the key features of Novuz is that it sho...PodSnatch: PodSnatch is a podcast client that makes it easy to download rss-enclosures. Multiple simultaneous downloads enabled by threading. GUI is built wi...Robot Shootans: A simple top down shooter game where the player has to kill robots running at them. Written in C++ using SDL with various extentionsSharePoint Rsync List: This program will syncronize files and directories from and unc/local/sharepoint to a SharePoint 2007 or 2010 server. Supports of to 2GB files and ...SignInAndStorageLib: SignInAndStorageLib makes properly handling both sign in and storage issues in Xbox 360 XBLIG XNA games simple. Written in C#, SignInAndStorageLib...SilverBBS: ANSI-style bbs experience delivered via Silverlight. Silverlight flip-down counter: A Silverlight widget that enables you to count down towards a preconfigured event on a configured date.SmartieFly: Smartie Fly is a quiz software program written in C# using Silverlight. It uses SQL Server as a backend database. VS2010 Framework Driven Testing: CodedUITests generate a lot of code, and they break on every change to the object under test. Goals: - write new tests manually, but with as litt...WMediaCatalog: Advanced multimedia cataloguer. Allows users to keep their musical collections well organized and provides flexible methods of filtering, serarching WPathFinder: A simple path management application for windows. Functionality includes: - Add/remove/change path entries easily. - Search for all instances of a...Yasminoku: Yasminoku is an open source "Sudoku" alike game totally written in DHTML (JavaScript, CSS and HTML) that uses mouse. Includes sudoku solver. This c...New ReleasesAlbum photo de club - Club's Photos Album: App - version 0.4: version 0.4 - Critère d'affichage des membres : nom, année, ville - Navigation entre les images d'un membres - Navigation entre les membres - Affi...Album photo de club - Club's Photos Album: Code - Version 0.4: Code source de la version 0.4BigDecimal: Concept Evaluation Release 2 (BigDecimals): This in the second updates release of BigDecimals. It has the four simple arithmetic rules Addition, Subtract, Multiple and Division.CBM-Command: 2010-05-03: New features in this build Keyboard Shortcuts Panel Swapping Panel Toggling On/Off Toggling 40/80 Columns Confirming Quit Confirming GO64...Directory Linker: Directory Linker 2: This release introduces Undo Support and Symbolic File Link support. More details can be found here http://www.humblecoder.co.uk/?p=141DotNetNuke Skins Pack: DotNetNuke 80 Skins Pack: This released is the first for DNN 4 & 5 with Skin Token Design (legacy skin support on DNN 4 & 5)DTLoggedExec: 1.0.0.0: -FIRST NON-BETA RELEASE! :) -Code cleaned up -Added SetPackageInfo method to ILogProvider interface to make easier future improvements -Deprecated...GenerateTypedBamApi: Version 2.1: Changes in this release: NEW: Support for Office Data Connectivity Components 2010 NEW: Include both x86 and x64 EXE's due to lack of support in ...HobbyBrew Mobile: Beta 1 Refresh: Risolto bug circa il salvataggio di ricette (veniva impostato scorrettamente che si trattava di Mash Design "infusione" se ri-aperte con hobbyBrew)...Home Access Plus+: v4.2: Version 4.2 Added Overrides into the Booking System Some slight CSS changes to the Help Desk Updated the config tool to work anywhere on the LA...Hubble.Net - Open source full-text search database: V0.8.3.0: V0.8.3.0 Show server version in about dialog. Fix a bug of deleting querycache files. V0.8.2.9 Change sql client to support userid and password Ch...IdeaNMR: IdeaNMR Client: This is a client program with an example package.kdar: KDAR 0.0.21: KDAR - Kernel Debugger Anti Rootkit - signature's bases updated - usability increased - NDIS6 MINIPORT_BLOCK checks addedLightWeight Application Server: 0.4.1: One step further to beta - yet another release for c# developers audience only. Changes: 1. API - added a LWAS.Infrastructure.Storage service to d...Log4net udp logs viewer: UdpLogViewer 1.0: First release of UdpLogViewer, version 1.0.MDownloader: MDownloader-0.15.11.58370: Fixed minor bugs.Metabolite Enterprise Libraries for EPiServer CMS using Page Type Builder: Metabolite Enterprise Libraries 1.2 Beta 2: This is the beta release of the Metabolite Enterprise Libraries 1.2 Beta 2 for use with EPiServer 6 and Page Type Builder 1.2 Beta 2.Microsoft Silverlight Analytics Framework: Version 1.4.3 Installer: Pre-release Installer for Visual Studio 2010 and Expression Blend 4 RCSupports both Silverlight 3 and Silverlight 4 Release NotesFixed null referen...MultipointTUIO: Multipoint SDK v1.5 Release: Rebuilt against v1.5 of the Microsoft Multipoint SDK, this mean Windows 7 support (and 64bit I think!)My Notepad: My Notepad: This is the status of My Notepad until now. This is many built in features but has to undergo a lot of modifications. The release does not include ...New Silverlight XPS Viewer (In Sl4): Silverlight XPS Viewer: Background: During my development last week I was working on a Silverlight based XPS viewer. During this viewer we came to a situation in which the...NSIS Autorun: NSIS Autorun 0.1.6: This release includes source code, executable binary, files and example materials.Open Diagram: Open Diagram 5.0 Beta May 2010: This is the first beta release of Open Diagram 5.0. Select Crainiate.Diagramming.Examples.Forms as the startup project to view the current Class D...Pocket Wiki: PC Wiki (zip) 1.0.1: PC Version of Pocket Wiki. Unzip and run. Requires .NET Framework 2.0Pocket Wiki: Pocket Wiki 1.0.1 (cab): Pocket Wiki cab installation - requires DotNet 2.0 or greater. Default wiki language is "slash" - a syntax I created that is easy to type on keyboa...Pocket Wiki: Pocket Wiki.sbp: Pocket Wiki Source Code (version .72) - Basic4PPCPublish to Photo Frame: 1.0.2.0: This version adds: add borders to portrait images, for photo frames that crop them incorrectly.Reflection Studio: Reflection Studio 0.1: First download release, it contains a lot of things but allways in beta version. Hope you will like the preview.SharePoint 2010 PowerShell Scripts & Utilities: PSSP2010 Utils 0.1: This is the initial release with SPInstallUtils.psm1 module. This module includes Get-SPPrerequisites and New-SPInstallPackage cmdlets. Refer to th...Silverlight 4.0 Popup Menu: Context Menu for Silverlight 4.0 v1.1 Beta: Multilevel menus are now supported. Added design time support for the PopupMenuItem elements. The project is now under Subversion.Silverlight flip-down counter: FlipDownCounter v1.0: The final release of the Silverlight flip-down counter. Please refer to the included readme file for information on how to use the counter.Stratosphere: Stratosphere 1.0.0.1: Moved scalable block file system implementation to Stratosphere.FileSystemSystem.AddIn Pipeline Builder: Pipeline Builder 1.2: Lots of improvements from the CTP, version 1.0: - Added dialogue for possible overwrite if the file has changed: possibility of ignoring changes (p...ThoughtWorks Cruise Notification Interceptor: 1.0.1: Fixed an issue with the regex that parses the incoming notification. This issue would send failure messages when the build was "fixed".ThreadSafeControls: ThreadSafeControls v0.1: This is the first binary release of the ThreadSafeControls library. I'll call it a pre-alpha release.TracerX Logger/Viewer for .NET: 4.0: View this CodeProject article for documentation on how to use the latest version of the Logger. About the DownloadsVersion: 4.0.1005.1163 Changese...VCC: Latest build, v2.1.30503.0: Automatic drop of latest buildVisual Studio DSite: Lottery Game (Visual C++ 2008): An advanced lottery game made in visual c 2008.VivoSocial: VivoSocial 7.1.3: Version 7.1.3 of VivoSocial has been released. If you experienced any issues with the previous version, please update your modules to the 7.1.3 rel...Xrns2XMod: Xrns2XMod 1.0: Features added Conversion of all possible convertible features between Renoise and MOD / XM. FlacBox lib updated (thanks to Yuri) NAudio lib in...Most Popular ProjectsRawrWBFS ManagerAJAX Control ToolkitMicrosoft SQL Server Product Samples: Databasepatterns & practices – Enterprise LibrarySilverlight ToolkitiTuner - The iTunes CompanionWindows Presentation Foundation (WPF)ASP.NETDotNetNuke® Community EditionMost Active ProjectsIonics Isapi Rewrite Filterpatterns & practices – Enterprise LibraryRawrHydroServer - CUAHSI Hydrologic Information System ServerAJAX Control Frameworkpatterns & practices: Azure Security GuidanceNB_Store - Free DotNetNuke Ecommerce Catalog ModuleBlogEngine.NETTinyProjectDambach Linear Algebra Framework

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  • Node remains in commissioning status

    - by Vinitha
    I have been trying to set up ubuntu cloud 12.04. I'm kind of new to MAAS and ubuntu. Here is what I followed. Have installed MAAS server using the steps provided in https://wiki.ubuntu.com/ServerTeam/MAAS For the node, I installed the Ubuntu 12.04 Server Image on a USB Stick. Then restarted the node and opted to enlist the node via boot media, with PXE. once the process was done, the node was powered off as expected. I manually powered on the node, as my node is not PXE enabled. Result - No node was visible on MAAS UI Since step 2 didn't work, I added the node via maas-cli. command. After the execution of this command I got the node reflected on to my MAAS UI. But the status continues to be in "Commissioning" for a long time. Then I executed "maas-cli maas nodes check-commissioning " and i got "Unrecognised signature: POST check_commissioning". I'm not sure where is the error. Could some one please help me solve this issue. I checked the following log file but found no error related to commissioning (pserv.log / maas.log / celery.log/celery-region.log). I found this entry in my auth.log "Nov 16 18:20:34 ubuntuCloud sshd[4222]: Did not receive identification string from xxx.xx.xx.x" not sure if it indicates anything as the ip that is mentioned is not of the node nor of the MAAS server. I also verified the time on the server and node using date cmd - (at one instance the times are : Server: Fri Nov 16 18:15:51 IST 2012 and Node Fri Nov 16 18:15:43 IST 2012). Not sure if 'date' the right cmd to set the time. I have also check maas_local_settings.py for the MAAS url. I'm not sure what are the logs that need to be verified. Is there any log that can be checked on the Node. Thanks Vinitha

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  • Project Euler 53: Ruby

    - by Ben Griswold
    In my attempt to learn Ruby out in the open, here’s my solution for Project Euler Problem 53.  I first attempted to solve this problem using the Ruby combinations libraries. That didn’t work out so well. With a second look at the problem, the provided formula ended up being just the thing to solve the problem effectively. As always, any feedback is welcome. # Euler 53 # http://projecteuler.net/index.php?section=problems&id=53 # There are exactly ten ways of selecting three from five, # 12345: 123, 124, 125, 134, 135, 145, 234, 235, 245, # and 345 # In combinatorics, we use the notation, 5C3 = 10. # In general, # # nCr = n! / r!(n-r)!,where r <= n, # n! = n(n1)...321, and 0! = 1. # # It is not until n = 23, that a value exceeds # one-million: 23C10 = 1144066. # In general: nCr # How many, not necessarily distinct, values of nCr, # for 1 <= n <= 100, are greater than one-million timer_start = Time.now # There's no factorial method in Ruby, I guess. class Integer # http://rosettacode.org/wiki/Factorial#Ruby def factorial (1..self).reduce(1, :*) end end def combinations(n, r) n.factorial / (r.factorial * (n-r).factorial) end answer = 0 100.downto(3) do |c| (2).upto(c-1) { |r| answer += 1 if combinations(c, r) > 1_000_000 } end puts answer puts "Elapsed Time: #{(Time.now - timer_start)*1000} milliseconds"

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  • Microsoft MVP 2012 – ASP.NET/IIS

    - by hajan
    It’s Sunday. I wasn’t really sure whether I should expect something today or not, although its 1st of July when we all know that the new and re-awarded MVPs should get the ‘Congratulations’ email by Microsoft. And YES! I GOT IT! This is my second year, and first time re-awarded… Microsoft MVP 2012 The feeling is exactly same as the first time… I am honored, privileged, veeeery happy and thankful to Microsoft for this prestigious award! The past year was really great with all the events, speaking engagements in various conferences and camps, many other community activities and the first time visit at MVP Global Summit. I am looking forward to boost even more the Microsoft community activities in the next year... And… part of the email message: Dear Hajan Selmani, Congratulations! We are pleased to present you with the 2012 Microsoft® MVP Award! This award is given to exceptional technical community leaders who actively share their high quality, real world expertise with others. We appreciate your outstanding contributions in ASP.NET/IIS technical communities during the past year. I would like to say a big THANK YOU to all stakeholders. First of all, THANK YOU MICROSOFT for this prestigious award, Thanks to CEE & Italy Region MVP Lead, Alessandro Teglia, who did a great job by helping and supporting MVPs through the whole past year, I hope we will continue collaborating in the same way on the forthcoming year! Thanks to my family, friends, supports, followers, those who read my blogs regularly and have made me reach more than thousands of comments in my ASP.NET Blog :), those who collaborate and work with me on a daily basis and are supporting me in all my community activities. Thank You Everyone! There are lot of new, exciting, great and innovative technologies in the Microsoft Technology Stack. I am excited and really looking forward to rock the community in the years to come! THANK YOU! Hajan

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  • Are today's general purpose languages at the right level of abstraction ?

    - by KeesDijk
    Today Uncle Bob Martin, a genuine hero, showed this video In this video Bob Martin claims that our programming languages are at the right level for our problems at this time. One of the reasons I get from this video as that Bob Martin sees us as detail managers and our problems are at the detail level. This is the first time I have to disagree with Bob Martin and was wondering what the people at programmers think about this. First there is a difference between MDA and MDE MDA in itself hasn't worked and I blame way to much formalisation at a level you can't formalize these kind of problems. MDE and MDD are still trying to prove themselves and in my mind show great promise. e.g. look at MetaEdit The detail still needs to be management in my mind, but you do so in one place (framework or generators) instead of at multiple places. Right for our kind of problems ? I think depends on what problems you look at. Do the current programming languages keep up with the current demands on time to market ? Are they good at bridging the business IT communication gap ? So what do you think ?

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  • pros and cons of taking an ABAP job

    - by sJhonny
    I'm a programmer with 3 years of .NET experience under my belt, and am currently looking for a new job. One of the options I'm considering is as an OO ABAP developer position with SAP. However, I have several concerns about taking an ABAP job: as ABAP is used exclusively by SAP, any experience in ABAP that I have would be irrelevant in the outside world. I'm also worried that I wouldn't be exposed to new technologies while working in ABAP, and ultimately I would lose touch with what's going on in the world. This is a real sore point, since I really enjoy exploring and learning new & cool stuff. (*note: Yes, I could experiment with other technologies & trends on my own time, but this is much harder to do, and isn't really the same as working full-time with them) One of the nicest things about programming, for me, is finding a great OO architecture / design (I'm really into object-oriented :)). I know that ABAP is a procedural language, and I'm not certain how 'OO' it's OO version is. This leads me to the conclusion that, unless I stay with SAP to the end of my career, any time spent there would be professionaly unbenificial. Is there anyone who can shed some light on these opinions? are my concerns founded? Are there any advantages (career and technology-wise) to ABAP that I'm missing?

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  • CodePlex Daily Summary for Tuesday, April 27, 2010

    CodePlex Daily Summary for Tuesday, April 27, 2010New ProjectsActive Directory User Properties Change: A complete application in VS 2005 and VB.NET, for Request Request in User Details in Active Directory, with flow to HR and then to IT for approval ...AVR Terminal: A Windows application for connecting to an AVR via RS232 serial or USB-to-COM FTDI ports. Works on Arduino, Bare Bones Board, and any custom board...Battle Droids: AVR-based Network Combat!: A Battle Droid is an AVR® microcontroller running the BattleDroid firmware. This firmware turns your AVR into a lean, mean, fighting machine, and ...Camp Foundation: Camp Foundationchakma: chakma is a question - answer based web application to make people get questions from anybody around the world and being able to answer them. c...Document.Editor: Document.Editor is a multitab text editor for Windows. It includes plain and rich text format support, multi tab interface so you can edit multiple...Dot Net Marche Music Store Demo Application: This is a demo application that the DotNetMarche user gorup (www.dotnetmarche.org) use to make experiments and prepare demos for our workshopselivators: a monitor which enables the user to view the movement of the elivators in a buildingExtended SSIS Package Execute: The SSIS package execute task is flawed as it does not support passing variables. Here we have a custom task that will pass items in a dataflow as...File tools: File toolsFileExplorer.NET: FileExplorer.NET is a .net usercontrol which tries to mimic the Windows FileExplorer treeview.Kazuku: ASP.NET MVC 2 Content Management SystemKSharp Ajax Control Toolkit Library: Built ontop of the Microsoft ASP.NET Ajax Control Toolkit, this library offers enhanced versions of the controls found in the Ajax Control Toolkit....Nitrous - An Aspx ViewEngine for ASP.NET MVC: Near drop-in replacement ASP.NET ViewEngine for MVC.Open Data Protocol - Client Libraries: This is an Open Source release of the .NET and Silverlight Client Libraries for the Open Data Protocol (OData). For more information on odata, see ...ORAYLIS BI.SmartDiff: BI.SmartDiff is a helper to connect the functionality of BIDS Helper – SmartDiff to TortoiseSVN. BIDS Helper – SmartDiff helps you to get more read...RicciWebSiteSystem: soon websiteSynapse:Silverlight A Simple Silverlight Framework: Synapse:Silverlight is a simplified framework for Silverlight. It's purpose is to help developers and designers produce basic LOB solutions that do...TestProjectMB: Testing Team Foundation ServerThoughtWorks Cruise Notification Interceptor: Cruise notification interceptorThreadSafeControls: ThreadSafeControls is a C# project that greatly simplifies the process of transitioning Windows Forms applications to a multithreaded environment b...Unscrambler: Unscrambler is a multitouch WPF word game built with MVVM Light in order to show how to use the touch maniupation and inertia features included in ...Web Utilities: web utilitiesNew Releases7zbackup - PowerShell Script to Backup Files with 7zip: 7zBackup v. 1.7.1 Stable: Bug Solved : Presence of junction.exe is wrongly referred to 7z.exeAVR Terminal: AVR Terminal v0.2: Here is an Alpha-almost-BETA release of the AVR Terminal. That being said, I use it almost daily and it shouldn't break anything on your system, b...Bistro FSharp Extensions: 0.9.7.0: This is the VS 2010 release of BistroFS extensions. This release focused on usability, adding key functionality such as resource aliasing and secur...Bojinx: Bojinx Dialog Management V1.0: Stable release of the Bojinx Dialog Management library.BOWIE: BOWIE 2010: This new version works on Outlook 2007/2010 and TFS 2008/2010 RTM. Details about all features in this version on the Home Page : http://bowie.code...Catharsis: Catharsis 2.5 on catarsa.com: The Catharsis framework has finally its own portal http://catarsa.com Example - documented steps to create Web-Application http://catarsa.com/Arti...Colorful Expression: Expression Blend 3: Alpha Version, Read Issues and Installing! Colorful Expression is an add-in for Expression Blend and Expression Design that brings you the Adobe K...Colorful Expression: Expression Blend 4: Read Issues and Installing! Colorful Expression is an add-in for Expression Blend and Expression Design that brings you the Adobe Kuler and ColorLo...Courier: Version 1.0: This release includes integration with the Reactive Framework for more elegant message handling and allowing more succinct client code. Full suite...CRM 4.0 Contract Utilities: Release 1.0: Project Description List of Contract Utilities (i.e. custom workflow actions) 1. Change contract status from Active to Draft 2. Copy Contract (with...Document.Editor: 0.9.0: Whats New?: New icon set Bug fix'sDotNetNuke® Blog: 04.00.00: Minimum Required DNN Version: 4.06.02General Code organization * Converted project to .NET 3.5 * Converted solution to Visual Stud...EPiAbstractions: EPiAbstractions 1.2: Updated for EPiServer CMS 6. Only features abstractions for EPiServer CMS. For abstractions for EPiServer.Common and EPiServer.Community use versio...Fluent ViewModel Configuration for WPF (MVVM): FluentViewModel Alpha2: Added support for view model validation using FluentValidation (http://fluentvalidation.codeplex.com/) Fixed exception from Blend while in design...GArphics: Beta v0.9: Beta v0.9. Practically all of the planned features have been implemented and are available to the users. For the version 1.0 mainly just some minor...HTML Ruby: 6.22.2.1: Fixed a bug where HTML Ruby's options window will generate entries in the error log when applying option changes (regression from 6.21.8)HTML Ruby: 6.22.3: Add/remove stop spacing event listener as needed for possible fix to 4620iTuner - The iTunes Companion: iTuner 1.2.3768 Beta 3b: Beta 3 requires iTunes 9.1.0.79 or later A Librarian status panel showing active and queued Librarian scanners. This will be hidden behind the "bi...LiveUpload to Facebook: LiveUpload to Facebook 3.2.3: Version 3.2.3Become a fan on Facebook! Features Quickly and easily upload your photos and videos to Facebook, including any people tags added in W...Maintainance Schedule: Maintenance Scheduler: The first Alpha release of the project.NetSockets: NetSockets (1.2): The NetSockets library (DLL)NSIS Autorun: NSIS Autorun 0.1.2: NSIS Autorun 0.1.1 This release includes source code, application binary, and example materials.OpenSceneGraph glsl samples: OsgGlslSamples Win32 binaries: Project binary release for Windows. The effects shown are: Ambient Occlusion, Depth of Field, DoF with alpha channel, Fire effects, HDR, Light Ma...ORAYLIS BI.SmartDiff: ORAYLIS BI.SmartDiff 0.6.1: First public versionpatterns & practices - Windows Azure Guidance: Code Drop 4 - Content Complete: This release includes documentation and all code samples intended for this first guide. As before, this code release builds on the previous one an...Pex Custom Arithmetic Solver: Custom Solver Package: This is the custom solvers packaged together. To use simply include the dll in your project and add [assembly: PexCustomArithmeticSolver] to your P...PokeIn Comet Ajax Library: PokeIn v08 x86: New FeatureFrom this version forward, PokeIn will define a way between the main page and client side automaticly based to security level. Add "pub...Proxi [Proxy Interface]: Proxi Release 1.0.0.426: Proxi Release 1.0.0.426QuestTracker: QuestTracker 0.3: This release includes recurring quests! Now you can set a quest to uncomplete itself every X minutes, hours, or days! And the quests still retain t...Rensea Image Viewer: RIV 0.4.5: RIV Fix Version. You would need .NET Framework 4.0 to make it run RIVU Improved Version. With separated RIV up-loader, to upload images to Renjian...SCC Switch Provider: Provides a GUI to Switch Source Code Control Provi: Transferred from GotDotNet Workplace. Initial public Release. Downloaded ~922 times from original post.sTASKedit: sTASKedit v0.7a (Alpha): + Fixed: XOR text encoding + Fixed: adding timed rewards missing values + Fixed: occupations in clone()Synapse:Silverlight A Simple Silverlight Framework: Synapse Silverlight Alpha Release: Initial Road-map is being defined.ThoughtWorks Cruise Notification Interceptor: 1.0.0: Initial release.UDC indexes parser: UDC indexex parser Beta 2: Добавлена возможность работать с распределением определителей как если бы генератор был бы LALR(2) То что осталось: Если текстовое дополнение начи...Unscrambler: Release 1.0: Here's the first release of Unscrambler.WinXound: WinXound 3.3.0 Beta 2 for Mac OsX: New: Code Repository (for UDO and personal code) New: Format Code - Added the ability to format only the selected text of the code New: Explore...WPF Inspirational Quote Management System: Release 1.2.2: - Fixed issue some users were having when the application is minimised.Most Popular ProjectsRawrWBFS ManagerAJAX Control ToolkitSilverlight Toolkitpatterns & practices – Enterprise LibraryMicrosoft SQL Server Product Samples: DatabaseWindows Presentation Foundation (WPF)ASP.NETMicrosoft SQL Server Community & SamplesPHPExcelMost Active Projectspatterns & practices – Enterprise LibraryRawrGMap.NET - Great Maps for Windows Forms & PresentationParticle Plot PivotBlogEngine.NETNB_Store - Free DotNetNuke Ecommerce Catalog ModuleFarseer Physics EngineIonics Isapi Rewrite FilterN2 CMSDotNetZip Library

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  • Full-text indexing? You must read this

    - by Kyle Hatlestad
    For those of you who may have missed it, Peter Flies, Principal Technical Support Engineer for WebCenter Content, gave an excellent webcast on database searching and indexing in WebCenter Content.  It's available for replay along with a download of the slidedeck.  Look for the one titled 'WebCenter Content: Database Searching and Indexing'. One of the items he led with...and concluded with...was a recommendation on optimizing your search collection if you are using full-text searching with the Oracle database.  This can greatly improve your search performance.  And this would apply to both Oracle Text Search and DATABASE.FULLTEXT search methods.  Peter describes how a collection can become fragmented over time as content is added, updated, and deleted.  Just like you should defragment your hard drive from time to time to get your files placed on the disk in the most optimal way, you should do the same for the search collection. And optimizing the collection is just a simple procedure call that can be scheduled to be run automatically.   [Read more] 

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  • 2D character controller in unity (trying to get old-school platformers back)

    - by Notbad
    This days I'm trying to create a 2D character controller with unity (using phisics). I'm fairly new to physic engines and it is really hard to get the control feel I'm looking for. I would be really happy if anyone could suggest solution for a problem I'm finding: This is my FixedUpdate right now: public void FixedUpdate() { Vector3 v=new Vector3(0,-10000*Time.fixedDeltaTime,0); _body.AddForce(v); v.y=0; if(state(MovementState.Left)) { v.x=-_walkSpeed*Time.fixedDeltaTime+v.x; if(Mathf.Abs(v.x)>_maxWalkSpeed) v.x=-_maxWalkSpeed; } else if(state(MovementState.Right)) { v.x= _walkSpeed*Time.fixedDeltaTime+v.x; if(Mathf.Abs(v.x)>_maxWalkSpeed) v.x=_maxWalkSpeed; } _body.velocity=v; Debug.Log("Velocity: "+_body.velocity); } I'm trying here to just move the rigid body applying a gravity and a linear force for left and right. I have setup a physic material that makes no bouncing and 0 friction when moving and 1 friction with stand still. The main problem is that I have colliders with slopes and the velocity changes from going up (slower) , going down the slope (faster) and walk on a straight collider (normal). How could this be fixed? As you see I'm applying allways same velocity for x axis. For the player I have it setup with a sphere at feet position that is the rigidbody I'm applying forces to. Any other tip that could make my life easier with this are welcomed :). P.D. While coming home I have noticed I could solve this applying a constant force parallel to the surface the player is walking, but don't know if it is best method.

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  • Are today's general purpose languages at the right level of abstarction ?

    - by KeesDijk
    Today Uncle Bob Martin, a genuine hero, showed this video In this video Bob Martin claims that our programming languages are at the right level for our problems at this time. One of the reasons I get from this video as that he Bob Martin sees us detail managers and our problems are at the detail level. This is the first time I have to disagree with Bob Martin and was wondering what the people at programmers think about this. First there is a difference between MDA and MDE MDA in itself hasn't worked and I blame way to much formalisation at a level you can't formalize these kind of problems. MDE and MDD are still trying to prove themselves and in my mind show great promise. e.g. look at MetaEdit The detail still needs to be management in my mind, but you do so in one place (framework or generators) instead of at multiple places. Right for our kind of problems ? I think depends on what problems you look at. Do the current programming languages keep up with the current demands on time to market ? Are they good at bridging the business IT communication gap ? So what do you think ?

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  • Nice take on Open Source

    - by EmbeddedInsider
    I just revisited the “Micro Framework”- Microsoft’s bootable runtime, essentially an OS that allows managed code to run on small 32bit CPUs, even without Memory Management.  Things are happening http://msdn.microsoft.com/en-us/netframework/bb267253.aspx Abstract The Microsoft .NET Micro Framework is a bootable runtime module that brings the advantages of .NET programming to devices too resource-constrained to run other Microsoft embedded platforms. The benefits of developing with the .NET Micro Framework include the C# programming language, a managed execution environment, a substantial subset of the .NET libraries, and Visual Studio™ deployment and debugging. In this white paper we explain why the .NET Micro Framework is an ideal choice for embedded development and provide technical details of the platform’s Hardware Abstraction Layer (HAL) and Common Language Runtime (CLR). “Micro Framework” is an interesting product, it is very low cost, like zero. And it is largely community controlled under the Apache License.  A partner network is building, and the application environment is .NET. I have been following this for some time, and the community open source approach seems to be working.  There are new features/packages emerging, for example an F# programming language (ARGH! I am still wresting with VB and C#). Anyway, what I found most interesting was a port to Tron.  Tron is a very popular Japanese open source intuitive.  It is a very real time, very compact kernel, and is, like the Micro Framework, ‘free as beer’.  One limit on MF was it was not real time.  But the merger with Tron may eliminate that problem.  Certainly, if I were dealing with a consumer product with quantities in the millions (like a SmartGrid device, or a toy) I would seriously consider something out of this technology pool.

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  • Social Business Forum Milano: Day 1

    - by me
    div.c50 {font-family: Helvetica;} div.c49 {position: relative; height: 0px; overflow: hidden;} span.c48 {color: #333333; font-size: 14px; line-height: 18px;} div.c47 {background-color: #ffffff; border-left: 1px solid rgba(0, 0, 0, 0.098); border-right: 1px solid rgba(0, 0, 0, 0.098); background-clip: padding-box;} div.c46 {color: #666666; font-family: arial, helvetica, sans-serif; font-weight: normal} span.c45 {line-height: 14px;} div.c44 {border-width: 0px; font-family: arial, helvetica, sans-serif; margin: 0px; outline-width: 0px; padding: 0px 0px 10px; vertical-align: baseline} div.c43 {border-width: 0px; margin: 0px; outline-width: 0px; padding: 0px 0px 10px; vertical-align: baseline;} p.c42 {color: #666666; font-family: arial, helvetica, sans-serif} span.c41 {line-height: 14px; font-size: 11px;} h2.c40 {font-family: arial, helvetica, sans-serif} p.c39 {font-family: arial, helvetica, sans-serif} span.c38 {font-family: arial, helvetica, sans-serif; font-size: 80%; font-weight: bold} div.c37 {color: #999999; font-size: 14px; font-weight: normal; line-height: 18px} div.c36 {background-clip: padding-box; background-color: #ffffff; border-bottom: 1px solid #e8e8e8; border-left: 1px solid rgba(0, 0, 0, 0.098); border-right: 1px solid rgba(0, 0, 0, 0.098); cursor: pointer; margin-left: 58px; min-height: 51px; padding: 9px 12px; position: relative; z-index: auto} div.c35 {background-clip: padding-box; background-color: #ffffff; border-bottom: 1px solid #e8e8e8; border-left: 1px solid rgba(0, 0, 0, 0.098); border-right: 1px solid rgba(0, 0, 0, 0.098); cursor: pointer; margin-left: 58px; min-height: 51px; padding: 9px 12px; position: relative} div.c34 {overflow: hidden; font-size: 12px; padding-top: 1px;} ul.c33 {padding: 0px; margin: 0px; list-style-type: none; opacity: 0;} li.c32 {display: inline;} a.c31 {color: #298500; text-decoration: none; outline-width: 0px; font-size: 12px; margin-left: 8px;} a.c30 {color: #999999; text-decoration: none; outline-width: 0px; font-size: 12px; float: left; margin-right: 2px;} strong.c29 {font-weight: normal; color: #298500;} span.c28 {color: #999999;} div.c27 {font-family: arial, helvetica, sans-serif; margin: 0px; word-wrap: break-word} span.c26 {border-width: 0px; width: 48px; height: 48px; border-radius: 5px 5px 5px 5px; position: absolute; top: 12px; left: 12px;} small.c25 {font-size: 12px; color: #bbbbbb; position: absolute; top: 9px; right: 12px; float: right; margin-top: 1px;} a.c24 {color: #999999; text-decoration: none; outline-width: 0px; font-size: 12px;} h3.c23 {font-family: arial, helvetica, sans-serif} span.c22 {font-family: arial, helvetica, sans-serif} div.c21 {display: inline ! important; font-weight: normal} span.c20 {font-family: arial, helvetica, sans-serif; font-size: 80%} a.c19 {font-weight: normal;} span.c18 {font-weight: normal;} div.c17 {font-weight: normal;} div.c16 {margin: 0px; word-wrap: break-word;} a.c15 {color: #298500; text-decoration: none; outline-width: 0px;} strong.c14 {font-weight: normal; color: inherit;} span.c13 {color: #7eb566; text-decoration: none} span.c12 {color: #333333; font-family: arial, helvetica, sans-serif; font-size: 14px; line-height: 18px} a.c11 {color: #999999; text-decoration: none; outline-width: 0px;} span.c10 {font-size: 12px; color: #999999; direction: ltr; unicode-bidi: embed;} strong.c9 {font-weight: normal;} span.c8 {color: #bbbbbb; text-decoration: none} strong.c7 {font-weight: bold; color: #333333;} div.c6 {font-family: arial, helvetica, sans-serif; font-weight: normal} div.c5 {font-family: arial, helvetica, sans-serif; font-size: 80%; font-weight: normal} p.c4 {font-family: arial, helvetica, sans-serif; font-size: 80%; font-weight: normal} h3.c3 {font-family: arial, helvetica, sans-serif; font-weight: bold} span.c2 {font-size: 80%} span.c1 {font-family: arial,helvetica,sans-serif;} Here are my impressions of the first day of the Social Business Forum in Milano A dialogue on Social Business Manifesto - Emanuele Scotti, Rosario Sica The presentation was focusing on Thesis and Anti-Thesis around Social Business My favorite one is: Peter H. Reiser ?@peterreiser social business manifesto theses #2: organizations are conversations - hello Oracle Social Network #sbf12 Here are the Thesis (auto-translated from italian to english) From Stress to Success - Pragmatic pathways for Social Business - John Hagel John Hagel talked about challenges of deploying new social technologies. Below are some key points participant tweeted during the session. 6hRhiannon Hughes ?@Rhi_Hughes Favourite quote this morning 'We need to strengthen the champions & neutralise the enemies' John Hagel. Not a hard task at all #sbf12 Expand Reply Retweet Favorite 8hElena Torresani ?@ElenaTorresani Minimize the power of the enemies of change. Maximize the power of the champions - John Hagel #sbf12 Expand Reply Retweet Favorite 8hGaetano Mazzanti ?@mgaewsj John Hagel change: minimize the power of the enemies #sbf12 Expand Reply Retweet Favorite 8hGaetano Mazzanti ?@mgaewsj John Hagel social software as band-aid for poor leadtime/waste management? mmm #sbf12 Expand Reply Retweet Favorite 8hElena Torresani ?@ElenaTorresani "information is power. We need access to information to get power"John Hagel, Deloitte &Touche #sbf12http://instagr.am/p/LcjgFqMXrf/ View photo Reply Retweet Favorite 8hItalo Marconi ?@italomarconi Information is power and Knowledge is subversive. John Hagel#sbf12 Expand Reply Retweet Favorite 8hdanielce ?@danielce #sbf12 john Hagel: innovation is not rational. from Milano, Milano Reply Retweet Favorite 8hGaetano Mazzanti ?@mgaewsj John Hagel: change is a political (not rational) process #sbf12 Expand Reply Retweet Favorite Enterprise gamification to drive engagement - Ray Wang Ray Wang did an excellent speech around engagement strategies and gamification More details can be found on the Harvard Business Review blog Panel Discussion: Does technology matter? Understanding how software enables or prevents participation Christian Finn, Ram Menon, Mike Gotta, moderated by Paolo Calderari Below are the highlights of the panel discussions as live tweets: 2hPeter H. Reiser ?@peterreiser @cfinn Q: social silos: mega trend social suites - do we create social silos + apps silos + org silos ... #sbf12 Expand Reply Delete Favorite 2hPeter H. Reiser ?@peterreiser @cfinn A: Social will be less siloed - more integrated into application design. Analyatics is key to make intelligent decisions #sbf12 Expand Reply Delete Favorite 2hPeter H. Reiser ?@peterreiser @MikeGotta - A: its more social be design then social by layer - Better work experience using social design. #sbf12 Expand Reply Delete Favorite 2hPeter H. Reiser ?@peterreiser Ram Menon: A: Social + Mobile + consumeration is coming together#sbf12 Expand Reply Delete Favorite 2hPeter H. Reiser ?@peterreiser Q: What is the evolution for social business solution in the next 4-5 years? #sbf12 Expand Reply Delete Favorite 2hPeter H. Reiser ?@peterreiser @cfinn Adoption: A: User experience is king - no training needed - We let you participate into a conversation via mobile and email#sbf12 Expand Reply Delete Favorite 2hPeter H. Reiser ?@peterreiser @MikeGotta A:Adoption - how can we measure quality? Literacy - Are people get confident to talk to a invisible audience ? #sbf12 Expand Reply Delete Favorite 2hPeter H. Reiser ?@peterreiser Ram Meno: A:Adoption - What should I measure ? Depend on business goal you want to active? #sbf12 Expand Reply Delete Favorite 2hPeter H. Reiser ?@peterreiser Q: How can technology facilitate adoption #sbf12 Expand Reply Delete Favorite 2hPeter H. Reiser ?@peterreiser #sbf12 @cfinn @mgotta Ram Menon at panel discussion about social technology @oraclewebcenter http://pic.twitter.com/Pquz73jO View photo Reply Delete Favorite 2hPeter H. Reiser ?@peterreiser Ram Menon: 100% of data is in a system somewhere. 100% of collective intelligence is with people. Social System bridge both worlds Expand Reply Delete Favorite 2hPeter H. Reiser ?@peterreiser #sbf12 @MikeGotta Adoption is specific to the culture of the company Expand Reply Delete Favorite 2hPeter H. Reiser ?@peterreiser @cfinn - drive adoption is important @MikeGotta - activity stream + watch list is most important feature in a social system #sbf12 Expand Reply Delete Favorite 2hPeter H. Reiser ?@peterreiser @MikeGotta Why just adoption? email as 100% adoption? #sbf12 Expand Reply Delete Favorite 2hPeter H. Reiser ?@peterreiser @MikeGotta Ram Menon respond: there is only 1 questions to ask: What is the adoption? #sbf12 @socialadoption you like this ? #sbf12 Expand Reply Delete Favorite 3hPeter H. Reiser ?@peterreiser @MikeGotta - just replacing old technology (e.g. email) with new technology does not help. we need to change model/attitude #sbf12 Expand Reply Delete Favorite 3hPeter H. Reiser ?@peterreiser Ram Menon: CEO mandated to replace 6500 email aliases with Social Networking Software #sbf12 Expand Reply Delete Favorite 3hPeter H. Reiser ?@peterreiser @MikeGotta A: How to bring interface together #sbf12 . Going from point tools to platform, UI, Architecture + Eco-system is important Expand Reply Delete Favorite 3hPeter H. Reiser ?@peterreiser Q: How is technology important in Social Business #sbf12 A:@cfinn - technology is enabler , user experience -easy of use is important Expand Reply Delete Favorite 3hPeter H. Reiser ?@peterreiser @cfinn particiapte in panel "Does technology matter? Understanding how software enables or prevents participation" #sbf #webcenter

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  • Using Artificial Intelligence (AI) to predict Stock Prices

    - by akaphenom
    Given a set of datavery similar to the Motley Fool CAPS system, where individual users enter BUY and SELL recommendations on various equities. What I would like to do is show each recommendation and I guess some how rate (1-5) as to whether it was good predictor<5 (ie corellation coeffient = 1) of the future stock price (or eps or whatever) or a horrible predictor (ie corellation coeffient = -1) or somewhere inbetween. Each recommendation is tagged to a particular user, so that can be tracked over time. I can also track market direction (bullish / bearish) based off of something like sp500 price. The components I think that would make sense in the model would be: user direction (long/short) market direction sector of stock The thought is that some users are better in bull markets than bear (and vice versa), and some are better at shorts than longs- and then a cobination the above. I can automatically tag the market direction and sector (based off the market at the time and the equity being recommended). The thought is that I could present a series of screens and allow me to rank each individual recommendation by displaying available data absolute, market and sector out performance for a specfic time period out. I would follow a detailed list for ranking the stocks so that the ranking is as objective as possible. My assumtion is that a single user is right no more than 57% of the time - but who knows. I could load the system and say "Lets rank the recommendation as a predictor of stock value 90 days forward"; and that would represent a very explicit set of rankings. NOW here is the crux - I want to create some sort of machine learning algorithm that can identify patterns over a series of time so that as recommendations stream into the application we maintain a ranking of that stock (ie. similar to correlation coeeficient) as to the likelihood of that recommendation (in addition to the past series of recommendations ) will affect the price. Now here is the super crux. I have never taken an AI class / read an AI book / never mind specific to machine learning. So I cam looking for guidance - sample or description of a similar system I could adapt. Place to look for info or any general help. Or even push me in the right direction to get started... My hope is to implment this with F# and be able to impress my friends with a new skillset in F# with an implementation of machine learnign and potentially something (application / source) I can include in a tech portfolio or blog space; Thank you for any advice in advance.

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  • Getting Started with Puppet on Oracle Solaris 11

    - by Glynn Foster
    One of the exciting enhancements with Oracle Solaris 11.2 has been the introduction of Puppet. While upstream Puppet did have some rudimentary support for Oracle Solaris 11, Drew Fisher and Ginnie Wray worked tirelessly to add enhance the Oracle Solaris Puppet offering. We've talked to customers over the past few years and asked them what their problems were and what technologies they were using, particularly for configuration management. Puppet came up time and time again, and it made a huge amount of sense bringing it as a 1st class citizen in the Oracle Solaris platform. So what is Puppet, and why is it useful? To quote from PuppetLabs, the guys who are responsible for creating Puppet: Puppet is a declarative, model-based approach to IT automation, helping you manage infrastructure throughout its lifecycle, from provisioning and configuration to orchestration and reporting. Using Puppet, you can easily automate repetitive tasks, quickly deploy critical applications, and proactively manage change, scaling from 10s of servers to 1000s, on-premise or in the cloud. What's more, with Puppet support for Oracle Solaris, administrators can now manage a completely heterogeneous data center from a single or series of Puppet masters. Better still, it's an excellent tool when combined with our new compliance framework to ensure you're meeting your compliance regulations. We're not stopping there of course, and we'll enhance our offerings over time, and work with PuppetLabs to get some of this support upstream (or into the Puppet Forge). So if you've heard some of the buzz around Puppet and never quite got started, and have some Oracle Solaris real estate that you'd love to manage, check out the Getting Started with Puppet on Oracle Solaris 11 guide.

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  • Should I be worried about overengineering programming assignments given during interview process?

    - by DormoTheNord
    I recently had a phone interview with a company. After that phone interview, I was told to complete a short programming assignment (a small program; shouldn't take more than three hours). I'm only directly instructed to complete the assignment and turn in the code. I was given complete freedom to use any language I wished and was not told exactly how to turn in the code. Immediately I planned on throwing it on Github, writing a test suite for it, using Travis-CI (free continuous integration for public Github repositories) to run the test suites, and using CMake to build the Linux makefiles for Travis-CI. That way, not only can I demonstrate that I understand how to use Git, CMake, Travis-CI, and how to write tests, but I can also simply link to the Travis-CI page so they can see the output of the tests. I figured that'd make it a tiny bit more convenient for the interviewer. Since I know those technologies well, it would add essentially no time to the assignment. However, I'm a bit worried that doing all this for a relatively simple task would look bad. Although it wouldn't add much more time at all for me, I don't want them thinking I spend too much time on things that should be simple.

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  • Windows 7 not booting after installing Ubuntu 12.10

    - by Imran Choudhry
    I have Samsung sf511 with Windows 7 Home preinstalled. I installed Ubuntu 12.10 last night. First I mounted downloaded ubuntu 12.10 iso on a DVD from Windows 7, then I restarted, changed the boot option to DVD and let the Ubuntu DVD run. I selected "Install ubuntu alongside windows 7". In the next step I allocated the diskspace . Ubuntu installed perfectly and it ranned OK. I spent a good time exploring Ubuntu. When I restarted to start my work on Windows again and selected Windows 7 to boot, it showed blue screen after booting up (after logging in). I tried restarting several times but the same blue screen keep showing at the same point of bootup. I also restored windows to an earlier time. Left with no option I booted from Samsung provided windows recovery option. The recovery process ran fine but when it restarted to boot Windows for the first time all I see is a black screen. Nothing happens. It switches between dark command promt screen to a pitch black screen as if it's rebooting after every 10 seconds or so. The laptop can be booted from the DVD Drive or USB drive but is not booting from Harddisk. What should I do in order to use both Windows 7 and Ubuntu?

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  • Static objects and concurrency in a web application

    - by Ionut
    I'm developing small Java Web Applications on Tomcat server and I'm using MySQL as my database. Up until now I was using a connection singleton for accessing the database but I found out that this will ensure just on connection per Application and there will be problems if multiple users want to access the database in the same time. (They all have to make us of that single Connection object). I created a Connection Pool and I hope that this is the correct way of doing things. Furthermore it seems that I developed the bad habit of creating a lot of static object and static methods (mainly because I was under the wrong impression that every static object will be duplicated for every client which accesses my application). Because of this all the Service Classes ( classes used to handle database data) are static and distributed through a ServiceFactory: public class ServiceFactory { private static final String JDBC = "JDBC"; private static String impl; private static AccountService accountService; private static BoardService boardService; public static AccountService getAccountService(){ initConfig(); if (accountService == null){ if (impl.equalsIgnoreCase(JDBC)){ accountService = new JDBCAccountService(); } } return accountService; } public static BoardService getBoardService(){ initConfig(); if (boardService == null){ if (impl.equalsIgnoreCase(JDBC)){ boardService = new JDBCBoardService(); } } return boardService; } private static void initConfig(){ if (StringUtil.isEmpty(impl)){ impl = ConfigUtil.getProperty("service.implementation"); // If the config failed initialize with standard if (StringUtil.isEmpty(impl)){ impl = JDBC; } } } This was the factory class which, as you can see, allows just one Service to exist at any time. Now, is this a bad practice? What happens if let's say 1k users access AccountService simultaneously? I know that all this questions and bad practices come from a bad understanding of the static attribute in a web application and the way the server handles this attributes. Any help on this topic would be more than welcomed. Thank you for your time!

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