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• Need help starting with DSL for charts/graphs

  - by Rex M

  I am unaware of any established work into Domain Specific Languages for describing charts / graphs. I am looking for specific answers of "yes, something like that exists (here)". To help be clear, in case I am possibly using the wrong verbiage to describe it, to me a DSL for charts would most certainly include: A grammar for describing the shape of an expected data set A grammar for describing a pipeline of behaviors that render an output Abstract / high-level enough to be mappable to most tool-specific grammars, such as Excel, Highchart, matplotlib, etc.

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• Google Cloud Platform : nouvelles fonctionnalités, augmentation des capacités des centres de données et réduction des prix

  Google Cloud Platform : nouvelles fonctionnalités réduction des prix et augmentation des capacités des centres de données en Europe Google a apporté une mise à jour importante à son offre Google Cloud Platform. Google Cloud Platform est une suite de solution Cloud computing (SaaS et IaaS) pour les développeurs, les entreprises et biens plus. L'offre comprend les plateformes : App Engine, Cloud Storage, BigQuery, Compute Engine, Cloud SQL, etc. Compute Engine, l'offre IaaS (Infrastructure as a Service) de l'éditeur dévoilée en juin dernier avec quatre types d'instances, s'enrichit de 36 nouveaux types d'instances, avec à la clé une réduction générale des prix. De...

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• Level design - Are games development degrees worth it? [on hold]

  - by Tristan

  I want to go into Level design or Environment design and wondering if degrees are at all worth it for this area, as long as you have a good portfolio. I'm currently on a "Computing and Games Development" course and I feel like dropping out because I am not enjoying it. It's mostly computer based, which I'm not doing that great at, and little games Dev. But I don't know what do to... I do already have some high level education with a "Level 3 extended diploma". Thanks.

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• When and why are certain data structures used in the context of web development?

  - by Ein Doofus

  While browsing around the MSDN I came across: http://msdn.microsoft.com/en-us/library/aa287104%28v=vs.71%29 which lists various data structures such as: Queues Stacks Hashtables Binary Trees Binary Search Trees Graphs (I believe there are also Lists) and I was hoping to get a high-level overview of when these various data structures can be used in the broad context of web development, and when used, why one data structure is generally used instead of any other one.

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• What economic books would you suggest for learning about economic valuation of goods and simulations thereof?

  - by Rushyo

  I'm looking to create an economic model for a game based on goods created procedurally. Every natural resource and produced good would be procedurally generated, with certain goods being assigned certain uses. Fakesium might be used for the production of Weapon A and produced from Fakesium factories which use Dilithium and Widgets as reagents, where Widgets are also the product of Foo and Bar The problem is not creating the resources and their various production utlities - but getting the game's AI empires and merchants to (Addendum: somewhat) correctly value the goods according to their scarcity, utility and production costs. I need to create a simulation of goods which allows the various game factions to assign a common value denominator (credits) to each resource, depending on how much its worth to that empire. I see the simulation being something like: "I have a high requirement for Weapon A. Since I don't have much of Fakesium, which is needed for Weapon A - I must have a high demand for Fakesium. If I can acquire Fakesium, devalue it. If not, increase its value - and also increase demand for Dilithium and Widgets too." This is very naive - because it may be much much cheaper for the empire to simply purchase Dilithium and Widgets directly rather than purchasing Fakesium, for example. Another example is two resources might allow the creation of Weapon A (Fakesium and Lieron), so we'd need to consider that. I've been scratching my head over the problem and it keeps growing. By the time the player joins the world, I'd expect enough iterations of this process to have occurred that prices would have largely normalised - and would then only trigger rarely to compensate for major changes (eg. if the player blows up the world's only Foo mine!) Could anyone suggest resources (books, largely) which outline this style of modelling, preferably in the context of simulations? Since this problem would never occur outside fantasy worlds, I figured this is probably the most likely place to find people who have encountered similar problems and I'm sure there's people who know of good places for Games Developers to start looking at less specific economic theory too. Additionally, does anyone know of any developers with blogs whose games or research applications perform similar modelling? EDIT: I think I should underline that I'm not looking for optimal solutions. I'm looking to make the actors impulsive - making rudimentary decisions based on fuzzy inputs about what they care about or don't. I'm aiming to understand the problem area better not derive answers. All the textbooks I've found seem to be about real-world economics or how to solve complex theoretical problems, neither of which are terribly relevant to the actor's decision making.

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• How to Search For Backlinks

  Google encourages backlinks and considers each backlink to a website as a vote in favor of that website. Hence the more the number of quality backlinks the better chances the website stands to rank high in Google's search results page. Also with good quality backlinks to your website you can expect...

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• Kostenlose Openbooks: Handbuch zu Ubuntu GNU/Linux 12.04 LTS

  - by britta wolf

  Ab sofort steht das umfassende Handbuch zu Ubuntu GNU/Linux 12.04 LTS als kostenloses Openbook auf der Website von Galileo Computing zur Verfügung. Mit diesem Standardwerk lernt man alles Wissenswerte über die Linux-Distribution Ubuntu »Precise Pangolin« kennen. Das Buch überzeugt durch seine Themenvielfalt und Vollständigkeit. Von der Installation, der Benutzeroberfläche »Unity«, der Paketverwaltung über Optimierung, Programmierung, Migration und Kernelkompilierung bis hin zur Virtualisierung und Serverkonfiguration finden die Leser alle wichtigen Fragen in diesem über 1.000 Seiten starken Buch beantwortet. Darüber hinaus profitieren sie von mehr als 300 eigens gekennzeichneten Tipps und Tricks sowie von zahlreichen Praxisworkshops. Sowohl Einsteiger, erfahrene Anwender als auch Profis profitieren von diesem Handbuch. Die HTML-Version kann bequem im Browser gelesen werden. Das gedruckte Buch ist im Buchhandel erhältlich. Link zum Openbook: http://openbook.galileocomputing.de/ubuntu/ 

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• SAP veut transformer l'approche des bases de données avec SAP NetWeaver BW et une plateforme de développement pour HANA

  SAP veut transformer l'approche traditionnelle des bases de données Avec SAP NetWeaver BW et une nouvelle plateforme de développement pour HANA « Les toutes dernières innovations de SAP HANA produisent des environnements de Data Warehouse dopés, qui fournissent des données clients en temps réel. SAP HANA permet également d'animer un réseau en ligne et offre une plateforme ouverte aux développeurs », ces avec ces mots que SAP vient d'annoncer que le composant SAP NetWeaver Business Warehouse (SAP NetWeaver BW) allait être animé par la plateforme SAP HANA. HANA (pour High-Performance Analytic Appliance), doit permettre d'améliorer considérablement les performances des requêt...

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• 6 of the Best Free Linux Application Launchers

  <b>LinuxLinks: </b>"To provide an insight into the quality of software that is available, we have compiled a list of 6 high quality Linux application launchers. Hopefully, there will be something of interest for anyone who wants to improve their productivity."

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• Wise Selection of SEO Services Company

  As a site owner, you have to be wise enough in the selection of the SEO services company that will help your site rank high in the search engine. Be aware to some companies who are just interested with your money that will give you a poor outcome.

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• Visual Studio 2010 Takes the Cake for Vermont.NETs April 12th Meeting

  Sorry, my cheesy title just could not be helped. Were getting a cake for the Vermont.NET VS2010 launch meeting on April 12th (www.vtdotnet.org for more info). Since there seems to be no high resolution logo available, I created this image for the local bakery to scan and put on the cake....Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• .NET mulithreading and quad core processors

  - by w0051977

  I have a single threaded application that runs on a machine with a quad core processor. The scheduled tasks that run VB.NET forms are too slow. I am new to multi threading and parallel computing. If you have a single threaded application that runs on a server with a multi core processor then does the application only ever use one of the processors? What happens if you have multiple scheduled tasks and multiple instances are in memory at the same time? I have read this question on Stackoverflow: http://stackoverflow.com/questions/607775/how-to-write-net-applications-that-utilize-multi-core-processors, but I am still not clear.

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• Cheap Ink Cartridges - Your Questions Answered

  If you?ve checked the prices of ink at a High Street office supplies or computer shop, you may not believe that such things as cheap ink cartridge exist. Most new printer owners are shocked to discov... [Author: Kathryn Dawson - Computers and Internet - May 31, 2010]

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• Basic collision direction detection on 2d objects

  - by Osso Buko

  I am trying to develop a platform game for Android by using ANdroid GL Engine (ANGLE). And I am having trouble with collision detection. I have two objects which is shaped as rectangular. And no change in rotation. Here is a scheme of attributes of objects. What i am trying to do is when objects collide they block each other's movement on that direction. Every object has 4 boolean (bTop, bBottom, bRight, bLeft). For example when bBottom is true object can't advance on that direction. I came up with a solution but it seems it only works on one dimensional. Bottom and top or right and left. public void collisionPlatform (MyObject a, MyObject b) { // first obj is player and second is a wall or a platform Vector p1 = a.mPosition; // p1 = middle point of first object Vector d1 = a.mPosition2; // width(mX) and height of first object Vector mSpeed1 = a.mSpeed; // speed vector of first object Vector p2 = b.mPosition; // p1 = middle point of second object Vector d2 = b.mPosition2; // width(mX) and height of second object Vector mSpeed2 = b.mSpeed; // speed vector of second object float xDist, yDist; // distant between middle of two object float width , height; // this is average of two objects measurements width=(width1+width2)/2 xDist=(p1.mX - p2.mX); // calculate distance // if positive first object is at the right yDist=(p1.mY - p2.mY); // if positive first object is below width = d1.mX + d2.mX; // average measurements calculate height = d1.mY + d2.mY; width/=2; height/=2; if (Math.abs(xDist) < width && Math.abs(yDist) < height) { // Two object is collided if(p1.mY>p2.mY) { // first object is below second one a.bTop = true; if(a.mSpeed.mY<0) a.mSpeed.mY=0; b.bBottom = true; if(b.mSpeed.mY>0) b.mSpeed.mY=0; } else { a.bBottom = true; if(a.mSpeed.mY>0) a.mSpeed.mY=0; b.bTop = true; if(b.mSpeed.mY<0) b.mSpeed.mY=0; } } As seen in my code it simply will not work. when object comes from right or left it doesn't work. I tried couple of ways other than this one but none worked. I am guessing right method will include mSpeed vector. But I have no idea how to do it. I really appreciate if you could help. Sorry for my bad english.

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• Analyzing the errorlog

  - by TiborKaraszi

  How often do you do this? Look over each message (type) in the errorlog file and determine whether this is something you want to act on. Sure, some (but not all) of you have some monitoring solution in place, but are you 100% confident that it really will notify for all messages that you might find interesting? That there isn't even one little message hiding in there that you would find valuable knowing about? Or how about messages that you typically don't are about, but knowing that you have a high...(read more)

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• How can you predict the time it will take for two processes in two different machines in a cluster to communicate?

  - by Dokkat

  I am trying to develop a computing application which needs a lot of memory (500gb). Buying a single machine for that is overly expensive. I can, though, buy ~100 small instances on Digital Ocean or similar, divide the memory in blocks and use TCP to emulate shared memory between the instances. Now, my question is: how can I measure/predict the time it will take for two processes in two different machines like that to share information, in comparison to IPC and shared memory? Are there rules of thumb? I don't want exact values, but knowing more or less how much faster one is would be very helpful in visualising the feasibility of this approach.

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• PeopleSoft New Design Solves Navigation Problem

  - by Applications User Experience

  Anna Budovsky, User Experience Principal Designer, Applications User Experience In PeopleSoft we strive to improve User Experience on all levels. Simplifying navigation and streamlining access to the most important pages is always an important goal. No one likes to waste time waiting for pages to load and watching a spinning glass going on and on. Those performance-affecting server trips, page-load waits and just-too-many clicks were complained about for a long time. Something had to be done. A few new designs came in PeopleSoft 9.2 helping users to access their everyday work areas easier and faster. For example, Dashboard and Work Center aggregate most accessed information sections on a single page; Related Information allows users to complete transaction-related-research without interrupting a transaction and Secure Search gets users to a specific page directly. Today we’ll talk about the Actions menu. Most PeopleSoft pages are shared between individual products and product lines. It means changing the content on a single page involves Oracle development and quality assurance time for making and testing the changes. In order to streamline the navigation and cut down on accessing PeopleSoft pages one-page-at-a-time, we introduced a new menu design. The new menu allows accessing shared pages without the Oracle development team making any local changes, and it works as an additional one-click-path to specific high-traffic actionable pages. Let’s look at how many steps it took to Change Salary for an employee in HCM 9.1 before: Figure 1. BEFORE: The 6 steps a user would take to Change Salary in PeopleSoft HCM 9.1 In PeopleSoft 9.1 it took 5 steps + page loading time + additional verification time for making sure a correct employee is selected from the table. In PeopleSoft 9.2 it only takes 2 steps. To complete Ad Hoc Change Salary action, the user can start from the HCM Manager's Dashboard, click the Action menu within a table, choose a menu option, and access a correct employee’s details page to take an action. Figure 2. AFTER: The 2 steps a user would take to Change Salary in PeopleSoft HCM 9.2 The new menu is placed on a row level which ensures the user accesses the correct employee’s details page. The Actions menu separates menu options into hierarchical sections which help to scan and access the correct option quickly. The new menu’s small size and its structure enabled users to access high-traffic pages from any page and from any part of the page. No more spinning hourglass, no more multiple pages upload. The flexible design fits anywhere on a page and provides a fast and reliable path to the correct destination within the product. Now users can: Access any target page no matter how far it is buried from the starting point; Reduce navigation and page-load time; Improve productivity and reduce errors. The new menu design is available and widely used in all PeopleSoft 9.2 product lines.

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• Webcast: Oracle Solaris 11 – Innovations for Your Datacenter

  - by Cinzia Mascanzoni

  Invite your partners to view this pre-recorded online event to learn how new advances in Oracle Solaris 11.1 can help them deliver a secure, scalable, mission-critical cloud. These three informative and practical sessions will also present the extended high-availability and disaster recovery capabilities of Oracle Solaris Cluster, Register now for the event and watch the Oracle Solaris 20th Anniversary video.

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• How to use PostgreSQL on AWS - Ubuntu 11.10

  - by That1Guy

  I'm extremely new to cloud-computing, Linux, and PostgreSQL, so if this is a stupid question, I apologize. I've managed to create an m1.large instance running Ubuntu 11.10, connect via Putty SSH, and install PostgreSQL (sudo apt-get install postgresql), but that is as far as I've gotten. My goal is to run several python web-scraping scripts that I've written on this instance (so as not to eat up all of our bandwidth (smaller company at the moment)) and insert the scraped data into a PostgreSQL table on the instance and later retrieve that data to store on our local server (as I've heard AWS EBS is unreliable and I don't want to take chances). How can I configure PostgreSQL on my AWS instance? How can I access the data from my machine? I currently use PgAdmin3 to manage PosgreSQL on our local server. Can I use this same interface to manage PostgreSQL on my AWS instance? Any suggestions, solutions, links, etc is greatly appreciated. And again, if this is a dumb question, I apologize.

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• Google I/O 2012 - Writing Secure Web Apps and Chrome Extensions

  Google I/O 2012 - Writing Secure Web Apps and Chrome Extensions Jorge Lucangeli Obes Today, a carefully developed web app can boast a high level of security, by taking advantage of several technologies: HTML5, CSP, NaCl, and the Chrome extension framework. The objective of this session is to show how these technologies allow a developer to create a web app that rivals or exceeds a desktop app in features, while remaining more secure than its desktop counterpart. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 46 1 ratings Time: 56:16 More in Science & Technology

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• PAL–Performance Analysis of Logs

  - by GavinPayneUK

  I was doing some research earlier this week on SQL Server related troubleshooting tools and was surprised I’d forgotten about Microsoft’s PAL tool – Performance Analysis of Logs. PAL is a free PowerShell UI based tool from Microsoft that creates a perfmon template which can then be used to capture counters most relevant to a high-level performance review PAL will them give for specific Microsoft server deployments, SQL Server being one of them.  Everyone knows what perfmon does, probably too...(read more)

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• May 2010 Chicago Architects Group Wrap Up

  - by Tim Murphy

  Scott Seely did a wonderful job this evening of explaining how cloud services fit into our application architectures and specifically how Azure is organized.  He covered everything from Table Storage to code name Dallas (OData).  The discussion continued well beyond the end of the meeting which was attended by members of all sectors of IT and multiple platforms. Be sure to join us in the upcoming months as we cover the following topics: June – Document Generation Architecture July – Architecting a BI Installation August - MVVM – the What, Why and When Stay tuned. del.icio.us Tags: Chicago Architects Group,Azure,Cloud Computing,Dallas,Scott Seely,MVVM,Business Intelligence

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• Idera Announces SQL Compliance Manager 3.6

  Perhaps the main highlight of SQL compliance manager 3.6's impressive set of features is its ability to actively track any activities of privileged users. When users of high administrative privileges access column groups in monitored tables, SQL compliance manager 3.6 issues alerts to security administrators, compliance officers, IT auditors, and the like in a proactive manner. Such functionality allows the product to provide an extra barrier against the possibility of insider threats to an organization's data. Idera developed SQL compliance manager to supply its clients with real-time audit...

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• Examine your readiness for managing Enterprise Private Cloud

  - by Anand Akela

  Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Cloud computing promises to deliver greater agility to meet demanding  business needs, operational efficiencies, and lower cost. However these promises cannot be realized and enterprises may not be able to get the best value out of their enterprise private cloud computing infrastructure without a comprehensive cloud management solution . Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Take this new self-assessment quiz that measures the readiness of your enterprise private cloud. It scores your readiness in the following areas and discover where and how you can improve to gain total cloud control over your enterprise private cloud. Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Complete Cloud Lifecycle Solution Check if you are ready to manage all phases of the building, managing, and consuming an enterprise cloud. You will learn how Oracle can help build and manage a rich catalog of cloud services – whether it is Infrastructure-as-a-Service, Database-as-a-Service, or Platform-as-a-Service, all from a single product. Integrated Cloud Stack Management Integrated management of the entire cloud stack – all the way from application to disk, is very important to eliminate the integration pains and costs that customers would have to otherwise incur by trying to create a cloud environment by integrating multiple point solutions. Business-Driven Clouds It is critical that an enterprise Cloud platform is not only able to run applications but also has deep business insight and visibility. Oracle Enterprise Manager 12c enables creation of application-aware and business-driven clouds that has deep insight into applications, business services and transactions. As the leading providers of business applications and the middleware, we are able to offer you a cloud solution that is optimized for business services. Proactive Management Integration of the enterprise cloud infrastructure with support can allow cloud administrators to benefit from Automatic Service Requests (ASR), proactive patch recommendations, health checks and end-of-life advisory for all of the technology deployed within cloud. Learn more about solution for Enterprise Cloud and Cloud management by attending various sessions , demos and hand-on labs at Oracle Open World 2012 . Stay Connected: Twitter |  Face book |  You Tube |  Linked in |  Newsletter

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• The DevTouch Pro: New Mobile Application Development Tool Saves Developers and Managers Time and Money

  Montreal – 1 December 2010 – Amyuni Technologies, a leading vendor of high-performance development tools announced today the release of the DevTouch Pro, a revolutionary software deployment tool designed for mobile application developers. The DevTouch Pro is a color touchscreen tablet designed to provide mobile application developers and product managers with a customizable development, testing, and deployment platform.

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