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• How important is Discrete Mathematics for a Computer Scientist?

  - by mort

  As the title says, How important is Discrete Mathematics for a Computer Scientist? Background: I'm pursuing a Master's degree with a focus on fundamentals such as Algorithms, Complexity and Computability Theory and Programming Languages to get a good foundation for working in the field of Parallel Computing. Some more background: My university grants a lot of freedom in the choices of courses for my Master's degree. It's officially called "Software Engineering", but due to a the broad range of electives, a different focus is possible. Interestingly, none of the electives is a lecture in Math! I'm thinking about doing a course about Discrete Mathematics that would take half a semester to complete successfully, even if I can't use it for my degree. So with this question I'm trying to find out if the effort is justifiable.

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• Can You Name the Top 10 Technology Trends?

  - by kellsey.ruppel

  Can You Name the Trends? No need to do the research. Come to this Webcast and find out. Join the conversation as Andy Mulholland, Global CTO, Capgemini, discusses the 10 game-changing technology trends that will enable business innovation. As you might expect, three of the trends discussed will be: Mobility: from nice-to-have to a cornerstone of user engagement Big data: how to acquire, organize, and analyze it Cloud computing: how to build applications, automate processes, collaborate, and secure the enterprise But you’ll have to attend the Webcast to learn about the other seven trends. Register now. And profit from the experience. REGISTER NOW Thurs., July 19, 201210 a.m. PT / 1 p.m. ET Presented by: Andy MulhollandGlobal CTO, Capgemini Christian FinnSenior Director, Oracle WebCenter Product Management, Oracle Copyright © 2012, Oracle. All rights reserved. Contact Us | Legal Notices and Terms of Use | Privacy Statement

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• Max Trinidad Sells PowerShell on the Puerto Rican Seashore

  - by SQLBeat

    In this episode, Max Trinidad, Powershell MVP lets me bait him into predicting the future of computing and helps me understand a thing or two about cultural misconceptions around locked men’s restrooms at busy cantinas. We are in beautiful Puerto Rico for this podcast and in honor of that, I try my hand at Espanol. I know as much Spanish as I do BizTalk Server and it shows, embarrassingly so.  Max is always happy but I make him cry on this one and I feel really horrible about it. I promise. It is my function. CLICK BELOW TO LISTEN >>>>>>>CLICK HERE TO LISTEN >>>>>>>>>> CLICK ABOVE TO SHARPEN YOUR CLAYMORE

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• ArchBeat Link-o-Rama for 2012-08-31

  - by Bob Rhubart

  SOA Suite 11g Asynchronous Testing with soapUI | Greg Mally Greg Mally walks you through testing asynchronous web services with the free edition of soapUI. The Role of Oracle VM Server for SPARC in a Virtualization Strategy | Matthias Pfutzner Matthias Pfutzner's overview of hardware and software virtualization basics, and the role that Oracle VM Server for SPARC plays in a virtualization strategy. Cloud Computing: Oracle RDS on AWS - Connecting with DB tools | Tom Laszewski Cloud expert and author Tom Laszewski shares brief comments about the tools he used to connect two Oracle RDS instances in AWS. Keystore Wallet File – cwallet.sso – Zum Teufel! | Christian Screen "One of the items that trips up a FMW implementation, if only for mere minutes, is the cwallet.sso file," says Oracle ACE Christian Screen. In this short post he offers information to help you avoid landing on your face. Thought for the Day "With good program architecture debugging is a breeze, because bugs will be where they should be." — David May Source: SoftwareQuotes.com

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• JavaOne San Francisco 2013 Content Catalog Live!

  - by Yolande Poirier

  There will be over 500 technical sessions, BOFs, tutorials, and hands-on labs offered. Note that "Securing Java" is a new track this year. The tracks are:  Client and Embedded Development with JavaFX Core Java Platform Edge Computing with Java in Embedded, Smart Card, and IoT Applications Emerging Languages on the Java Virtual Machine Securing Java Java Development Tools and Techniques Java EE Web Profile and Platform Technologies Java Web Services and the Cloud In the Content Catalog you can search on tracks, session types, session categories, keywords, and tags. Or, you can search for your favorite speakers to see what they’re presenting this year. And, directly from the catalog, you can share sessions you’re interested in with friends and colleagues through a broad array of social media channels. Start checking out JavaOne content now to plan your week at the conference. Then, you’ll be ready to sign up for all of your sessions when the scheduling tool goes live.

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• Live Webcast, Dec. 6: Enterprise Clouds with Oracle VM

  - by Monica Kumar

  Mark your calendar! On Tuesday, Dec. 6th at 9am PT, we are hosting a live webcast with Oracle VM experts. Enterprise Clouds with Oracle VM Tuesday, Dec. 6 at 9 AM US PT The ability to create a cloud leveraging public or private infrastructure has been hampered by the lack of availability of practical, cost-effective choices for server virtualization. In this session, you will learn how Oracle provides a single virtualization solution for your entire infrastructure, and how Oracle Enterprise Manager and Oracle Virtual Assembly Builder help you manage Oracle Applications across the cloud. Also find out how virtualization was leveraged to transform IT for Oracle University and support more than 350,00 students in more than 40,000 classes each year. Those lessons have paved the path to private cloud computing inside Oracle. Speakers: Adam Hawley, Senior Director of Product Management, Oracle Dan Herrup, Principal Systems Engineer, Oracle Corporate Citizenship Register Now.

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• Announcing Solaris Technical Track at NLUUG Spring Conference on Operating Systems

  - by user9135656

  The Netherlands Unix Users Group (NLUUG) is hosting a full-day technical Solaris track during its spring 2012 conference. The official announcement page, including registration information can be found at the conference page.This year, the NLUUG spring conference focuses on the base of every computing platform; the Operating System. Hot topics like Cloud Computing and Virtualization; the massive adoption of mobile devices that have their special needs in the OS they run but that at the same time put the challenge of massive scalability onto the internet; the upspring of multi-core and multi-threaded chips..., all these developments cause the Operating System to still be a very interesting area where all kinds of innovations have taken and are taking place.The conference will focus specifically on: Linux, BSD Unix, AIX, Windows and Solaris. The keynote speech will be delivered by John 'maddog' Hall, infamous promotor and supporter of UNIX-based Operating Systems. He will talk the audience through several decades of Operating Systems developments, and share many stories untold so far. To make the conference even more interesting, a variety of talks is offered in 5 parallel tracks, covering new developments in and  also collaboration  between Linux, the BSD's, AIX, Solaris and Windows. The full-day Solaris technical track covers all innovations that have been delivered in Oracle Solaris 11. Deeply technically-skilled presenters will talk on a variety of topics. Each topic will first be introduced at a basic level, enabling visitors to attend to the presentations individually. Attending to the full day will give the audience a comprehensive overview as well as more in-depth understanding of the most important new features in Solaris 11.NLUUG Spring Conference details:* Date and time:        When : April 11 2012        Start: 09:15 (doors open: 8:30)        End  : 17:00, (drinks and snacks served afterwards)* Venue:        Nieuwegein Business Center        Blokhoeve 1             3438 LC Nieuwegein              The Nederlands          Tel     : +31 (0)30 - 602 69 00        Fax     : +31 (0)30 - 602 69 01        Email   : [email protected]        Route   : description - (PDF, Dutch only)* Conference abstracts and speaker info can be found here.* Agenda for the Solaris track: Note: talks will be in English unless marked with 'NL'.1.      Insights to Solaris 11         Joerg Moellenkamp - Solaris Technical Specialist         Oracle Germany2.      Lifecycle management with Oracle Solaris 11         Detlef Drewanz - Solaris Technical Specialist         Oracle Germany3.      Solaris 11 Networking - Crossbow Project        Andrew Gabriel - Solaris Technical Specialist        Oracle UK4.      ZFS: Data Integrity and Security         Darren Moffat - Senior Principal Engineer, Solaris Engineering         Oracle UK5.      Solaris 11 Zones and Immutable Zones (NL)         Casper Dik - Senior Staff Engineer, Software Platforms         Oracle NL6.      Experiencing Solaris 11 (NL)         Patrick Ale - UNIX Technical Specialist         UPC Broadband, NLTalks are 45 minutes each.There will be a "Solaris Meeting point" during the conference where people can meet-up, chat with the speakers and with fellow Solaris enthousiasts, and where live demos or other hands-on experiences can be shared.The official announcement page, including registration information can be found at the conference page on the NLUUG website. This site also has a complete list of all abstracts for all talks.Please register on the NLUUG website.

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• Q-Tec Webcam 100 (093a:2460) video quality is horrible at best

  - by Sir Emeth

  I just bought a new usb webcam for my desktop setup of Ubuntu Natty Narwhal. I plugged it in, started up Cheese, and saw my smiling face. But it was green and lined, very poor quality overall. I am skeptical that this is due to a poor quality webcam. :P I tried it in Skype, Google+, and Gchat, but all of those showed only a black screen. They recognized the webcam as present, but showed no stream from it. Kamoso showed a black screen as well, and Camorama had even poorer quality than Cheese. Here are the details for the webcam from lsusb: Bus 001 Device 005: ID 093a:2460 Pixart Imaging, Inc. Q-TEC WEBCAM 100 Am I missing a driver, or are there settings somewhere I need to tweak?

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• C# or .Net features to cut off assuming no backward compatibility needed?

  - by Gulshan

  Any product or framework evolves. Mainly it's done to catch up the needs of it's users, leverage new computing powers and simply make it better. Sometimes the primary design goal also changes with the product. C# or .net framework is no exception. As we see, the present day 4th version is very much different comparing with the first one. But thing comes as a barricade to this evolution- backward compatibility. In most of frameworks/products there are features would have been cut off if there was no need to support backward compatibility. According to you, what are these features in C#/.net? Please mention one feature per answer.

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• Customizing JBar for Notifications

  - by Ryan Ohs

  Lately I've been using JBar, a very neat jQuery plugin for displaying notifications in my web applications. Unfortunately the original version of JBar only supports binding to the click event of a DOM item. In order to get around this limitation I have modified the source code and posted an updated version on my GitHub account here. The modified version allows you to display a JBar notification by calling a method. I typically use it to display succes or failure messages when doing Ajax calls. I have also included some additional CSS and JS so that you can diplay different styles of notifications. showNotification(message) shows a green "success" message. showWarning(message) shows an orange "warning" message. showMessage(message, className) allows you to specify a custom class to apply to the notification for additional styling purposes. A web page with samples is included.   Get the code here.

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• Is your company thinking of transitioning from java to another technology?

  - by Augusto

  As every Java developer knows, Oracle bought Sun and the future of java looks quite unclear, specially since Oracle wants to monetize the JVM. Java as a language has also been stale in the last few years, the non-inclusion of closures is one example (which might be included in java 1.8) At the same time, some new technologies such as Ruby, Scala and Groovy are being used to deliver complex sites. I'm wondering if there are companies or organizations which are talking, doing spikes or starting to use a different technology, with the idea to stop using java for green field projects, in the same way that 15 years ago companies migrated form C++, perl and other technologies to Java. I'm also interested to know what are the impressions of this happening, for example: planning to migrate to a different technology in 2 years. To be clear, I'm not asking which technology is better. I'm asking if your organization is thinking to leave Java for another technology.

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• Le prix Turing pour un chercheur de légende, Google et Intel applaudissent ce « Nobel de l'informati

  Un chercheur légendaire reçoit le prix Turing Google et Intel applaudissent ce "Nobel de l'informatique" remis à un employé de Microsoft Qui a inventé la métaphore du "bureau" d'un PC ? Qui a introduit le premier la notion d'interface graphique pour le dit bureau ? Qui a créé la première barre des taches ? Qui, en somme, a inventé le "prototype des ordinateurs personnels de réseau" ? Un seul et même homme : Chuck Thacker. Pour tous ses travaux précurseurs qui ont façonné ce que sont les ordinateurs d'aujourd'hui, la ACM (Association for Computing Machinery) vient de lui décerner le prestigieux Prix Turing, équivalent du Prix Nobel dans l...

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• C# Tip - Rendering HTML in a Gridview cell

  - by BobPalmer

  Just a quick tip for working with the gridview in ASP.Net.  If your data column contains HTML text, you've probably seen something like this in your gridview after pulling the data: <font color="red">First Item</font><br/><font color="green">Second Item</font><br/><font color="blue">Third Item</font> To have the relevant column render in HTML, just go to your gridview property pages, find the column you need rendered in HTML, and click 'convert this Field into a TemplateField'.  The result is that as a template field, HTML within your bound data value will be rendered properly.  So our example above would transform into: First Item Second Item Third Item I primarily use this technique for enabling HTML content in comment fields, and to insert line breaks when building the data for these fields. Hope this helps out! -Bob

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• Why don't Normal maps in tangent space have a single blue color?

  - by seahorse

  Normal maps are predominantly blue in color because the z component maps to Blue and since normals point out of the surface in the z direction we see Blue as the predominant component. If the above is true then why are normal maps just of one color i.e. blue and they should not be having any other shades(not even shades of blue) Since by definition tangent space is perpendicular to normal at any point we should have the normal always pointing in the Z (Blue direction) with no X(Red component) and Y(Green component). Thus the normal map(since it is a "normal map") should have had color of normals which is just the Blue(Z =Blue compoennt = 1, R=0, G=0) and the normal map should have been of only Blue color with no shades in between. But even then normal maps are not so, and they have gradients of shades in them, why is this so?

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• JavaOne - Java SE Embedded Booth - Servergy Micro Server

  - by David Clack

  Hi All,  So it's been awhile, I've been working with all the ARM and Power Architecture partners we have now on testing Java SE Embedded. We will have a Java SE Embedded for ARM and PPC at Java One next week, I'll be bringing in some of the great ARM and PPC systems to demonstrate.  The first system I'd like to tell you about is a really cool 8 core Power Architecture Micro Server from a company in Dallas called Servergy. Java One will be it's first public outing, Bill Mapp the CEO will be doing a talk at the Java Embedded @ JavaOne conference in the Hotel Nikko, right next door to the JavaOne show in the Hilton. To read more about Servergy https://www.linux.com/news/enterprise/cloud-computing/641488-linux-based-servergy-advances-data-center-efficiency http://www.servergy.com/ If you are registered at JavaOne you can come over to the Java Embedded @ JavaOne for $100 Come see us in booth 5605 See you there Dave

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• How do I properly use multithreading with Nvidia PhysX?

  - by xcrypt

  I'm having a multithreading problem with Nvidia PhysX. the SDK requires that you call Simulate() (starts computing new physics positions within a new thread) and FetchResults() (waits 'till the physics computations are done). Inbetween Simulate() and FetchResults() you may not "compute new physics". It is proposed (in a sample) that we create a game loop as such: Logic (you may calculate physics here and other stuff) Render + Simulate() at start of Render call and FetchResults at end of Render() call However, this has given me various little errors that stack up: since you actually render the scene that was computed in the previous iteration in the game loop. Does anyone have a solution to this?

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• Microsoft : "Nous allons renouveler l'intégralité de notre gamme serveurs", entretien autour de SQL Server 2012

  [IMG]http://ftp-developpez.com/gordon-fowler/SQLServer2012.png[/IMG] Microsoft se montre très ambitieux pour SQL Server 2012 et sa Division Serveur et Plateforme. TCO très agressifs, simplification des licences, Big Data, BI, Clouds Privés, intégration de Hadoop, démocratisation de Azure, les sujets à aborder ne manquaient pas. Entretien avec Jérôme Trédan, Directeur des Produits Serveurs et Plateformes de Cloud Computing, Microsoft FranceDeveloppez.com : Pouvez-vous nous resituer la Division Serveur et Plateforme de Microsoft en quelques chiffres ? Jérôme Trédan : Cette branche de Microsoft regroupe trois grandes familles de produits : les technologies pour la réalisation de Cloud privés ...

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• ORACLE Cloud Summits

  - by Thomas Leopold

    Next Generation of Enterprise Cloud Computing     Markieren Sie sich den Termin für Ihren Oracle Enterprise Cloud Summit. 02. März 2011 in Hannover 03. März 2011 in Hannover 15. März 2011 in Frankfurt 22. März 2011 in München Bei Rückfragen schreiben Sie einfach eine E-Mail an [email protected].   Copyright © 2011, Oracle and/or its affiliates.All rights reserved. Contact Us | Legal Notices and Terms of Use | Privacy Statement

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• E-Business Suite R12 Certified on 2012 Hyper-V Windows Guests

  - by John Abraham

  Oracle E-Business Suite Release 12 (12.1) is now certified on Windows Server 2008 (32-bit) and Windows Server 2008 R2 running as guest operating systems within Window Server 2012 Hyper-V virtual machines. Hyper-V is a built-in feature of Microsoft Windows Server that allows for the creation and management of virtualized computing environments. With this certification, the E-Business Suite is now supported on the above Windows virtualized guest operating systems in a similar way to non-virtualized Windows. References Note 761567.1 - Oracle E-Business Suite Installation and Upgrade Notes Release 12 (12.1.1) for Microsoft Windows Server (32-bit) Note 1188535.1 - Migrating Oracle E-Business Suite R12 to Microsoft Windows Server 2008 R2 Note 1563794.1 - Certified Software on Microsoft Windows Server 2012 Hyper-V Windows Server Hyper-V Overview

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• CUDA instructions ask to stop GDM but it doesn't exist

  - by Gabs

  I am trying to install and run some CUDA exemples in Ubuntu 12.04. First of all, I downloaded all .run files from http://developer.nvidia.com/cuda-downloads, then followed the instructions at http://developer.nvidia.com/nvidia-gpu-computing-, until I got hung up on the first step: Exit the GUI if you are in a GUI environment by pressing Ctrl-Alt-Backspace. Some distributions require you to press this sequence twice in a row; others have disabled it altogether in favor of a command such as sudo /etc/init.d/gdm stop . Still others require changing the system runlevel using a command such as /sbin/init 3 to exit the GUI. When I type the command sudo /etc/init.d/gdmstop, it returns: gdm command not found Can anybody help me exit my GUI in order to continue? Thank you in advance.

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• Windows Azure Platform TCO/ROI Analysis Tool

  - by kaleidoscope

  Microsoft have released a tool to help you figure out how much money you can save by switching to Windows Azure from your on-premises solution. The tool will provide you with a customized estimate of potential cost savings you (or your company or organization) may achieve by building on the Windows Azure Platform. Upon completion of the TCO and ROI Calculator profile analysis, you will be presented with a detailed report which shows estimated line item costs for an accurate TCO and a 1 to 3 year ROI analysis for you or your company or organization. You should not interpret the analysis report you receive as a part of this process to be a commitment on the part of Microsoft, and Microsoft makes no guarantees regarding the accuracy of any information presented in the report. You should not view the results of this report as a substitute for engaging with a third party expert to independently evaluate you or your company’s specific computing needs. The analysis report you will receive is for informational purposes only. For more information check this link. Geeta, G

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• Visual Studio 2010 & Windows Azure Launch

  If youre involved in any capacity with software development, or want to understand more about cloud computing, this is a half-day event not to be missed. Come along to the official New Zealand launch of Visual Studio 2010 and Windows Azure. Weve lined up two international experts, Sam Guckenheimer and David Chappell to deliver our two keynote sessions. Plus, to mark the occasion, were producing a very cool retro t-shirt for all attendees,...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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• Is Data Science “Science”?

  - by BuckWoody

  I hold the term “science” in very high esteem. I grew up on the Space Coast in Florida, and eventually worked at the Kennedy Space Center, surrounded by very intelligent people who worked in various scientific fields. Recently a new term has entered the computing dialog – “Data Scientist”. Since it’s not a standard term, it has a lot of definitions, and in fact has been disputed as a correct term. After all, the reasoning goes, if there’s no such thing as “Data Science” then how can there be a Data Scientist? This argument has been made before, albeit with a different term – “Computer Science”. In Peter Denning’s excellent article “Is Computer Science Science” (April  2005/Vol. 48, No. 4 COMMUNICATIONS OF THE ACM) there are many points that separate “science” from “engineering” and even “art”.  I won’t repeat the content of that article here (I recommend you read it on your own) but will leverage the points he makes there. Definition of Science To ask the question “is data science ‘science’” then we need to start with a definition of terms. Various references put the definition into the same basic areas: Study of the physical world Systematic and/or disciplined study of a subject area ...and then they include the things studied, the bodies of knowledge and so on. The word itself comes from Latin, and means merely “to know” or “to study to know”. Greek divides knowledge further into “truth” (episteme), and practical use or effects (tekhne). Normally computing falls into the second realm. Definition of Data Science And now a more controversial definition: Data Science. This term is so new and perhaps so niche that the major dictionaries haven’t yet picked it up (my OED reference is older – can’t afford to pop for the online registration at present). Researching the term's general use I created an amalgam of the definitions this way: “Studying and applying mathematical and other techniques to derive information from complex data sets.” Using this definition, data science certainly seems to be science - it's learning about and studying some object or area using systematic methods. But implicit within the definition is the word “application”, which makes the process more akin to engineering or even technology than science. In fact, I find that using these techniques – and data itself – part of science, not science itself. I leave out the concept of studying data patterns or algorithms as part of this discipline. That is actually a domain I see within research, mathematics or computer science. That of course is a type of science, but does not seek for practical applications. As part of the argument against calling it “Data Science”, some point to the scientific method of creating a hypothesis, testing with controls, testing results against the hypothesis, and documenting for repeatability.  These are not steps that we often take in working with data. We normally start with a question, and fit patterns and algorithms to predict outcomes and find correlations. In this way Data Science is more akin to statistics (and in fact makes heavy use of them) in the process rather than starting with an assumption and following on with it. So, is Data Science “Science”? I’m uncertain – and I’m uncertain it matters. Even if we are facing rampant “title inflation” these days (does anyone introduce themselves as a secretary or supervisor anymore?) I can tolerate the term at least from the intent that we use data to study problems across a wide spectrum, rather than restricting it to a single domain. And I also understand those who have worked hard to achieve the very honorable title of “scientist” who have issues with those who borrow the term without asking. What do you think? Science, or not? Does it matter?

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• IBM simule le cerveau d'un singe avec son supercalculateur Blue Gene/Q qui a émulé 530 milliards de neurones

  IBM simule le cerveau d'un singe avec son supercalculateur Blue Gene/Q qui a émulé 530 milliards de neurones IBM vient de réaliser de nouvelles prouesses dans le domaine de l'intelligence artificielle. La division de recherche de la société a simulé avec succès 530 milliards de neurones dans un réseau basé sur le modèle CoCoMac (connectivité structurelle dans le cerveau d'un singe). Le système est basé sur le supercalculateur IBM Blue Gene/Q du laboratoire de recherche Livermore Lawrence. Ce système comprend 1 024 « compute nodes » par armoire et 17 noyaux de processus par « compute nodes », reposant sur l'architecture IBM TrueNorth Cognitive Computing. Le...

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• Oracle will be a Bronze Sponsor of Grace Hopper Celebration of Women in Cmputing

  - by bubbva

  Oracle is proud to be a Bronze Sponsor at the upcoming Grace Hopper Celebration of Women in Computing from October 3-6, 2012 in Baltimore, MD. Oracle's Women's Leadership group, Oracle's Diversity & Inclusion program and Product Development are proud to be behind this sponsorship.Several women from Oracle will be presenting and participating at the conference: Industry Track: "From Engineer to Executive; The Path Forward", speaker Susan Zwinger VP, Global Systems Technology Service Center Industry Track: "Are We There Yet? Finding Your Career Sweet Spot", speaker Gilda Garreton, Principal Software Engineer Birds of a feather:  "Juggling Our Different Worlds", speaker Gilda Garreton New Investigator Co-Chair, Gilda Garreton Communities Committee Co-Chair, Valerie Fenwick, Manager Software Development "Considering a shift in career from Technical towards Management?" table host,  Valerie Fenwick Oracle will have a booth as well, so stop by and introduce yourself!

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