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• Cuda GeForce GT 555m (on Ubuntu 12.04 (Virtual Box))

  - by bobby

  I am running Ubuntu 12.04 in a Virtual Box as guest OS. Today I have tried to enable all functions of my graphic card under Ubuntu. But all my efforts were off the mark... because my experience with Linux is relatively small... I have tried the procedure which is described as in http://sn0v.wordpress.com/2012/05/11/installing-cuda-on-ubuntu-12-04/. Running the cuda-filepack always lead to an error like "installing driver canceled". Then I have tried to install the Bumblebee project. But I always get the error that the bumblebee daemon is not started. After some internet research I found a test-command lspci -nn | grep '[030[02]]' which results in 00:02.0 VGA compatible controller [0300]: InnoTek ... [80ee:beef] I've been trying to activate the card you for hours without success. Could you please give me some hints how to activate CUDA? Kind regards

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• Facebook est désormais valorisé à 50 milliards de dollars, et dépasse Yahoo, eBay et Time Warner

  Facebook est désormais valorisé à 50 milliards de dollars, et dépasse Yahoo, eBay et Time Warner La valeur de Facebook vient de faire un grand bond en avant, malgré que la firme ne soit toujours pas présente en bourse du fait des réticences de son fondateur. En effet, la banque d'affaires Goldman Sachs vient d'investir 450 millions de dollars dans le site communautaire de Mark Zuckerberg. Mais ce n'est pas tout, le conglomérat russe Digital Sky Technologies a aussi apporté sa pierre à l'édifice en y injectant 50 millions de dollars. Deux opérations financières qui permettent à Facebook d'être désormais valorisé à hauteur de... 50 milliards de dollars ! L'entreprise ne cesse de croître, tout en s'appr...

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• Oracle's Business Analytics Strategy Webcast

  - by Rob Reynolds

  Join Mark Hurd and Balaji Yelamanchili as they unveil the latest advances in Oracle’s strategy for placing analytics into the hands of every one of your decision-makers—so that they can see more, think smarter, and act faster. Learn about the latest developments in business intelligence technology and applications, advanced analytics, performance management applications, and engineered systems. You’ll find out how you can harness the exploding volumes of data being generated inside your organization—and beyond the firewall—to: Deliver real-time intelligence to your mobile workforce globally Forecast and plan at the speed of business Accelerate your financial close and reporting process Discover how Oracle business analytics can change the way you do business. Register today for this on demand event.

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• Given a RGB color x, how to find the most contrasting color y?

  - by Arthur Wulf White

  I have to mark a certain item in a way that will make it stick-out in the background. I need it to be surrounded with the color that contrasts the background as much as possible so it will pop out and easily noticeable by the player. Lets say I know the background is color 'x', how do I find 'y' such that it will be very contrasting to 'x' and easy to notice in a background where 'x' is a dominant color? I first thought about inverting color 'x' and then I noticed that when 'x' is a medium shade of gray, if I invert 'x' to get 'y', then 'y' is also a medium shade of gray which does not work.

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• Windows RT Secured Only By Microsoft

  That disconcerting news is what Mark Hachman is reporting for Read Write Web. One can more or less safely assume that Microsoft will come up with its own antivirus software for Windows RT. Still, this is a rather unusual state of affairs; why is the company doing this? Hachman explains that apps for the Windows RT operating system can run just fine on Windows 8, but the reverse is not true, unless the Windows 8 app has been specially compiled to run on both Windows 8 and Windows RT. The difference apparently stems from the processors for which the two systems have been optimized. Windows 8 ru...

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• L'Allemagne appelle à boycotter Facebook, suite aux modifications de la politique de confidentialité

  Mise à jour du 09.04.2010 par Katleen L'Allemagne appelle à boycotter Facebook, suite aux modifications de la politique de confidentialité du site Suite à la nouvelle politique du site communautaire en matière de gestion de la vie privée (voir article précédent, ci-dessous), l'Allemagne part en croisade. Mardi, la ministre allemande de la Consommation a adressé une lettre ouvert à Mark Zuckerberg, le fondateur de Facebook. Elle y remet en cause la récente modifications des paramètres de confidentialité du réseau social. Mercredi, c'est la Fédération des organisations de consommateurs allemands (VZBZ), forte de 42 associations de défense de ses citoyens, qui a lancé un appel aux ...

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• Implementation of instance testing in Java, C++, C#

  - by Jake

  For curiosity purposes as well as understanding what they entail in a program, I'm curious as to how instance testing (instanceof/is/using dynamic_cast in c++) works. I've tried to google it (particularly for java) but the only pages that come up are tutorials on how to use the operator. How do the implementations vary across those langauges? How do they treat classes with identical signatures? Also, it's been drilled into my head that using instance testing is a mark of bad design. Why exactly is this? When is that applicable, instanceof should still be used in methods like .equals() and such right? I was also thinking of this in the context of exception handling, again particularly in Java. When you have mutliple catch statements, how does that work? Is that instance testing or is it just resolved during compilation where each thrown exception would go to?

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• What is the intention behind asking weight of plane?

  - by AKS

  I was asked this question "How would you find weight of Aeroplane" in an interview and I am not sure why this question was one of the two question asked in the interview. I tried to answer it using all possible ways but could not give the correct answer.(found the correct answer after google search) How much such questions decide your selection in the interview? Here was my approach: 1. If measurement of plane is given then i will calculate volume and multiply by density, will consider fuel weight plus other dead weight. 2. Using water displacement method if i can put plane in water and somehow measure how much water is displaced. But found using google search that right approach was to put place on a ship and mark the level of water on the hull, then remove plane and then ship will go up. And start putting weight on the ship till marked hull reaches the water level.

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• HP va-t-il s'attaquer à Microsoft ? Le constructeur va se lancer dans le Cloud Computing où il pourrait concurrencer Windows Azure

  HP va-t-il s'attaquer à Microsoft ? Le constructeur va se lancer dans le Cloud Computing où il pourrait concurrencer Windows Azure Le PDG change, la stratégie aussi. Au temps de Mark Hurd, l'alliance entre le constructeur HP et le fournisseur d'OS Microsoft était claire. Les deux sociétés complétaient leurs offres respectives avec les atouts de l'autre. Le hardware de HP et la plateforme Azure de Microsoft formaient des appliances complètes, clef-en-main, à destination des Cloud privés et des data-centers des entreprises. C'est encore théoriquement le cas aujourd'hui. Mais depu...

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• Which tool to create a sitemap to plan a future site?

  - by peterpurzelbaum

  I'd like to create a sitemap to plan a future site, and I'm looking for a tool to do it. I'd like to create a list of all articles first. Then a hierachy. Then I'd like to put the articles on several places in the hierachy. I should be able to put one article at different places. I'd like to have the ability to mark the articles in different colors whether they should come into the first version of the website or later.

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• 3 Silverlight Free Demos

  We recently added a new demo and updated 2 of our more popular Silverlight demos to use Silverlight 4 RTW (from the beta and RC bits). The Silverlight.net samples web site has all of the samples, but here are direct links to each of the demos with a brief description of them and the features they showcase. These demos are great and parts of them are from contributions from several people at Microsoft including Karen Corby, Adam Kinney, Mark Rideout, Jesse Bishop and from me. I hope you like these...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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• Fixed Bid vs. T&amp;M &ndash; Take 2

  - by AjarnMark

  One of my most popular blog entries of all time is my Contracting Tips: Fixed Bid vs. T&M post from January, 2004.  This post consistently shows up in my referrers list, usually coming from a search engine.  Recently, Brent Ozar (@BrentO) wrote a great argument for why he always bills by the hour (a.k.a. Time & Materials or T&M) which itself was a response to Mark Richman’s (@mrichman) post on why he never bills by the hour (fixed bid).  Each article has good arguments, and I encourage you to read them both and choose the best approach for you. As for me, my experience parallels Brent’s and I historically have leaned toward the Time & Materials model.

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• How to upgrade a particular package dependencies only?

  - by zerkms

  Let's say I have a package A which has Depends: B (>= 1.0.0) in its control file. The B was installed as an A dependency some time ago with 1.0.0 version. Now B was updated in the repository to the 1.0.42 version and I'd like to upgrade it. What I don't like to do: apt-get install B since it will mark B as "manually installed" (not sure how to name it correctly) package and it won't be removed with autoremove if I decide to stop using A ever. So is there an analogue of apt-get upgrade that only upgrades a particular package and its dependencies (probably recursive, it doesn't matter in my case since B doesn't depend on anything else) only?

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• Projectiles in tile mapped turn-based tactics game?

  - by Petteri Hietavirta

  I am planning to make a Laser Squad clone and I think I have most of the aspects covered. But the major headache is the projectiles shot/thrown. The easy way would be to figure out the probability of hit and just mark miss/hit. But I want to be able to have the projectile to hit something eventually (collateral damage!). Currently everything is flat 2D tile map and there would be full (wall, door) and half height (desk, chair, window) obstacles. My idea is to draw an imaginary line from the shooter to the target and add some horizontal&vertical error based on the player skills. Then I would trace the modified path until it hits something. This is basically what the original Laser Squad seems to do. Can you recommend any algorithms or other approaches for this?

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• Le premier homme infecté par un virus informatique, un scientifique anglais craint des dérives dans

  Le premier homme infecté par un virus informatique, un scientifique anglais craint des dérives dans le domaine médical Un scientifique britannique a déclaré être le premier homme au monde infecté par un virus informatique. Le docteur Mark Gasson, travaillant à l'Université de Reading, a contaminé une puce avant de se l'insérer dans la main. Ce composant à pour rôle de déverouiller les portes de sécurité pour lui en autoriser l'accès, et d'activer son téléphone mobile. Il s'agit en fait d'une puce comme celles utilisées pour identifier les animaux (généralement insérées dans leur cou), mais en plus élaboré. Lors de plusieurs expériences, le chercheur a démontré que sa puce pouvait contaminer des système...

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• What's the progress on Haskell records?

  - by mmh

  Recently I stumbled once again on the issues of Haskells records, in particular the uniqueness of field names (it's a pain ...) I already read A proposal for records in Haskell from SPJ and Greg Morrisett but it's last update was 2003. Another paper Lightweight Extensible Records for Haskell from SPJ and Mark Jones is even older: It's from a Haskell workshop in 1999. Now I wonder if the process of giving Haskell new records made any progress. Does anybody know something about it or can point me to some further reading ?

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• ASP.NET MVC 2 and Windows Azure

  If you upgrade an Azure web instance to use ASP.NET MVC 2, make sure you mark the System.Web.Mvc reference as Copy Local = true.  Otherwise, your deployment will fail.  And you wont get any good feedback from Windows Azure as to the cause of the problem.  So youll start searching the web for help, and perhaps youll stumble on this post, and youll realize that you didnt set Copy Local = true on your System.Web.Mvc assembly reference in your ASP.NET MVC 2 web instance.  And youll  leave happy (or at least slightly happier) than when you came. That is all. 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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• REGISTER NOW: FY13 LIVE Oracle PartnerNetwork Kickoff is June 26th

  - by Javier Puerta

  REGISTER NOW: FY13 LIVE Oracle PartnerNetwork Kickoff is June 26thJoin us for a live online event hosted by the Oracle PartnerNetwork team as we kickoff FY13. Hear messages from Judson Althoff, Oracle's SVP of Worldwide Alliances & Channels, as well as other Oracle executives, thought leaders, and partners. During Partner Kickoff you will see: Judson Althoff on FY12 recap and FY13 call to action Executive Addresses from Mark Hurd, Thomas Kurian, John Fowler, and Regional Sales Executives Embed, Sell and Implement the Full Portfolio Business Opportunities for ISV / OEM’s, System Integrators, and Channel Partners Q&A with Regional Alliances & Channels Executives Please register for the EMEA Partner Kickoff at the link below: Region Date / Time EMEA Tuesday, June 26th @ 15:00 CET (14:00 UK)

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• REGISTER NOW: FY13 LIVE Oracle PartnerNetwork Kickoff is June 26th

  - by Javier Puerta

  REGISTER NOW: FY13 LIVE Oracle PartnerNetwork Kickoff is June 26thJoin us for a live online event hosted by the Oracle PartnerNetwork team as we kickoff FY13. Hear messages from Judson Althoff, Oracle's SVP of Worldwide Alliances & Channels, as well as other Oracle executives, thought leaders, and partners. During Partner Kickoff you will see: Judson Althoff on FY12 recap and FY13 call to action Executive Addresses from Mark Hurd, Thomas Kurian, John Fowler, and Regional Sales Executives Embed, Sell and Implement the Full Portfolio Business Opportunities for ISV / OEM’s, System Integrators, and Channel Partners Q&A with Regional Alliances & Channels Executives Please register for the EMEA Partner Kickoff at the link below: Region Date / Time EMEA Tuesday, June 26th @ 15:00 CET (14:00 UK)

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• Do you have an address column somewhere in your database?

  - by shay.shmeltzer

  Do you have an address column somewhere in your database? If the answer is yes - then the Web seminar I'm going to run together with the guys from Navteq on May 26th, might be of interest to you. You see, we all have geographical related information in our database, but many of us don't actually use this to do any geographical type of operations/representation with it. Well once you attend the "Add Maps to Your Java Applications - the Easy Way" seminar this might change. In the seminar we'll give you a quick overview of the Spatial related capabilities of the Oracle DB, Middleware and tools. And a demo showing you how easy it is to actually get data to show up on a map in your application and to interact with it. So register today, and mark your calendar.

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• Bug Tracking Etiquette - Necromancy or Duplicate?

  - by Shauna

  I came across a really old (2+ years) feature request issue in a bug tracker for an open source project that was marked as "resolved (won't fix)" due to the lack of tools required to make the requested enhancement. In the time elapsed since that determination was made, new tools have been developed that would allow it to be resolved, and I'd like to bring that to the attention of the community for that application. However, I'm not sure as to what the generally accepted etiquette is for bug tracking in cases like this. Obviously, if the system explicitly states to not duplicate and will actively mark new items as duplicates (much in the way the SE sites do), then the answer would be to follow what the system says. But what about when the system doesn't explicitly say that, or a new user can't easily find a place that says with the system's preference is? Is it generally considered better to err on the side of duplication or necromancy? Does this differ depending on whether it's a bug or a feature request?

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• What You Said: Giving an Old Laptop a New Life

  - by Jason Fitzpatrick

  Earlier this week we asked you to share your tips and tricks for breathing life into an old laptop, now we’re back to share your junk-bin sparing methods. Many of you worked to keep old laptops from getting scrapped by dusting them off and donating them. Mark writes: My acquaintances & friends give me their old computers when they buy a new one. So I disassemble, clean, install an opsys,and get internet working. I also upgrade memory, wireless, etc. from my parts bin. Then I give it to a poor person who needs a computer. Usually a single working mom with kids. I also do the same with old desktops as well. They really appreciate them and It gives me the satisfaction of resurrecting an old computer. Wbrown does the same: How To Delete, Move, or Rename Locked Files in Windows HTG Explains: Why Screen Savers Are No Longer Necessary 6 Ways Windows 8 Is More Secure Than Windows 7

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• DotNetNuke 5.4.1 Released

  I am happy to announce the release of DotNetNuke 5.4.1 which corrects the major issues which slipped through the QA process for 5.4. While we try to do a good job in testing our releases, our recent efforts for 5.3 and 5.4 have fallen short of the mark. We are currently working with a small team of commercial module developers and the core team to put a better public beta testing process in place that will help augment our own internal testing. Ultimately, community testing is the only testing that...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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• SSIS 2012 Moving and Resizing

  - by andyleonard

  Occasionally someone will email or post a comment about how all MVPs are Microsoft shills. I’m sure I enjoy those comments about as much as the Developer Teams at Microsoft. Let me start by saying that’s simply not true. In fact, it is completely off the mark – at least when it comes to the MVPs I know and with whom I interact. If anything, we are Microsoft’s harshest critics. Just last week, I sent someone at Microsoft an email with the following complaint (paraphrased): I do not like chasing down...(read more)

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• Help Desk Software with user groups and temporary ban function?

  - by Zillo

  Does anyone know any Help Desk Software which allow you to create user groups / to mark/categorize specific users in some way / and to to ban specific users/e-mails (not user groups) for a specific period of time? Kayako? OTRS? simpledesk?... Kayako looks to be very functional but not sure if it has this option. zendesk is also very functional but a SaaS service not a downloadable software. Since the functions that I am saying are very common in forum software, maybe simpledesk could do it since it is based in SMF. Any ideas?

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