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  • What are your suggestions on learning how to think?

    - by Jonathan Khoo
    First of all, this is not the generic 'make me a better programmer' question, even though the outcome of asking this question might seem similar to it. On programmers.SE, I've read and seen these get closed here, here, here, here, and here. We all know there are a multitude of generic suggestions to hone your programming skills (e.g reading SO, reading recommended books, following blogs, getting involved in open-source projects, etc.). This is not what I'm after. I also acknowledge the active readership on this web site and am hoping it works in my favour by yielding some great answers. From reading correspondence here, there appears to be a vast number of experienced people who are working, or have worked, programming-related fields. And most of you can convey thoughts in an eloquent, concise manner. I've recently noticed the distinction between someone who's capable of programming and a programmer who can really think. I refuse to believe that in order to become great at programmer, we simply submit ourselves to a lifetime of sponge-like behaviour (i.e absorb everything related to our field by reading, listening, watching, etc.). I would even state that simply knowing every single programming concept that allows you to solve problem X faster than everyone around you, if you can't think, you're enormously limiting yourself - you're just a fast robot. I like to believe there's a whole other face of being a great programmer which is unrelated to how much you know about programming, but it is how well you can intertwine new concepts and apply them to your programming profession or hobby. I haven't seen anyone delve into, or address, this facet of the human mind and programming. (Yes, it's also possible that I haven't looked hard enough too - sorry if that's the case.) So for anyone who has spent any time thinking about what I've mentioned above - or maybe it's everyone here because I'm a little behind in my personal/professional development - what are your suggestions on learning how to think? Aside from the usual reading, what else have you done to be better than the other people in your/our field?

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  • Bruce Lee Software development.

    - by DesigningCode
    "Styles tend to not only separate men - because they have their own doctrines and then the doctrine became the gospel truth that you cannot change. But if you do not have a style, if you just say: Well, here I am as a human being, how can I express myself totally and completely? Now, that way you won't create a style, because style is a crystallization. That way, it's a process of continuing growth."- Bruce Lee This is kind of how I see software development. What I enjoyed in the the early days of Agile, things seemed very dynamic, people were working out all manner of ways of doing things. It was technique oriented, it was very fluid and people were finding all kinds of good ways of doing things.  Now when I look at the world of “Agile” it seems more crystalized.  In fact that seemed to be a goal, to crystalize the goodness so everyone can share.   I think mainly because it seems a heck of a lot easier to market.  People are more willing to accept a well defined doctrine and drink the Kool Aid.   Its more “corporate” or “professional”. But the process of crystalizing the goodness actually makes it bad.   But luckily in the world of software development there are still many people who are more focused on “how can I express myself totally and completely”.   We are seeing expressive languages, expressive frameworks, tooling that helps you to better express yourself, design techniques that allow you to better express your intent.    I love that stuff! So beware, be very cautious of anyone offering you new age wisdom based on crystals!

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  • An XML file or Database?

    - by webnoob
    I am re-writing a section of my site and am trying to decide how much of a rewrite this will be. At the moment I have a web service feed that generates an xml once per day. I then use this xml file on my website to generate the general structure. I am trying to decide if this information should be located in the database or stay in the xml file. The file can range from 4mb - 12mb. The files depth can go on and on so I have to recurse to find the data I want. I use the .NET serializer classes and store the serialized file in a global variable to avoid re-serializing it each time the page is loaded. My reasons for thinking a database would be better are: I would know exactly where I am in the file by using an internal ID so I wouldn't have to recurse the file to get information. I wouldn't have to load / serialize the XML and could just use my already open database connections. Searching for the data in the file would be quicker(?) as I would just perform an SQL query rather than re-cursing the file. Has anyone got any ideas which is better and which option uses more resources on the server or be quicker? EDIT: The file is read every time the web page is loaded (although only serialized once). It isn't written to by standard users (only by an admin task that runs in the middle of the night). This is my initial investigation before mocking up.

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  • Expression Blend 4 available and training resources

    As you may know Expression Blend 4 has shipped! It is still part of Expression Studio, which now comes in 2 flavors: Expression Studio 4 Ultimate Expression Blend SketchFlow Expression Web + SuperPreview Expression Encoder Expression Design Expression Studio 4 Web Professional Expression Web + SuperPreview Expression Encoder Expression Design So the version you want for Silverlight is Expression Studio 4 Ultimate (because you cant...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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  • Best Way to Archive Digital Photos and Avoid Duplicate File Names

    - by user31575
    This problem pertains to archiving of digital pictures taken from multiple cameras. Answers here covered the general topic of the-mechanics-of-backups: How do you archive digital photos and videos ? I however face another problem. Having multiple cameras (canon) and multiple SD cards (mixed and matched at random), I have found that different SD cards have different photos with the same file name, i.e. two different photos each name IMG_3141.JPG. Additionally, for better or worse, I've backed up the files to multiple places and need to consolidate my backups. I want to eliminate duplicates, but not clobber files. The only way I can think of is to append the code (md5 or sha1) to the file name, i.e. IMG_3141.JPG becomes IMG_3141_KT229QZ31415926ASDF.JPG, then sorting them out Any better ways? (Note "open letter" address the 'duplicate file name' concern): http://photofocus.com/2010/09/13/an-open-letter-to-digital-camera-manufacturers-regarding-camera-file-naming/ )

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  • Step Away From That Computer! You’re Not Qualified to Use It!

    - by Michael Sorens
    Most things tend to come with warnings and careful instructions these days, but sadly not one of the most ubiquitous appliances of all, your computer. If a chainsaw is missing its instructions, you’re well advised not to use it, even though you probably know roughly how it’s supposed to work. I confess, there are days when I feel the same way about computers. Long ago, during the renaissance of the computer age, it was possible to know everything about computers. But today, it is challenging to be fully knowledgeable even in one small area, and most people aren’t as savvy as they like to think. And, if I may borrow from Edwin Abbott Abbott’s classic Flatland, that includes me. And you. Need an example of what I mean? Take a look at almost any recent month’s batch of Windows updates. Just two quick questions for you: Do you need all of those updates? Is it safe to install all of those updates? I do software design and development for a living on Windows and the .NET platform, but I will be quite candid: I often have little clue what the heck some of those updates are going to do or why they are needed. So, if you do not know why they are needed or what they do, how do you know if they are safe? Of course, one can sidestep both questions by accepting Microsoft’s recommended Windows Update setting of “install updates automatically”. That leads you to infer that you need all of them (which is not always the case) and, more significantly, that they are safe. Quite safe. Ah, lest reality intrude upon such a pretty picture! Sadly, there is no such thing as risk-free software installation, and payloads from Windows Update are no exception. Earlier this year, a Windows Secrets Patch Watch article touted this headline: Keep this troublesome kernel update on hold. It discusses KB 2862330, a security update originally published more than 4 months earlier, and yet the article still recommends not installing it! Most people simply do not have the time, resources, or interest, to go about figuring out which updates to install or postpone or skip for safety reasons. Windows Secrets Patch Watch is the best service I have encountered for getting advice, but it is still no panacea and using the service effectively requires a degree of computer literacy that I still think is beyond a good number of people. Which brings us full circle: Step Away From That Computer! You’re Not Qualified to Use It!

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  • TDD/Tests too much an overhead/maintenance burden?

    - by MeshMan
    So you've heard it many times from those who do not truly understand the values of testing. Just to start things out, I'm a follower of Agile and Testing... I recently had a discussion about performing TDD on a product re-write where the current team does not practice unit testing on any level, and probably have never heard of the dependency injection technique or test patterns/design etc (we won't even get on to clean code). Now, I am fully responsible for the rewrite of this product and I'm told that attempting it in the fashion of TDD, will merely make it a maintenance nightmare and impossible for the team maintain. Furthermore, as it's a front-end application (not web-based), adding tests is pointless, as the business drive changes (by changes they mean improvements of course), the tests will become out of date, other developers who come on to the project in the future will not maintain them and become more of a burden for them to fix etc. I can understand that TDD in a team that does not currently hold any testing experience doesn't sound good, but my argument in this case is that I can teach my practice to those around me, but further more, I know that TDD makes BETTER software. Even if I was to produce the software using TDD, and throw all the tests away on handing it over to a maintenance team, it surely would be a better approach than not using TDD at all from the start? I've been shot down as I've mentioned doing TDD on most projects for a team that have never heard of it. The thought of "interfaces" and strange looking DI constructors scares them off... Can anyone please help me in what is normally a very short conversation of trying to sell TDD and my approach to people? I usually have a very short window of argument before falling at the knees to the company/team.

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  • Fastest Functional Language

    - by Farouk
    I've recently been delving into functional programming especially Haskell and F#, the prior more so. After some googling around I could not find a benchmark comparison of the more prominent functional languages (Scala,F# etc). I know it's not necessarily fair to some of the languages (Scala comes to mind) given that they are hybrids, but I just wanna know which outperforms which on what operations and overall.

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  • ASP.NET 4.0- CompressionEnabled Property in session state 4.0

    - by Jalpesh P. Vadgama
    Hello Guys, This blog has been quite for few days. Because i was busy with some personal and professional work both and that’s why i am not able to work on writing blog posts which i have discovered in last few days. Here is one features of asp.net 4.0 that I am going to explain. As a web developer we all know about session. Without the use of session any database driven web application is incomplete. As we all know unlike windows form web forms are state less so when user interacts with web application we need to maintain state amongst web pages and we are using session for maintaining state between web pages for each users. ASP.NET is also provide same kind of session state functionalities. ASP.Net Session state identify request coming for same user and same browser for specific session time out interval and its preserves values in session for that specific time intervals and that’s help us in maintaining state amongst web pages for a specific user. ASP.NET Session state allows us to store session in three way 1. IncProc 2. Session State Service 3. SQL Server. In SQL Server mode it will store session in SQL Server tables instead of storing it in Server Memory. ASP.NET 4.0 provides a new property called Compression Enabled that means when we store values in serialized form in SQL Server with GZip Compression and that results in better performance. For that you need to store property in web.config like following. <sessionState allowCustomSqlDatabase="true" sqlConnectionString="data source=Server;Initial Catalog=aspnetsessionstatedb" compressionEnabled="true" /> That’s it now with the use of this property you can have better performance when you are storing large amount of data in session.But still you need to decide that why you want to stored large amount of data in session because its against best practices. Technorati Tags: Session,ASP.NET 4.0

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  • CodePlex Daily Summary for Monday, October 01, 2012

    CodePlex Daily Summary for Monday, October 01, 2012Popular ReleasesD3 Loot Tracker: 1.4.1: This version will automatically save a recording session on application exit if the user didn't stop the current session.CRM 2011 Visual Ribbon Editor: Visual Ribbon Editor (1.2.1001.1): Visual Ribbon Editor 1.2.1001.1 What's New: Ability to hide currently selected tab Password in the connection file is now being encrypted Esc and Enter keyboard keys are now supported in all dialogs Extended width of Prefix and Id fields in New Button and New Group dialogs Minor UI enchancements for Hide Button button Minor UI enchancements for View XML button and dialog File/assembly versioning for executable file Notes: Existing plain-text password will be automatically encrypt...Untangler: Untangler: First version of Untangler application available now.SubExtractor: Release 1029: Feature: Added option to make i and ¡ characters movie-specific for improved OCR on Spanish subs (Special Characters tab in Options) Feature: Allow switch to Word Spacing dialog directly from Spell Check dialog Fix: Added more default word spacings for accented characters Fix: Changed Word Spacing dialog to show all OCR'd characters in current sub Fix: Removed application focus grab during OCR Fix: Tightened HD subs fuzzy logic to reduce false matches in small characters Fix: Improved Arrow k...MCEBuddy 2.x: MCEBuddy 2.2.18: Reccomended download Changelog for 2.2.18 (32bit and 64bit) 1. Added support for checking if Showanalyzer has hung and cancelling it 2. New version of comskip, 0.81.48 3. Speeding up comskip 4. Fixed a build bug in 64bit 2.2.17 5. Added a new comkip.ini, better commercial detection for international channels and less aggressive. Old one has been retained as comskip_old.ini 6. Added support for Audio Offset on Conversion Task page in GUI (this overrides the profiles AudioDelay when specified)Mugen Injection: Mugen Injection 3.0: Added a generic version of the fluent syntax. Big changes in fluent-syntax. Added support to resolve a parameters: - Factory: AnyCustomFunc{T}, AnyCustomFunc{IEnumerable<IInjectionParameters>,T}, AnyCustomFunc{IDictionary<string, object>,T}, AnyCustomFunc{IEnumerable<IInjectionParameters>,IDictionary<string, object>,T} - Lazy: AnyCustomLazy<T> - Binding metadata: ISetting Change binding builders, now you can configure them through the string settings. Increase performance. F...Aggravation: Version 1.0: This version 1.0 release is pretty stable. You need the Silverlight 4 runtime, developer tools, and Experssion Blend 4 installed.Tube++: Tube++ 4.0.0.43: Fix parser for downloading and add new default slate gray styleReadable Passphrase Generator: KeePass Plugin 0.7.1: See the KeePass Plugin Step By Step Guide for instructions on how to install the plugin. Changes Built against KeePass 2.20Windows 8 Toolkit - Charts and More: Beta 1.0: The First Compiled Version of my LibraryCatchThatException: Release 1.0: This is the first relase for CatchThatException library at 29-9-2012CardPlay: a Solitaire Framework for .Net: 0.3.0: Added 5 games: Blockade, Chessboard, Colorado, Sly Fox, TwentyUltraFluid Modeling Suite: Beta 1: This release is experimental but contains a lot of features like: - xml serialization - multiple selection - clipboard copy/cut/paste on context menu There is the debug and the release (recommanded default) versions.PDF.NET: PDF.NET.Ver4.5-OpenSourceCode: PDF.NET Ver4.5 ????,????Web??????。 PDF.NET Ver4.5 Open Source Code,include a sample Web application project.Visual Studio Icon Patcher: Version 1.5.2: This version contains no new images from v1.5.1 Contains the following improvements: Better support for detecting the installed languages The extract & inject commands won’t run if Visual Studio is running You may now run in extract or inject mode The p/invoke code was cleaned up based on Code Analysis recommendations When a p/invoke method fails the Win32 error message is now displayed Error messages use red text Status messages use green textZXing.Net: ZXing.Net 0.9.0.0: On the way to a release 1.0 the API should be stable now with this version. sync with rev. 2393 of the java version improved api better Unity support Windows RT binaries Windows CE binaries new Windows Service demo new WPF demo WindowsCE Hotfix: Fixes an error with ISO8859-1 encoding and scannning of QR-Codes. The hotfix is only needed for the WindowsCE platform.C.B.R. : Comic Book Reader: CBR 0.7: Synthesis since 0.6 : ePUB : Complete refactoring Add a new dedicated feed viewer for opds stream PDF conversion : improved with image merge Make all backstage panel scrollable Integrate the new AvalonDock 2 library. Support multi-document. Library explorer and Table of content are now toolboxes Designer for dynamic books is now mvvm and much better New BrowserForControl Customized xps viewer to suppress toolbars and bind it to cbr commands Add quick start manual and button ...sosoft: sosoft source: sosoft source include alarm clockRawr: Rawr 5.0.0: This is the Downloadable WPF version of Rawr!For web-based version see http://elitistjerks.com/rawr.php You can find the version notes at: http://rawr.codeplex.com/wikipage?title=VersionNotes Rawr Addon (NOT UPDATED YET FOR MOP)We now have a Rawr Official Addon for in-game exporting and importing of character data hosted on Curse. The Addon does not perform calculations like Rawr, it simply shows your exported Rawr data in wow tooltips and lets you export your character to Rawr (including ba...Coevery - Free CRM: Coevery 1.0.0.26: The zh-CN issue has been solved. We also add a project management module.New ProjectsAmazonGlacierGUI - GUI Client for Amazon Glacier | WPF: a GUI client for amazon glacier , Written in .NET 4, C#,WPF,MVVM & RavenDB for storageAthene: UML editor.Basic Helpdesk Application: Develop a simple application to be used in a network environment to aid support staff while working remotely with users to resolve problems in their local PC.CAPTCHA Solver: CSolver, is a CAPTCHA Solver for Simple CAPTCHAs.ComicExt: ComicExt Works with CBZ files decompress them into a folder of the same name and convert them into zip files and vice versa from a single folder.Copy Your Table Storage: Tool to permit copy table storage dotCMS: it is a content management system base on BlogEngine.NET and Ext.NETihongma??: ?????????????????????????,????????????????、??????,?????????????????????????????,??????????????????????。 ??????????????,??????;???????????????,???????Liam F: Basic mathematical functions implemented using AVX/AVX2MVC Solution: MVC Solution, including many mvc best practicesopengltest: opengl testsample project: Testing...Sériethèque: A small tvshow organizer with viewed option, link to addict7ed.com, rename file etc ...SHOIC (SUPER HIGH ORBIT ION CANION): SHOIC (Super Hight Orbit Ion Canion) es una aplicación derivada de LOIC (Low Orbit Ion Canion)SignalRServerTry: signal r trySilverlight Datagrid Plus: Silverlight Datagrid plus adds basic features to the Silverlight toolkit datagrid such as grouping, filtering, new record and formatting of the datagrid.Sitecore Modules: This is a home for all the Sitecore Shared Source modules distributed by 5 Limes. Over time we expect this solution to contain several projects.Spiritual Chanting Utility: A quick media loop utilitySQL Web Studio Pad: A Simple Web Based SQL Management IDE for managing Database objectsStockmarket Simulation: Stockmarket Simulationtest_proj: ok testTISSEAN.NET: This project is based on: TISEAN 3.0.1 Nonlinear Time Series Analysis Rainer Hegger,Holger Kantz, Thomas Schreiber With major contributions by Eckehard OlbrichUntangler: Class hierarchy viewer for .Net assemblyValarmathi Hospital: Patient management.Windows 8 App For SharePoint Online: Windows 8 app to SharePoint 2013 OnlineWPF Anti-DataBinding Anti-DataTemplate Extensions: WPF Anti-DataBinding Anti-DataTemplate Extensions offers a pure C# code-behind (no XAML) approach to working with WPF controls, starting with the WPF ListBox.Yandex Positions Parser: ?????? ??????? ????? ? ?????? ??????? ?? ???????? ???????? ??????.YunCMS: A simple CMS for build protal site.

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  • What installation size should i use?

    - by Patrick
    I am installing Ubuntu with the Windows installer, however I am using Windows 8. I need to know if there will be problems with installing it using Windows 8, and I need to know which installation size I should use........4gb....18gb....etc. Also, is it possible to actually install it on a usb drive? the option was available in the installation, but i was not sure if it was safe or not. I would really appreciate some answers.

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  • What is the best strategy for transforming unicode strings into filenames?

    - by David Cowden
    I have a bunch (thousands) of resources in an RDF/XML file. I am writing a certain subset of the resources to files -- one file for each, and I'm using the resource's title property as the file name. However, the titles are every day article, website, and blog post titles, so they contain characters unsafe for a URI (the necessary step for constructing a valid file path). I know of the Jersey UriBuilder but I can't quite get it to work for my needs as I detailed in a different question on SO. Some possibilities I have considered are: Since each resource should also have an associated URL, I could try to use the name of the file on the server. The down side of this is sometimes people don't name their content logically and I think the title of an article better reflects the content that will be in each text file. Construct a white list of valid characters and parse the string myself defining substitutions for unsafe characters. The downside of this is the result could be just as unreadable as the former solution because presumably the content creators went through a similar process when placing the files on their server. Choose a more generic naming scheme, place the title in the text file along with the other attributes, and tell my boss to live with it. So my question here is, what methods work well for dealing with a scenario where you need to construct file names out of strings with potentially unsafe characters? Is there a solution that better fills out my constraints?

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  • SQL Azure vs. SQL Server

    If youd like to know the differences between SQL Server and SQL Azure, check this white paper. This FAQ is also interesting. var addthis_pub="guybarrette";...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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  • Microsoft&rsquo;s new technical computing initiative

    - by Randy Walker
    I made a mental note from earlier in the year.  Microsoft literally buys computers by the truckload.  From what I understand, it’s a typical practice amongst large software vendors.  You plug a few wires in, you test it, and you instantly have mega tera tera flops (don’t hold me to that number).  Microsoft has been trying to plug away at their cloud services (named Azure).  Which, for the layman, means Microsoft runs your software on their computers, and as demand increases you can allocate more computing power on the fly. With this in mind, it doesn’t surprise me that I was recently sent an executive email concerning Microsoft’s new technical computing initiative.  I find it to be a great marketing idea with actual substance behind their real work.  From the programmer academic perspective, in college we dreamed about this type of processing power.  This has decades of computer science theory behind it. A copy of the email received.  (note that I almost deleted this email, thinking it was spam due to it’s length) We don't often think about how complex life really is. Take the relatively simple task of commuting to and from work: it is, in fact, a complicated interplay of variables such as weather, train delays, accidents, traffic patterns, road construction, etc. You can however, take steps to shorten your commute - using a good, predictive understanding of a few of these variables. In fact, you probably are already taking these inputs and instinctively building a predictive model that you act on daily to get to your destination more quickly. Now, when we apply the same method to very complex tasks, this modeling approach becomes much more challenging. Recent world events clearly demonstrated our inability to process vast amounts of information and variables that would have helped to more accurately predict the behavior of global financial markets or the occurrence and impact of a volcano eruption in Iceland. To make sense of issues like these, researchers, engineers and analysts create computer models of the almost infinite number of possible interactions in complex systems. But, they need increasingly more sophisticated computer models to better understand how the world behaves and to make fact-based predictions about the future. And, to do this, it requires a tremendous amount of computing power to process and examine the massive data deluge from cameras, digital sensors and precision instruments of all kinds. This is the key to creating more accurate and realistic models that expose the hidden meaning of data, which gives us the kind of insight we need to solve a myriad of challenges. We have made great strides in our ability to build these kinds of computer models, and yet they are still too difficult, expensive and time consuming to manage. Today, even the most complicated data-rich simulations cannot fully capture all of the intricacies and dependencies of the systems they are trying to model. That is why, across the scientific and engineering world, it is so hard to say with any certainty when or where the next volcano will erupt and what flight patterns it might affect, or to more accurately predict something like a global flu pandemic. So far, we just cannot collect, correlate and compute enough data to create an accurate forecast of the real world. But this is about to change. Innovations in technology are transforming our ability to measure, monitor and model how the world behaves. The implication for scientific research is profound, and it will transform the way we tackle global challenges like health care and climate change. It will also have a huge impact on engineering and business, delivering breakthroughs that could lead to the creation of new products, new businesses and even new industries. Because you are a subscriber to executive e-mails from Microsoft, I want you to be the first to know about a new effort focused specifically on empowering millions of the world's smartest problem solvers. Today, I am happy to introduce Microsoft's Technical Computing initiative. Our goal is to unleash the power of pervasive, accurate, real-time modeling to help people and organizations achieve their objectives and realize their potential. We are bringing together some of the brightest minds in the technical computing community across industry, academia and science at www.modelingtheworld.com to discuss trends, challenges and shared opportunities. New advances provide the foundation for tools and applications that will make technical computing more affordable and accessible where mathematical and computational principles are applied to solve practical problems. One day soon, complicated tasks like building a sophisticated computer model that would typically take a team of advanced software programmers months to build and days to run, will be accomplished in a single afternoon by a scientist, engineer or analyst working at the PC on their desktop. And as technology continues to advance, these models will become more complete and accurate in the way they represent the world. This will speed our ability to test new ideas, improve processes and advance our understanding of systems. Our technical computing initiative reflects the best of Microsoft's heritage. Ever since Bill Gates articulated the then far-fetched vision of "a computer on every desktop" in the early 1980's, Microsoft has been at the forefront of expanding the power and reach of computing to benefit the world. As someone who worked closely with Bill for many years at Microsoft, I am happy to share with you that the passion behind that vision is fully alive at Microsoft and is carried out in the creation of our new Technical Computing group. Enabling more people to make better predictions We have seen the impact of making greater computing power more available firsthand through our investments in high performance computing (HPC) over the past five years. Scientists, engineers and analysts in organizations of all sizes and sectors are finding that using distributed computational power creates societal impact, fuels scientific breakthroughs and delivers competitive advantages. For example, we have seen remarkable results from some of our current customers: Malaria strikes 300,000 to 500,000 people around the world each year. To help in the effort to eradicate malaria worldwide, scientists at Intellectual Ventures use software that simulates how the disease spreads and would respond to prevention and control methods, such as vaccines and the use of bed nets. Technical computing allows researchers to model more detailed parameters for more accurate results and receive those results in less than an hour, rather than waiting a full day. Aerospace engineering firm, a.i. solutions, Inc., needed a more powerful computing platform to keep up with the increasingly complex computational needs of its customers: NASA, the Department of Defense and other government agencies planning space flights. To meet that need, it adopted technical computing. Now, a.i. solutions can produce detailed predictions and analysis of the flight dynamics of a given spacecraft, from optimal launch times and orbit determination to attitude control and navigation, up to eight times faster. This enables them to avoid mistakes in any areas that can cause a space mission to fail and potentially result in the loss of life and millions of dollars. Western & Southern Financial Group faced the challenge of running ever larger and more complex actuarial models as its number of policyholders and products grew and regulatory requirements changed. The company chose an actuarial solution that runs on technical computing technology. The solution is easy for the company's IT staff to manage and adjust to meet business needs. The new solution helps the company reduce modeling time by up to 99 percent - letting the team fine-tune its models for more accurate product pricing and financial projections. Our Technical Computing direction Collaborating closely with partners across industry and academia, we must now extend the reach of technical computing even further to help predictive modelers and data explorers make faster, more accurate predictions. As we build the Technical Computing initiative, we will invest in three core areas: Technical computing to the cloud: Microsoft will play a leading role in bringing technical computing power to scientists, engineers and analysts through the cloud. Existing high- performance computing users will benefit from the ability to augment their on-premises systems with cloud resources that enable 'just-in-time' processing. This platform will help ensure processing resources are available whenever they are needed-reliably, consistently and quickly. Simplify parallel development: Today, computers are shipping with more processing power than ever, including multiple cores, but most modern software only uses a small amount of the available processing power. Parallel programs are extremely difficult to write, test and trouble shoot. However, a consistent model for parallel programming can help more developers unlock the tremendous power in today's modern computers and enable a new generation of technical computing. We are delivering new tools to automate and simplify writing software through parallel processing from the desktop... to the cluster... to the cloud. Develop powerful new technical computing tools and applications: We know scientists, engineers and analysts are pushing common tools (i.e., spreadsheets and databases) to the limits with complex, data-intensive models. They need easy access to more computing power and simplified tools to increase the speed of their work. We are building a platform to do this. Our development efforts will yield new, easy-to-use tools and applications that automate data acquisition, modeling, simulation, visualization, workflow and collaboration. This will allow them to spend more time on their work and less time wrestling with complicated technology. Thinking bigger There is so much left to be discovered and so many questions yet to be answered in the fascinating world around us. We believe the technical computing community will show us that we have not seen anything yet. Imagine just some of the breakthroughs this community could make possible: Better predictions to help improve the understanding of pandemics, contagion and global health trends. Climate change models that predict environmental, economic and human impact, accessible in real-time during key discussions and debates. More accurate prediction of natural disasters and their impact to develop more effective emergency response plans. With an ambitious charter in hand, this new team is ready to build on our progress to-date and execute Microsoft's technical computing vision over the months and years ahead. We will steadily invest in the right technologies, tools and talent, and work to bring together the technical computing community. I invite you to visit www.modelingtheworld.com today. We welcome your ideas and feedback. I look forward to making this journey with you and others who want to answer the world's biggest questions, discover solutions to problems that seem impossible and uncover a host of new opportunities to change the world we live in for the better. Bob

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  • For kvm host images. GFS2 or OCFS2 with drbd8?

    - by yvess
    I want a shared filesystem on top of drbd8 on two nodes. The servers run ubuntu 9.10. I googled a lot, but couldn't find an clear trend what the web community prefers. It's seems that OCFS2 is more used at the moment. Which filesystem is more reliable, faster? GFS2 or OCFS2? Is the linux community going more towards GFS2 or OCFS2? Which of this two is better supported by ubuntu 9.10? Are there better (or more common) alternatives?

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  • Should certain math classes be required for a Computer Science degree?

    - by sunpech
    For a Computer Science (CS) degree at many colleges and universities, certain math courses are required: Calculus, Linear Algebra, and Discrete Mathematics are few examples. However, since I've started working in the real world as a software developer, I have yet to truly use some the knowledge I had at once acquired from taking those classes. Discrete Math might be the only exception. My questions: Should these math classes be required to obtain a computer science degree? Or would they be better served as electives? I'm challenging even that the certain math classes even help with required CS classes. For example, I never used linear algebra outside of the math class itself. I hear it's used in Computer Graphics, but I never took those classes-- yet linear algebra was required for a CS degree. I personally think it could be better served as an elective rather than requirement because it's more specific to a branch of CS rather than general CS. From a Slashdot post CS Profs Debate Role of Math In CS Education: 'For too long, we have taught computer science as an academic discipline (as though all of our students will go on to get PhDs and then become CS faculty members) even though for most of us, our students are overwhelmingly seeking careers in which they apply computer science.'

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  • Practical RAID Performance?

    - by wag2639
    I've always thought the following to be a general rule of thumb for RAID: RAID 0: Best performance for READ and WRITE from stripping, greatest risk RAID 1: Redundant, decent for READ (I believe it can read from different parts of a file from different hard drives), not the best for WRITE RAID 0+1 (01): combines redundancy of RAID 1 with performance of RAID 0 RAID 1+0 (10): slightly better version of RAID 0+1 RAID 5: good READ performance, bad WRITE performance, redundant IS THIS ASSUMPTION CORRECT? (and how do they compare to a JBOD setup for R/W IO performance) Are certain practical RAID setups better for different applications: gaming, video editing, database (Acccess or SQL)? I was thinking about hard disk drives but does this apply to solid state drives as well?

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  • jquery image slider for jquery mobile website

    - by Kaidul Islam Sazal
    I have found a fancy looking cubic jquery image slider for jquery mobile website here: http://m.jeep.com/en/mobile/vehicles/selector.html?app=bmo#&ui-state=dialog Now I want to use this slider in one of my project.But I didn't found any resource of this kind of slider for mobile website in online.Now I need to know if there are this kind of slider on the internet ? Or do you know any useful resource of image slider for mobile site (I didn't find any effective resource).

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  • Tab Sweep: Java EE 6 Scopes, Observer, SSL, Workshop, Virtual Server, JDBC Connection Validation

    - by arungupta
    Recent Tips and News on Java, Java EE 6, GlassFish & more : • How Java EE 6 Scopes Affect User Interactions (DevX.com) • Why is Java EE 6 better than Spring ? (Arun Gupta) • JavaEE Revisits Design Patterns: Observer (Murat Yener) • Getting started with Glassfish V3 and SSL (JavaDude) • Software stacks market share within Jelastic: March 2012 (Jelastic) • All aboard the Java EE 6 Love Boat! (Bert Ertman) • Full stack Java EE workshop (Kito Mann) • Create a virtual server from console in glassfish (Hector Guzman) • Glassfish – JDBC Connection Validation explained (Alexandru Ersenie) • Automatically setting the label of a component in JSF 2 (Arjan Tijms) • JSF2 + Primefaces3 + Spring3 & Hibernate4 Integration Project (Eren Avsarogullari) • THE EXECUTABLE FEEL OF JAX-RS 2.0 CLIENT (Adam Bien) Here are some tweets from this week ... web-app dtd(s) on http://t.co/4AN0057b R.I.P. using http://t.co/OTZrOEEr instead. Thank you Oracle! finally got GlassFish and Cassandra running embedded so I can unit test my app #jarhell #JavaEE6 + #NetBeans is really a pleasure to work with! Reading latest chapter in #Spring vs #JavaEE wars https://t.co/RqlGmBG9 (and yes, #JavaEE6 is better :P) @javarebel very easy install and very easy to use in combination with @netbeans and @glassfish. Save your time.

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  • Which ecommerce framework is fast and easy to customize?

    - by Diego
    I'm working on a project where I have to put online an ecommerce system which will require some good amount of custom features. I'm therefore looking for a framework which makes customization easy enough (from an experienced developer's perspective, I mean). Language shoul be PHP and time is a constraint, I don't have months to learn. Additionally, the ecommerce will have to handle around 200.000 products from day one, which will increase over time, hence performance is also important. So far I examined the following: Magento - Complicated and, as far as I could read, slow when database contains many products. It's also resource intensive, and we can't afford a dedicated VPS from the beginning. OpenCart - Rough at best, documentation is extremely poor. Also, it's "free" to start, but each feature is implemented via 3rd party commercial modules. OSCommerce - Buggy, inefficient, outdated. ZenCart - Derived from OSCommerce, doesn't seem much better. Prestashop - It looks like it has many incompatibilities. Also, most of its modules are commercial, which increases the cost. In short, I'm still quite undecided, as none of the above seems to satisfy the requirements. I'm open to evaluate closed source frameworks too, if they are any better, but my knowledge about them is limited, therefore I'll welcome any suggestion. Thanks for all replies.

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  • Good place to start learning Adobe Illustrator CS5

    - by Kush
    The question may be off topic for SU, but I couldn't find any better place than this. I've been into designing for a while now, and have learned Photoshop by myself, and currently having fairly good grip in Photoshop CS5. Now due to rising needs, I need to learn Illustrator. I'm aware with the basics of Vector graphics, but haven't worked in designing such. So, suggest me a good place where I can learn Illustrator CS5, from ground up. I headed to Youtube for first start, but I still need an appropriate place where I get to learn it from better tutor. Thanks.

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  • JDeveloper Users - We Want to Hear Your Opinion

    - by Shay Shmeltzer
    One of our goals as product managers is to make sure that customers are happy with the product we deliver. We only get to interact with a small number of developers in a face-to-face way and get feedback and there are a lot of other developers who we don't get a chance to meet. To try and get more complete input, we created an online survey that will help us learn about usage patterns and the level of satisfaction JDeveloper users have with various features and aspects of their work with the tool.  It would be great if you could take 5 minutes and complete this online survey here. The survey is aimed at anyone using JDeveloper, whether for ADF development or any other type of development and for any version.  Hopefully this survey will help us deliver a product that better answers your needs and will help us make your JDeveloper usage experience better. Note - this is a new survey which is unrelated to the previous one that was focused on learning needs. Once you are done with this survey and if you would like to provide more feedback, note that we are also looking specifically for Java developers who are using Mac, as well as developers who are interested in building extensions to JDeveloper. 

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  • A Good Developer is So Hard to Find

    - by James Michael Hare
    Let me start out by saying I want to damn the writers of the Toughest Developer Puzzle Ever – 2. It is eating every last shred of my free time! But as I've been churning through each puzzle and marvelling at the brain teasers and trivia within, I began to think about interviewing developers and why it seems to be so hard to find good ones.  The problem is, it seems like no matter how hard we try to find the perfect way to separate the chaff from the wheat, inevitably someone will get hired who falls far short of expectations or someone will get passed over for missing a piece of trivia or a tricky brain teaser that could have been an excellent team member.   In shops that are primarily software-producing businesses or other heavily IT-oriented businesses (Microsoft, Amazon, etc) there often exists a much tighter bond between HR and the hiring development staff because development is their life-blood. Unfortunately, many of us work in places where IT is viewed as a cost or just a means to an end. In these shops, too often, HR and development staff may work against each other due to differences in opinion as to what a good developer is or what one is worth.  It seems that if you ask two different people what makes a good developer, often you will get three different opinions.   With the exception of those shops that are purely development-centric (you guys have it much easier!), most other shops have management who have very little knowledge about the development process.  Their view can often be that development is simply a skill that one learns and then once aquired, that developer can produce widgets as good as the next like workers on an assembly-line floor.  On the other side, you have many developers that feel that software development is an art unto itself and that the ability to create the most pure design or know the most obscure of keywords or write the shortest-possible obfuscated piece of code is a good coder.  So is it a skill?  An Art?  Or something entirely in between?   Saying that software is merely a skill and one just needs to learn the syntax and tools would be akin to saying anyone who knows English and can use Word can write a 300 page book that is accurate, meaningful, and stays true to the point.  This just isn't so.  It takes more than mere skill to take words and form a sentence, join those sentences into paragraphs, and those paragraphs into a document.  I've interviewed candidates who could answer obscure syntax and keyword questions and once they were hired could not code effectively at all.  So development must be more than a skill.   But on the other end, we have art.  Is development an art?  Is our end result to produce art?  I can marvel at a piece of code -- see it as concise and beautiful -- and yet that code most perform some stated function with accuracy and efficiency and maintainability.  None of these three things have anything to do with art, per se.  Art is beauty for its own sake and is a wonderful thing.  But if you apply that same though to development it just doesn't hold.  I've had developers tell me that all that matters is the end result and how you code it is entirely part of the art and I couldn't disagree more.  Yes, the end result, the accuracy, is the prime criteria to be met.  But if code is not maintainable and efficient, it would be just as useless as a beautiful car that breaks down once a week or that gets 2 miles to the gallon.  Yes, it may work in that it moves you from point A to point B and is pretty as hell, but if it can't be maintained or is not efficient, it's not a good solution.  So development must be something less than art.   In the end, I think I feel like development is a matter of craftsmanship.  We use our tools and we use our skills and set about to construct something that satisfies a purpose and yet is also elegant and efficient.  There is skill involved, and there is an art, but really it boils down to being able to craft code.  Crafting code is far more than writing code.  Anyone can write code if they know the syntax, but so few people can actually craft code that solves a purpose and craft it well.  So this is what I want to find, I want to find code craftsman!  But how?   I used to ask coding-trivia questions a long time ago and many people still fall back on this.  The thought is that if you ask the candidate some piece of coding trivia and they know the answer it must follow that they can craft good code.  For example:   What C++ keyword can be applied to a class/struct field to allow it to be changed even from a const-instance of that class/struct?  (answer: mutable)   So what do we prove if a candidate can answer this?  Only that they know what mutable means.  One would hope that this would infer that they'd know how to use it, and more importantly when and if it should ever be used!  But it rarely does!  The problem with triva questions is that you will either: Approve a really good developer who knows what some obscure keyword is (good) Reject a really good developer who never needed to use that keyword or is too inexperienced to know how to use it (bad) Approve a really bad developer who googled "C++ Interview Questions" and studied like hell but can't craft (very bad) Many HR departments love these kind of tests because they are short and easy to defend if a legal issue arrises on hiring decisions.  After all it's easy to say a person wasn't hired because they scored 30 out of 100 on some trivia test.  But unfortunately, you've eliminated a large part of your potential developer pool and possibly hired a few duds.  There are times I've hired candidates who knew every trivia question I could throw out them and couldn't craft.  And then there are times I've interviewed candidates who failed all my trivia but who I took a chance on who were my best finds ever.    So if not trivia, then what?  Brain teasers?  The thought is, these type of questions measure the thinking power of a candidate.  The problem is, once again, you will either: Approve a good candidate who has never heard the problem and can solve it (good) Reject a good candidate who just happens not to see the "catch" because they're nervous or it may be really obscure (bad) Approve a candidate who has studied enough interview brain teasers (once again, you can google em) to recognize the "catch" or knows the answer already (bad). Once again, you're eliminating good candidates and possibly accepting bad candidates.  In these cases, I think testing someone with brain teasers only tests their ability to answer brain teasers, not the ability to craft code. So how do we measure someone's ability to craft code?  Here's a novel idea: have them code!  Give them a computer and a compiler, or a whiteboard and a pen, or paper and pencil and have them construct a piece of code.  It just makes sense that if we're going to hire someone to code we should actually watch them code.  When they're done, we can judge them on several criteria: Correctness - does the candidate's solution accurately solve the problem proposed? Accuracy - is the candidate's solution reasonably syntactically correct? Efficiency - did the candidate write or use the more efficient data structures or algorithms for the job? Maintainability - was the candidate's code free of obfuscation and clever tricks that diminish readability? Persona - are they eager and willing or aloof and egotistical?  Will they work well within your team? It may sound simple, or it may sound crazy, but when I'm looking to hire a developer, I want to see them actually develop well-crafted code.

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  • Go Big or Go Home

    - by user12601034
    For those who don’t know, Oracle sponsors a group called “OWL” – Oracle Women’s Leadership - and the purpose of the group is to create local and global opportunities that support, educate and empower current and future women leaders at Oracle. This week, I had the opportunity to attend the Denver OWL roadshow, and I was really impressed with the quality of speakers and interactions that I experienced. One theme that arose throughout the day was that of “Lean In.” In a nutshell, “Lean In” requires you to take advantage of the opportunities that you’re given. One of my personal mantras is “Go big or go home."  That is, if you’re not willing to give it your all, don’t do it at all. Regardless of how you phrase it, it’s a life lesson that I believe needs to be tossed in our face every so often simply, if for no other reason, to get our attention. You are given a finite amount of time in your life; in your job role; in your interactions with others. Do you make the most of the opportunities given to you every day? Or do you believe that life just happens, and you have to deal with whatever is handed to you? I have a challenge for you. Set aside any concerns or fears you have about something and Lean In. Make the most of an opportunity presented to you…or make your own opportunity! If you start with just one thing, you’ll start building a mindset to make the most of additional opportunities. Not only will you be better for leaning in, but I’m betting that those around you will be better for it as well.

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  • My experience working with Teradata SQL Assistant

    - by Kevin Shyr
    Originally posted on: http://geekswithblogs.net/LifeLongTechie/archive/2014/05/28/my-experience-working-with-teradata-sql-assistant.aspx To this date, I still haven't figure out how to "toggle" between my query windows. It seems like unless I click on that "new" button on top, whatever SQL I generate from right-click just overrides the current SQL in the window. I'm probably missing a "generate new sql in new window" setting The default Teradata SQL Assistant doesn't execute just the SQL query I highlighted. There is a setting I have to change first. I'm not really happy that the SQL assistant and SQL admin are different app. Still trying to get used to the fact that I can't quickly look up a table's keys/relationships while writing query. I have to switch between windows. LOVE the execution plan / explanation. I think that part is better done than MS SQL in some ways. The error messages can be better. I feel that Teradata .NET provider sends smaller query command over than others. I don't have any hard data to support my claim. One of my query in SSRS was passing multi-valued parameters to another query, and got error "Teradata 3577 row size or sort key size overflow". The search on this error says the solution is to cast result column into smaller data type, but I found that the problem was that the parameter passed into the where clause could not be too large. I wish Teradata SQL Assistant would remember the window size I just adjusted to. Every time I execute the query, the result set, query, and exec log auto re-adjust back to the default size. In SSMS, if I adjust the result set area to be smaller, it would stay like that if I execute query in the same window.

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