mhelander writes "In his weblog Roger Alsing describes how he used genetic programming to arrive at a remarkably good approximation of Mona Lisa using only 50 semi-transparent polygons. His blog entry includes a set of pictures that let you see how 'Poly Lisa' evolved over roughly a million generations. Both beautiful to look at and a striking way to get a feel for the power of evolutionary algorithms."

An anonymous reader lets us know about a new initiative designed to help shield the open source software community from threats posed by patent trolls. The initiative, called Linux Defenders (the website is slated to go live tomorrow, Dec. 9), is sponsored by a consortium of technology companies including IBM. "The most novel feature of the new program... will be its call to independent open source software developers all over the world to start submitting their new software inventions to Linux Defenders... so that the group's attorneys and engineers can, for no charge, help shape, structure, and document the invention in the form of a 'defensive publication.' Linux Defenders will then also see to it that the publication, duly attributing authorship of the invention to the developer who submitted it, is filed on the IP.com Web site, a database used by the US Patent and Trademark Office and other patent examiners throughout the world when they are trying to determine whether a proposed patent is truly novel..."

narramissic writes "Back on November 29, MySQL developer Michael Widenius trashed Sun's decision to give MySQL 5.1 a 'generally available' designation in a now-infamous blog post. Widenius warned users to be 'very cautious about MySQL 5.1' because 'there are still many known and unknown fatal bugs in the new features that are still not addressed.' And now we get Sun's response. In an interview Monday, Marten Mickos, senior VP of Sun's database group, said, 'I learned over many years about the benefits and the painfulness of absolute transparency in open source. A little bit of debate never hurts. This is part of being an open-source company. ... People are free to blog about what they want.' Doubtless, this will do nothing to end the debate over whether Widenius will follow fellow MySQL co-founder David Axmark's lead and leave Sun."

SirLurksAlot writes "My last employer had to make a series of budget cuts, and I was laid off. I have been on the job hunt since then; however in the meantime I have begun freelancing as a Web developer. This is my first time in this role and so I would like the ask the Slashdot community: are there any best practices for freelance developers? What kind of process should I use when dealing with clients? Should I bill by the hour or provide a fixed quote on a per-project basis? What kind of assurances should I get from the client before I begin work? What is the best way to create accurate time estimates? I'm also wondering if there are any good open source tools for freelancers, such as for time-tracking and invoice creation (aside from simply using a spreadsheet). Any suggestions or insights would be welcome."

jamie pointed out an important announcement in the Perl community. Adam Kennedy, known as Alias, developed Strawberry Perl to "make Win32 a truly first class citizen of the Perl platform world." Over the last year, major CPAN modules have used Strawberry Perl to get to releases that work trouble-free on Windows. But the tens of thousands of smaller modules on CPAN are lagging, in many cases because of lack of access to a Windows environment for development and testing. Now Alias has worked with Microsoft's Open Source Software Lab to provide for every CPAN author free access to a centrally-hosted virtual machine environment containing every major version of Windows. "More information (and press releases) will follow, the entire program under which this partnership will be run is so new it's only just been given a name, so some of the organisational details will ironed out as we go. But for now, to all the CPAN authors, all I have to add is... Merry Christmas. P.S. Or your appropriate equivalent religious or non-religious event, if any, occurring during the month of December, etc., etc."

k33l0r writes "Recently I've been thinking about developing (or learning to develop) for Linux. I'm an IT university student but my degree program focuses almost exclusively on Microsoft tools (Visual Studio, C#, ASP.NET, etc.) which is why I would like to expand my repertoire on my own. Personally I'm quite comfortable in a Linux environment, but have never programmed for it. Over the years I've developed a healthy fear of everything Java and I'm not too sure of what I think of Python's use of indentation to delimit blocks. The question that remains is: what language and tools should I be using?"

Idzuna writes "With the somewhat recent announcement of Tabula Rasa shutting down, I have been thinking about what will happen to the Server/Client code. Does it get used as a guide for other projects? Does it get destroyed? Or does it just sit there on a hard drive somewhere in storage? The same question applies to many other failed creations. I know the likelihood of the code being distributed freely is next to nil, as most companies probably recycle code. If a vulnerability was found in old code, it could be applied to other products that the company has released. But wouldn't it help development of different projects if such a resource was available?"

prone2tech writes "From an article at Dr. Dobb's: Chipmakers have essentially said that the job of enforcing Moore's Law is now a software problem. They will concentrate on putting more and more cores on a die, and it's up to the software industry to recraft software to take advantage of the parallel-processing capabilities of the new chips. As is argued in this article, this means becoming proficient in parallel functional programming. The bad news? Getting good at functional programming is hard, harder than moving from iterative Pascal or Basic or C coding to object-oriented development. It's an exaggeration but a useful one: When you move to FP, all your algorithms break.'"

turnkeylinux writes "Amazon just launched its Public Data Sets service (home). The project encourages developers, researchers, universities, and businesses to upload large (non-confidential) data sets to Amazon — things like census data, genomes, etc. — and then let others integrate that data into their own AWS applications. AWS is hosting the public data sets at no charge for the community, and like all of AWS services, users pay only for the compute and storage they consume with their own applications. Data sets already available include various US Census databases, 3-D chemical structures provided by Indiana University, and an annotated form of the Human Genome from Ensembl."

ink writes "Sun released JavaFX 1.0 today, in a bid to take on Adobe's Flash and Microsoft's Silverlight technologies. It is Sun's first Java release to include standardized, cross-platform audio and video playback code (in the form of On2 licensed codecs). The lack of a Linux or Solaris release is a notable absence. The development kit currently consists of the base run-time, a NetBeans/Eclipse plug-in and a set of artifact exporters for Adobe CS 3&4." An anonymous reader adds a link to several tutorials accompanying the new release.

lkcl writes "The GitTorrent Protocol (GTP) is a protocol for collaborative git repository distribution across the Internet. Git promises to be a distributed software management tool, where a repository can be distributed. Yet, the mechanisms used to date to actually 'distribute,' such as ssh, are very much still centralized. GitTorrent makes Git truly distributed. The initial plans are for reducing mirror loading, however the full plans include totally distributed development: no central mirrors whatsoever. PGP signing (an existing feature of git) and other web-of-trust-based mechanisms will take over from protocols on ports (e.g. ssh) as the access control 'clearing house.' The implications of a truly distributed revision control system are truly staggering: unrestricted software freedom. The playing field is leveled in so many ways, as 'The Web Site' no longer becomes the central choke-point of control. Coming just in time for that all-encompassing Free Software revolution hinted at by The Rebellion Against Vista, this article will explain more fully some of the implications that make this quiet and technically brilliant project, GitTorrent, so important to Software Freedom, from both technical and political perspectives."

licorna writes "The 3.0 version of Python (also known as Python3k and Python3000) just got released few hours ago. It's the first ever intentionally backwards-incompatible Python release."

IEEE Spectrum is running a feature about the progress of game AI, and how it's helping to drive AI development in general. They explore several of the current avenues of research and look at potential solutions to some of the common problems. "The trade-off between blind searching and employing specialized knowledge is a central topic in AI research. In video games, searching can be problematic because there are often vast sets of possible game states to consider and not much time and memory available to make the required calculations. One way to get around these hurdles is to work not on the actual game at hand but on a much-simplified version. Abstractions of this kind often make it practical to search far ahead through the many possible game states while assessing each of them according to some straightforward formula. If that can be done, a computer-operated character will appear as intelligent as a chess-playing program--although the bot's seemingly deft actions will, in fact, be guided by simple brute-force calculations."

paradox1x writes "Malcolm Tredinnick shares a terrific rant against the misunderstanding and misuse of the Model-View-Controller design pattern. In particular he takes issue with the notion that Django should be considered an MVC framework. He says that 'It's as valid as saying it's a "circus support mechanism," since the statement is both true, in some contexts, and false in others (you can definitely use Django-based code to help run your circus; stop looking so skeptical).' I'm not sure I agree with the entire piece, but it is a very good read." We recently discussed another look at the bending and stretching of MVC patterns in the world of Web development.

theodp writes "No doubt many will nod knowingly as they read Paul Graham's The Other Half of 'Artists Ship', which delves into the downside of procedures developed by Big Companies to protect themselves against mistakes. Because every check you put on your programmers has a cost, Graham warns: 'And just as the greatest danger of being hard to sell to is not that you overpay but that the best suppliers won't even sell to you, the greatest danger of applying too many checks to your programmers is not that you'll make them unproductive, but that good programmers won't even want to work for you.' Sound familiar, anyone?"

stoolpigeon writes "MySQL is frequently touted as the world's most widely used relational database management system. Many of the best known web applications and web sites use MySQL as their data repository. The popularity of MySQL has continued to grow while at the same time many were concerned by the lack of many features considered essential to a 'real' rdbms. Such naysayers have done little to impede the growth or development of MySQL. The first edition of MySQL in a Nutshell, published in 2005, gave users a handy reference to using MySQL. The second edition, published in 2008, covers many new features that MySQL fans proudly proclaim as an answer to all those critics clamoring for a better-rounded rdbms." Read below for the rest of JR's review.

Mad Merlin writes "It's no secret that MySQL 5.1 has been a long time in the making, with the first beta release being in Nov 2005, but MySQL 5.1.30 has finally been released as GA. MySQL users can expect new features such as table/index partitioning, row based replication, a new plugin architecture, an event scheduler and a host of performance improvements from 5.1." Monty also had a blog post outlining some of the challenges faced in 5.1, including crashing bugs and a beta quality to most new features.

ttsiod writes "When I was a kid, I used to play the Knight's Tour puzzle with pen and paper: you simply had to pass once from every square of a chess board, moving like a Knight. Nowadays, I no longer play chess; but somehow I remembered this nice little puzzle and coded a 60-line Python solver that can tackle even 100x100 boards in less than a second. Try beating this, fellow coders!"

Mr. Leinad writes "Do you add Easter Eggs to the software that is produced at the office? I mean, if you have complete control over the final product, do you spice it up with that little personal touch, which, as unlikely as it is that anyone will see, carries with it an 'I was here' signature? I've just finished the development of a large software product, and I have a couple of days left to try to add my own personal Easter Egg code, but given that the software is quite professional, I don't know if I should. What do you think? Should we developers sign our creations?"

lkcl tips his in-depth article up at Advogato on the difficulties for the MVC programming model that are introduced by Javascript and AJAX, and solutions for them. He writes: "This article outlines how the MVC concept is made incredibly awkward by the gradual but necessary introduction of Javascript and AJAX. A solution is found in the form of Javascript Compiler Technology such as GWT or Pyjamas (PyPy's JS backend or Rb2Js could be used, with some additional work). The article outlines how and why the traditional MVC patterns are fragmented by Javascript and AJAX, advocating that if a site is programmed purely in a high-level language that is then compiled to Javascript for the Web Browser sections, the same high-level source code can be executed either client-side on the browser, or server-side, or even both, depending on the requirements. The implications of this approach are discussed in depth."