My Blog » software

MIT & Harvard On Brain-Inspired A.I. Vision

Soulskill — Sat, 05 Dec 2009 15:20:00 +0000

An anonymous reader writes with this excerpt from TGDaily: "Researchers from Harvard and MIT have demonstrated a way to build better artificial visual systems with the help of low-cost, high-performance gaming hardware. [A video describing their research is available.] 'Reverse engineering a biological visual system — a system with hundreds of millions of processing units — and building an artificial system that works the same way is a daunting task,' says David Cox, Principal Investigator of the Visual Neuroscience Group at the Rowland Institute at Harvard. 'It is not enough to simply assemble together a huge amount of computing power. We have to figure out how to put all the parts together so that they can do what our brains can do.' The team drew inspiration from screening techniques in molecular biology, where a multitude of candidate organisms or compounds are screened in parallel to find those that have a particular property of interest. Rather than building a single model and seeing how well it could recognize visual objects, the team constructed thousands of candidate models, and screened for those that performed best on an object recognition task. The resulting models outperformed a crop of state-of-the-art computer vision systems across a range of test sets, more accurately identifying a range of objects on random natural backgrounds with variation in position, scale, and rotation. Using ordinary CPUs, the effort would have required either years or millions of dollars of computing hardware. Instead, by harnessing modern graphics hardware, the analysis was done in just one week, and at a small fraction of the cost."

Read more of this story at Slashdot.

Genetic Algorithm Helps Identify Criminals

ScuttleMonkey — Mon, 30 Nov 2009 20:22:00 +0000

Ponca City, We love you writes to tell us that a new software approach to police sketch artists is finding surprising success in a trial run of 15 police departments in the UK and a few other sites. The software borrows principles from evolution with an interactive genetic algorithm that progressively changes as witnesses try to remember specific details. Current field trials are reporting an increase in successful identification by as much as double conventional methods. A short video with a few working shots of the new "EFIT-V" system is also available on YouTube. "[Researcher Christopher Solomon]'s software generates its own faces that progressively evolve to match the witness' memories. The witness starts with a general description such as 'I remember a young white male with dark hair.' Nine different computer-generated faces that roughly fit the description are generated, and the witness identifies the best and worst matches. The software uses the best fit as a template to automatically generate nine new faces with slightly tweaked features, based on what it learned from the rejected faces. 'Over a number of generations, the computer can learn what face you're looking for,' says Solomon. The mathematics underlying the software is borrowed from Solomon's experience using optics to image turbulence in the atmosphere in the 1990s."

Read more of this story at Slashdot.

G-WAN, Another Free Web Server

kdawson — Sun, 29 Nov 2009 22:30:00 +0000

mssmss writes "Has anyone used G-WAN — a free (as in beer), supposedly fast and scalable Web server? The downside is it supports only C scripts, which the author claims is a plus since most programmers know C anyway. There is currently only a Windows release and no clear answer in their FAQs whether there would be Linux/Solaris releases. As an interesting aside, releasing a Web server while at the same time fighting a losing battle (PDF) with a large bank over a piracy claim of $200 million (the bank is alleged to have done the piracy) is quite a feat."

Read more of this story at Slashdot.

Toshiba Employee Arrested For Selling Software To Break Copy Limits

Soulskill — Thu, 26 Nov 2009 17:10:00 +0000

JoshuaInNippon writes "A Toshiba employee in western Japan has been arrested on charges of copyright violations for selling software online that breaks copying limits on certain Japanese digital TV recording and playback devices. The software specifically overrides limits on a program called 'dubbing10,' which is used in devices sold by companies such as Sony, Sharp, and Panasonic. It is believed that the man generated thousands of dollars worth of earnings for himself by selling to at least 712 people, including one teenager who then resold the software to another 240 people. This is the first disclosed case in Japan of someone being arrested for selling such limit-removal software for digital TV recording. Since it sounds like he has already admitted to selling it (although he denies creating it), and due to the generally high conviction rate of those arrested by Japanese police, his future does not look so bright at the moment."

Read more of this story at Slashdot.

Inkscape 0.47 Released

kdawson — Wed, 25 Nov 2009 07:10:00 +0000

derrida writes "After over a year of intensive development and refactoring, Inkscape 0.47 is out. This version of the SVG-based vector graphics editor brings improved performance and tons of new features, including: timed autosave, Spiro splines, auto-smooth nodes, Eraser tool, new modes in Tweak tool, snapping options toolbar & greater snapping abilities, new live path effects (including Envelope), over 200 preset SVG filters, new Cairo-based PS and EPS export, spell checker, many new extensions, optimized SVG code options, and much more. Additionally, it would be wrong to not mention the hundreds of bug fixes. Check out the full release notes for more information about what has changed, enjoy the screenshots, or just jump right to downloading your package for Windows, Linux, or Mac OS X." We've been following the progress of Inkscape for years (2006, 2005, 2004).

Read more of this story at Slashdot.

Opera 10.10 Released, Includes New “Unite” Tech

ScuttleMonkey — Mon, 23 Nov 2009 20:16:00 +0000

Opera 10.10 has been released, and with it their new "Unite" technology, which allows users to share content directly between all of their own devices. Unite wraps both web browser and web server into a single package in an attempt to change the way users think about their browser. "'We promised Opera Unite would reinvent the Web,' said Jon von Tetzchner, CEO, Opera. 'What we are really doing is reinventing how we as consumers interact with the Web. By giving our devices the ability to serve content, we become equal citizens on the Web. In an age where we have ceded control of our personal data to third-parties, Opera Unite gives us the freedom to choose how we will share the data that belongs to us.'"

Read more of this story at Slashdot.