http://www.physorg.com/technology-news/computer-sciences/ en-us PhysOrg.com provides the latest news on computer science, computer science technology, computer science technologies and technology science. We see the popular "captcha" security mechanism often ― wavy letters websites ask us to type into a box. It's used by web pages and newsletter sign-up forms to prevent computer robots from hacking into servers and databases. But these codes, which are becoming increasingly complicated for an average person to use, are not immune to security holes. http://www.physorg.com/news181311669.html Technology - Computer Sciences Tue, 29 Dec 2009 12:21:43 EST news181311669 New cinema blockbuster, Avatar, leapt to the top of box office charts as soon as it came out - a stunning 3D realisation of an alien world. Our fascination with themes of escape to other fantastic places and the thrill of immersion in virtual environments also attracts millions to assume new identities in online virtual worlds. http://www.physorg.com/news180789918.html Technology - Computer Sciences Wed, 23 Dec 2009 11:25:43 EST news180789918 A team of researchers from the University of Girona and the Max Planck Institute in Germany has shown that some mathematical algorithms provide clues about the artistic style of a painting. The composition of colours or certain aesthetic measurements can already be quantified by a computer, but machines are still far from being able to interpret art in the way that people do. http://www.physorg.com/news180784495.html Technology - Computer Sciences Wed, 23 Dec 2009 09:55:55 EST news180784495 Members of a Syracuse University research team have shown that an obscure phenomenon called stochastic resonance (SR) can improve the clarity of signals in systems such as radar, sonar and even radiography, used in medical clinics to detect signs of breast cancer. It does this by adding carefully selected noise to the system. http://www.physorg.com/news180711513.html Technology - Computer Sciences Tue, 22 Dec 2009 13:50:10 EST news180711513 Research presented in a paper by Morgan McGuire, assistant professor of computer science at Williams College, and co-author Dr. David Luebke of NVIDIA, introduces a new algorithm to improve computer graphics for video games. http://www.physorg.com/news180705224.html Technology - Computer Sciences Tue, 22 Dec 2009 12:10:01 EST news180705224 (PhysOrg.com) -- With a new immersive multiplayer game system, researchers are further blurring the line between gaming and the real world. Using a mouse and keyboard sounds kind of quaint compared to the system developed and tested by Jefry Tedjokusumo, Steven ZhiYing Zhou, and Stefan Winkler of the National University of Singapore (Winkler is currently with Symmetricom in San Jose, California). http://www.physorg.com/news180695187.html Technology - Computer Sciences Tue, 22 Dec 2009 10:00:01 EST news180695187 (PhysOrg.com) -- Dutch researcher Igor Berezhnoy has developed computer algorithms to support art historians and other art experts in their visual assessment of paintings. His digital technology is capable of distinguishing a forgery from an authentic Van Gogh based on the painter's characteristic brush work. http://www.physorg.com/news180637621.html Technology - Computer Sciences Mon, 21 Dec 2009 17:20:02 EST news180637621 (PhysOrg.com) -- By using technology to detect guilty expressions, of course. CSIRO is using automated expression recognition technology to tell whether someone is in pain and, according to computer scientist, CSIRO`s Dr Simon Lucey, there`s no reason why Santa couldn`t train the system to find out who`s been naughty or nice. http://www.physorg.com/news180629200.html Technology - Computer Sciences Mon, 21 Dec 2009 14:47:41 EST news180629200 (PhysOrg.com) -- Data compression is one of the fundamental research areas in computer science, letting information systems do more with less. It`s the reason the iPod nano can hold thousands of songs instead of hundreds, and it`s what keeps transmitted images from choking the Internet. If every digital file is a string of bits - zeroes and ones - then compression is a way to represent the same information with fewer bits. http://www.physorg.com/news180625190.html Technology - Computer Sciences Mon, 21 Dec 2009 13:40:40 EST news180625190 (PhysOrg.com) -- Irish computer scientists have developed a system to improve the helpfulness of online customer reviews. In recognition of the quality of their work, the group received a distinguished paper award at the British Computer Society`s annual Artificial Intelligence Conference. http://www.physorg.com/news180370101.html Technology - Computer Sciences Fri, 18 Dec 2009 15:10:03 EST news180370101 Most people have scores of contacts, scattered around their mobile phone, e-mail address book and multiple social networking sites. Scientists at Hewlett-Packard can tell you which of those contacts are your closest friends. http://www.physorg.com/news180293006.html Technology - Computer Sciences Thu, 17 Dec 2009 19:40:01 EST news180293006 (PhysOrg.com) -- The interplay of human mobility patterns like those between local metropolitan commuters and long-range airline travelers during a global epidemic can be modeled in such detail so as to offer refined views of epidemics that could aid in public health emergency decision making, according to new research published by a team led by informaticists at Indiana University. http://www.physorg.com/news180292371.html Technology - Computer Sciences Thu, 17 Dec 2009 18:00:01 EST news180292371 Society will be unable to take full advantage of real-time data analysis technologies that might improve health, reduce traffic congestion and give scientists new insights into human behavior until it resolves questions about how much of a person's life can be observed and by whom, a Carnegie Mellon University computer scientist contends in a commentary published Friday in the journal Science. http://www.physorg.com/news180282545.html Technology - Computer Sciences Thu, 17 Dec 2009 14:29:58 EST news180282545 (PhysOrg.com) -- A 3D recreation of a Roman house in Pompeii has been built in the virtual world Second Life by Dr Shelley Hales and Dr Nic Earle from the University of Bristol. http://www.physorg.com/news180172952.html Technology - Computer Sciences Wed, 16 Dec 2009 08:02:59 EST news180172952 Personalized newscasts culled from the Web and presented by digital avatars. Baseball stories written by computers using raw data. http://www.physorg.com/news180165769.html Technology - Computer Sciences Wed, 16 Dec 2009 06:03:31 EST news180165769 (PhysOrg.com) -- Sports fans may be interested in a new system that ranks NFL and college football teams in a simple, straightforward way, similar to how Google PageRank ranks webpages. The new sports algorithm, called the Power Rank, is being developed by Ed Feng, a researcher in statistical mechanics at Sandia National Laboratory, although this project is independent of his work at Sandia. http://www.physorg.com/news180094320.html Technology - Computer Sciences Tue, 15 Dec 2009 10:12:40 EST news180094320 (PhysOrg.com) -- Scientists have known for 40 years that even though it takes longer to use sign language to sign individual words, sentences can be signed, on average, in the same time it takes to say them, but until now they have never understood how this could be possible. http://www.physorg.com/news180085938.html Technology - Computer Sciences Tue, 15 Dec 2009 10:00:01 EST news180085938 (PhysOrg.com) -- Computer scientist Rafael Pass is seeking new approaches to cryptographic security with a $600,000, five-year grant from the Air Force Office of Scientific Research. http://www.physorg.com/news180040309.html Technology - Computer Sciences Mon, 14 Dec 2009 19:30:08 EST news180040309 (PhysOrg.com) -- As communities brace for rising wintertime influenza cases, scientists are developing a mathematical and visual analytic toolkit to help health officials quickly analyze pandemics and craft better response strategies. http://www.physorg.com/news180028065.html Technology - Computer Sciences Mon, 14 Dec 2009 16:00:04 EST news180028065 (PhysOrg.com) -- The Glasgow Science Centre in Scotland is exhibiting a computer that makes up jokes using its database of simple language rules and a large vocabulary. http://www.physorg.com/news179736700.html Technology - Computer Sciences Fri, 11 Dec 2009 06:52:14 EST news179736700 (PhysOrg.com) -- University of Maryland researchers have developed and successfully tested new computer software and computational techniques to analyze patterns of improvised explosive device (IED) attacks in Iraq, Afghanistan or other locations and predict the locations of weapons caches that are used by insurgents to support those attacks. http://www.physorg.com/news179677568.html Technology - Computer Sciences Thu, 10 Dec 2009 14:51:36 EST news179677568 (PhysOrg.com) -- Facebook figures out that you know Holly, although you haven't seen her in 10 years, because you have four mutual friends -- a good predictor of direct friendship. But sometimes Facebook gets it wrong. "Hey, I don't know Harry!" http://www.physorg.com/news179424418.html Technology - Computer Sciences Mon, 07 Dec 2009 16:07:44 EST news179424418 (PhysOrg.com) -- High-profile websites are constantly under threat from hackers attempting to paralyse their websites but new research could make such attacks computationally impossible. This research will be one of the topics discussed at a major international conference on the theory and application of cryptology and information security in Japan this week. http://www.physorg.com/news179400475.html Technology - Computer Sciences Mon, 07 Dec 2009 10:00:02 EST news179400475 (PhysOrg.com) -- A new program, Eureqa, takes raw data and formulates scientific laws to suit, and it is available by free download to all scientists. http://www.physorg.com/news179394947.html Technology - Computer Sciences Mon, 07 Dec 2009 09:30:01 EST news179394947 The field of artificial-intelligence research (AI), founded more than 50 years ago, seems to many researchers to have spent much of that time wandering in the wilderness, swapping hugely ambitious goals for a relatively modest set of actual accomplishments. Now, some of the pioneers of the field, joined by later generations of thinkers, are gearing up for a massive 'do-over' of the whole idea. http://www.physorg.com/news179400180.html Technology - Computer Sciences Mon, 07 Dec 2009 09:23:41 EST news179400180 A professor at Tufts University will lead a team of international researchers to explore how humanities scholars can use data analysis to track topics about the Greco-Roman world as they appear in a million documents, spanning thousands of years. School of Arts and Sciences Professor Gregory Crane will be joined by researchers from three other universities on the project, which will be funded by one of eight recently awarded "Digging into Data Challenge" grants. http://www.physorg.com/news179165372.html Technology - Computer Sciences Fri, 04 Dec 2009 16:10:11 EST news179165372 You want to go for a run, but you don't want to run in polluted air that might aggravate your asthma. University of California, San Diego computer scientists are creating a network of environmental sensors that will help you avoid air pollution hot spots that exist exactly when you are planning your route. The system will provide up-to-the-minute information on outdoor and indoor air quality, based on environmental information collected by hundreds, and eventually thousands, of sensors attached to the backpacks, purses, jackets and board shorts of San Diegans going about daily life. http://www.physorg.com/news179160276.html Technology - Computer Sciences Fri, 04 Dec 2009 15:10:01 EST news179160276 (PhysOrg.com) -- Can economics better predict how banks will react to future credit crunches and their impact on the wider economy? Breakthrough simulation software by European researchers could hold the answers to this question and more. http://www.physorg.com/news179073897.html Technology - Computer Sciences Thu, 03 Dec 2009 15:20:02 EST news179073897 (PhysOrg.com) -- CSIRO scientists have created 'rogue waves' more than 20 metres high and smashed them into virtual oil and gas production platforms to compare different mooring designs. http://www.physorg.com/news179074139.html Technology - Computer Sciences Thu, 03 Dec 2009 14:49:49 EST news179074139 (PhysOrg.com) -- By mimicking the way that a living body acquires immunity to disease through vaccination, researchers have designed an artificial immune system to solve optimization problems more effectively than before. The results show that the biologically motivated approach is better at exploring a greater amount of space and quickly locating the desired local and global optima than previous methods. http://www.physorg.com/news179060729.html Technology - Computer Sciences Thu, 03 Dec 2009 11:05:59 EST news179060729