Slashdot Mirror

An anonymous reader asked a question that I've been wondering about too: "I live in a small southern European country where natural light abounds. This may sound good, but it is a pain when it comes to using laptops that come with a glossy finish, making it impossible to work unless you are doing it in the dark. To make matters worse, since we are a small market, most manufacturers only offer a subset of their product line, and don't allow you to choose any options available in other countries (like matte screens). Buying abroad is not an option since we have our own very specific keyboard layout. Why are manufacturers doing this? Does anyone really prefer using glossy screens for day-to-day activities?"

An anonymous reader writes "CodeSourcery's Mark Mitchell wrote to the GCC mailing list yesterday reporting that 'the GCC Steering Committee and the FSF have approved the use of C++ in GCC itself. Of course, there's no reason for us to use C++ features just because we can. The goal is a better compiler for users, not a C++ code base for its own sake.' Still undecided is what subset of C++ to use, as many contributors are experts in C, but novices in C++; there is a call for a volunteer to develop the C++ coding standards."

SergeyKurdakov writes "Monty 'xiphmont' Montgomery of the Xiph Foundation says the latest action-packed, graph- and demo-clip-stuffed Theora project update page (demo 9) is now up for all and sundry! Catch up on what's gone into the new Theora encoder Ptalarbvorm over the last few months. It also instructs how to pronounce 'Ptalarbvorm.' Ptalarbvorm is not a finished release encoder yet, though I've personally been using it in production for a few months. Pace on improvements hasn't slowed down — the subjective psychovisual work being done by Tim Terriberry and Greg Maxwell has at least doubled-again on the improvements made by Thusnelda, and they're not anywhere near done yet. As a bonus Monty gathered all Xiph demo pages in one place." Also on the video codec front, and also with a Xiph connection, atamido writes "Google has released On2's VP8 video codec to the world, royalty-free. It is packaging it with Vorbis audio, in a subset of the Matroska container, and calling it WebM. It's not branded as an exclusively Google project — Mozilla and Opera are also contributors. Builds of your favorite browsers with full support are available." An anonymous reader points out this technical analysis of VP8.

solanum writes "On March 2nd Crossover 9.0 was released. CrossOver 9 features a new user interface that focuses on making installation of Windows software quicker and easier than previous versions. Another new feature is CrossOver's ability to download installation 'recipes' directly from CodeWeavers online Compatibility Database. 'If another CrossOver user has figured out how to use CrossOver to install a Windows application, they can upload that installation recipe to our database,' said Jeremy White, CodeWeavers chief executive officer. 'As we go forward, and build this online storehouse, CrossOver will begin to automatically install that same application for other users. This enables us to move closer to a world where CrossOver will begin to run the majority of Windows apps, and not just an officially supported subset. In other words, our diabolical plot for world domination is going exactly as planned,' he added. Early reviews and comments are positive, and my own experience is that many more Windows applications work in this new version than previously."

Several sources are reporting on a new metric that computer scientists are going after with respect to recommender systems — recommendation diversity. "In a paper that will be released by PNAS, a group of scientists are pushing the limits of recommendation systems, creating new algorithms that will make more tangential recommendations to users, which can help expand their interests, which will increase the longevity and utility of the recommendation system itself. Accuracy has long been the most prized measurement in recommending content, like movies, links, or music. However, computer scientists note that this type of system can narrow the field of interest for each user the more it is used. Improved accuracy can result in a strong filtering based on a user's interests, until the system can only recommend a small subset of all the content it has to offer."

After the FTC sent letters to 100 organizations warning them that their data is being leaked on P2P networks — and now has requested detailed operational data from at least a subset of those organizations — it was pretty likely that anti-P2P legislation would get proposed. Two senators have introduced the P2P Cyber Protection and Informed User Act, which "...would prohibit peer-to-peer file-sharing programs from being installed without the informed consent of the authorized computer user. The legislation would also prohibit P2P software that would prevent the authorized user from blocking the installation of a P2P file-sharing program and/or disabling or removing any P2P file-sharing program. Software developers would be required to clearly inform users when their files are made available to other peer-to-peer users under legislation introduced Feb. 24 by Sens. Amy Klobuchar, D-Minn., and John Thune, R-S.D."

chrb writes "New Scientist has an article questioning the uniqueness of DNA profiles. 41 scientists and lawyers recently published a high-profile Nature article (sub. required) arguing that the FBI should release its complete CODIS database. The request follows research on the already released Arizona state DNA database (a subset of CODIS) which showed a surprisingly large number of matches between the profiles of different individuals, including one between a white man and a black man. The group states that the assumption that a DNA profile represents a unique individual, with only a minuscule probability of a secondary match, has never been independently verified on a large sample of DNA profiles. The new requests follow the FBI's rejection of similar previous requests."

eldavojohn writes "A new award-winning thesis from an MIT computer science assistant professor showed that the Nash equilibrium of complex games (like the economy or poker) belong to problems with non-deterministic polynomial (NP) complexity (more specifically PPAD complexity, a subset of TFNP problems which is a subset of FNP problems which is a subset of NP problems). More importantly there should be a single solution for one problem that can be adapted to fit all the other problems. Meaning if you can generalize the solution to poker, you have the ability to discover the Nash equilibrium of the economy. Some computer scientists are calling this the biggest development in game theory in a decade."

eldavojohn writes that though gravitational waves are "predicted to exist by Einstein's Theory of General Relativity, the initial tests run by the Laser Interferometer Gravitational-Wave Observatory Scientific Collaboration (LIGO) failed to find anything. It doesn't disprove their existence although it does rule out a subset of string theory. From the article, 'For example, some models predict the existence of cosmic strings, which are loops in space-time that may have formed in the early universe and gotten stretched to large scales along with the expansion of the universe. These objects are thought to produce bursts of gravitational waves as they oscillate. Since no large-amplitude gravitational waves were found, cosmic strings, if they exist at all, must be smaller than some models predict.' The scientists working in Washington and Louisiana (in tandem to rule out flukes) will now move on to Advanced LIGO which will analyze a volume of space 1,000 times larger. If they don't find any gravitational waves in that experiment, the results will be more than unsettling to many theorists."

Condobolin sends in an update to the Australian government's ongoing efforts to implement ISP-level filtering. One of the hurdles they had to overcome was to build a system that would allow them to filter content without impairing other internet usage. A trial of the system has just concluded, and the results are positive — at least, for the government. Quoting: "More than half of the Internet service providers (ISPs) taking part in the Federal Government's ISP filtering trial have reported minimal speed disruptions or technology problems. Of the nine participating ISPs, iPrimus, Netforce, Webshield, Nelson Bay Online and OMNIconnect told ARN they had seen no slowdowns in Internet speeds or problems with the filtering solutions in place. Of the remaining four ISPs, Tech2U and Highway1 were unable to respond by time of publication while Unwired and Optus refused to comment. ... 'From a technical perspective we're more than confident that if the government decided to roll out a mandatory Internet filter based on or around an Australian Communications and Media Authority blacklist or subset thereof, then it can be done without any impact whatsoever to the speed of the Internet,' [said Webshield managing director Anthony Pillion]."

An anonymous reader writes "There was a television program in Australia last week about Matthew Walker's visual battery-less two-factor authentication system called PassWindow. Essentially, you hold the clear plastic window up to the apparently random pattern on the screen of your computer, revealing a one-time PIN to type in for authentication. The plastic window has many advantages: difficult to copy or view over the shoulder, etc. Because there is no electronics, chip or battery, the PassWindow is extremely cheap to manufacture, giving it a big advantage over other two-factor authentication systems. However, I don't know about the security of the system. The apparently random pattern of lines in the PassWindow is analogous to a one-time pad, using a different subset of the one-time pad every time a PIN is needed. Is this a useful level of security for logging in to a bank account?"

narramissic writes "Sun Microsystems' chief open source officer, Simon Phipps, said in an April 11 blog post that Google committed a major transgression by only including support for a subset of Java classes in its App Engine development platform. 'Whether you agree with Sun policing it or not, Java compatibility has served us all very well for over a decade,' Phipps wrote. 'That includes being sure as a developer that all core classes are present on all platforms. Creating subsets of the core classes in the Java platform was forbidden for a really good reason, and it's wanton and irresponsible to casually flaunt the rules.' Phipps characterized his remarks as non-official, saying: 'This isn't something I could comment on on Sun's behalf. My personal comments come purely from my long association with Java topics.'"

Many readers noted an outage affecting Google's gmail service last night. Firmafest points to a statement from Google, according to which only a small subset of users were affected. According to reader CaptHarlock, mail itself remained accessible through IMAP clients, and the chat feature via external applications. jw3 asks "Of course, gmail is just one of the many providers of web-based e-mails. When I look around, almost everyone seems to be using them nowadays. So — what do you do? Do you trust that the site of your web-based e-mail provider will never go down? Do you make backups of all your e-mails?" (Some readers still seem to be unable to reach the site, too.)

darien writes "Microsoft has confirmed that Windows 7 will be offered in six different editions. In a seeming admission that the numerous versions of Vista were confusing to consumers, the company says that this time its marketing will focus on just two editions — 'Home Premium' and 'Professional.' But the reality is more complex, with different packages offering different subsets of the total range of Windows 7 features."

An anonymous reader writes "A group of powerful Wikipedia insiders are pushing for FlaggedRevisions which will require a 'trusted user' to approve of edits before they go live on the online encyclopedia. There is also opposition but with support of founder Jimbo Wales it is likely to go through. The German version has tried the system, leading to three-week delays between edit and publication. The English wiki with its higher number of anonymous editors per trusted user is expected to suffer longer queues if FlaggedRevisions is implemented on all articles. This comes just a few days after Britannica announced that readers will be allowed to suggest edits and have them reviewed within 20 minutes. Will we see the day when Britannica can be edited almost instantly while editing Wikipedia requires fighting bureaucracy, patience and the right contacts?" Note that, according to the quote from Jimmy Wales in the linked article, this system would only be used "on a subset of articles, the boundaries of which can be adjusted over time to manage the backlog."

Nathan Halverson writes "The popular online radio service Pandora.com has added brief commercial interruptions to its service. Pandora says this is a trial and is targeted to a subset of listeners at this point. In one case, a brief ad for the Fox TV show 'Lie To Me' interrupted the music stream for about 15 seconds after ten songs had initially played, and the same commercial interrupted 22 songs later. 'But [Pandora's] founder promised the site will never carry as many audio ads as broadcast radio, despite the fact it pays substantially higher royalty fees to the recording industry.'"

penguin_dance writes "The AP is reporting that National Geographic is getting into video games. National Geographic Games, a subset of the parent company, will 'work with game publishers to turn its material into games for PCs, consoles and handheld devices.' The first title is out for the PC and iPhone. It's a hidden-objects game called Herod's Lost Tomb, and is built around their program on King Herod and an article in the magazine. They also plan to publish and distribute games for the console market, including PS3 and Wii, and the handheld market as well. 'The games will be drawn from a broad range of content and themes across National Geographic's properties.' National Geographic: Africa will be out next month, from Sony. Other upcoming titles include Rain Forests and Greencity. Also available this month will be National Geographic: Panda for the Nintendo DS."

Wired has an interview with Alan Kay on the occasion of the 40th anniversary of the idea of the laptop computer. Kay's vision, which he dubbed the "Dynabook," was for a 2-pound, 1-Mpixel color computing device. "... the Dynabook was never built. But it greatly inspired the devices we now call laptops, although it's taken four decades to slim the tech down to the point where usable computers actually weigh as little as two pounds. To honor his achievements, Mountain View's Computer History Museum on Wednesday will celebrate the 40th anniversary of the legendary Dynabook. [Quoting Kay:] 'The Amazon Kindle is kind of a subset of a Dynabook — too much of a subset. The screen is too small, it is not very capable of dynamics, the keyboard is poor, etc. But it does have several limited service ideas that are good. The next version of a Kindle could be really exciting.'"

alaederach writes "I run a lab in a non-profit academic life sciences research institute. Our IT recently decided it would be a good idea to use PGP whole disk encryption on all of our computers, laptops and servers and picked PGP's suite of software. The main reason is that a small subset of our researchers work with patient information which we obviously are mandated to keep confidential. My lab does a lot of high-performance computational work (on genes from Tetrahymena, no humans here) and I am concerned that the overhead of complying with our ITs new security policy will be quite detrimental to my research program. For example, dynamically reallocating a partition on a PGP encrypted disk is apparently not possible. Furthermore, there is some evidence that certain forms of compression are also incompatible with PGP whole disk encryption. Interestingly, it is hard to find any negative articles on PGP, probably because most of them are written by IT pros who are only focused on the security, and not usability. I therefore ask the Slashdot community, what are the disadvantages of PGP in terms of performance, Linux, and high-performance computational research?"

An anonymous reader writes to mention that the Tokeneer research project has been released to the open source community by the US National Security Agency. The main goal of this project was to show how highly secure software can be developed cost-effectively. "Tokeneer has been written in SPARK Ada, a high level programming language designed for high-assurance applications. Originally a subset of the Ada language, it is designed in such a way that all SPARK programs are legal Ada programs. Ada is the natural choice for mission-critical, high-integrity systems due to its combination of flexibility, reliability and ease of use, and SPARK further adds a static verification toolset that combines depth, soundness, efficiency and formal guarantees."