Speed-up may make “topic-sensitive” page rankings feasible Computer science researchers at Stanford University have developed several new techniques that together may make it possible to calculate Web page rankings as used in the Google search engine up to five times faster. The speed-ups to Googles method may make it realistic to calculate page rankings personalized for an individuals interests or customized to a particular topic. The Stanford team includes grad
Web users who stick to one or two search engines and learn those well will have better results for their queries than users who try the same query or various engines, a Penn State researcher says.
“There are no wholesale rules about structuring a query that will work on multiple search engines,” said Bernard J. Jansen, assistant professor of information sciences and technology (IST). “And what works on one engine, such as narrowing a query, can have the opposite effect on other search engine
Geologists find meteorites 100 times more common in wake of ancient asteroid collision
Using fossil meteorites and ancient limestone unearthed throughout southern Sweden, marine geologists at Rice University have discovered that a colossal collision in the asteroid belt some 500 million years ago led to intense meteorite strikes over the Earths surface.
The research, which appears in this weeks issue of Science magazine, is based upon an analysis of fossil meteor
In photographs, it looks like a big red spaceship cruising the ocean depths. But it’s actually a new species of jelly that was discovered and described by scientists at the Monterey Bay Aquarium Research Institute. MBARI scientists published their research on this unusual animal in a recent online version of the journal Marine Biology.
With a bell diameter of up to a meter wide, the new jelly, named Tiburonia granrojo or “big red,” would seem tough to miss, except that it lives deep below t
Children who frequently change schools are more likely than those who don’t to have behavioral health problems, according to a new Cincinnati Children’s Hospital Medical Center study.
The study, to be presented Sunday, May 4, at the annual meeting of the Pediatric Academic Societies in Seattle, shows that school mobility is an independent predictor of behavioral problems – regardless of one’s race, income, maternal education level or any other factor measured in the study.
“Transit
Computer security researchers suggest ways to thwart new form of cybercrime
Most experts on computer crime focus on attacks against Web servers, bank account tampering and other mischief confined to the digital world. But by using little more than a Web search engine and some simple software, a computer-savvy criminal or terrorist could easily leap beyond the boundaries of cyberspace to wreak havoc in the physical world, a team of Internet security researchers has concluded.