Articles tagged with Search Engines
A Stanford team has developed three techniques to speed up computing Google-style Web rankings, with speeds of up to five times faster than current methods. The techniques, including extrapolation, BlockRank, and Adaptive PageRank, can reduce computation time by 50-300% in realistic conditions.
Researchers found that removing query operators from searches on multiple engines resulted in similar top-ranked results. The 'or' operator was the only marker to significantly change results, while 'must appear' yielded identical results fewer times on MSN than Google and AOL.
Researchers at Johns Hopkins University warn of automated web forms being exploited for mass unwanted catalogs and postal disruptions. They propose technological fixes to prevent such attacks, including altering online form coding and implementing human verification steps.
A new Ohio University study reveals that e-commerce has increased the value of used and rare books, with online sales accounting for a 12.5% increase in book sales. The study also found that prices for rare books have climbed, while common titles have seen stabilization or decrease in price.
A study by Ohio State University scholars found that 27% of Web pages listed correct answers to library reference questions, while 9% contained incorrect answers. The researchers suggest evaluating source credibility and supplementing with other resources for more accurate information.
A new study by NEC Research Institute reveals that search engines have decreased coverage to 16% of the publicly indexable web, with bias towards popular and commercial sites. The study also found that indexing can take months for new pages, affecting economic viability, scientific progress, and social decisions.