By Erica Naone, Technology Review
Search engines look for clues about the importance of a document or piece of information for a given set of keywords. Often this means relying on what other pages link to–this is how Google’s famous PageRank algorithm works. Researchers have now developed subtler ways of measuring the influence and importance of documents and pages on the Web and in archives, by using the text stored in those documents. This approach doesn’t rely on people adding pointers such as links and citations, and it could lead to better real-time search engines as well as recommendation systems that automatically gather information on a certain topic.
http://www.technologyreview.com/web/26656/?p1=MstRcnt
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