How_probability_relates_to_search_engines

How_probability_relates_to_search_engines - How probability...

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Unformatted text preview: How probability relates to search engines Paul Kantor Real information Need Query: flying lessons Hawaii What the system sees The whole web The index Very very large Retrieved set The system now wants to decide which items to put on the first page; at the top of a list which might have millions of links The system can not be certain that any particular web page will match to a need; so it tries to pick the ones that are likely to. This is expressed mathematically by using the ideas of Probability More likely L e s s l ik e ly Set Retrieval process Ranking process There are two forms of probability I. Focus on this particular user: Recommender or Personalization A. Recognize that each document in the retrieved set has specific properties or features B. Scope out those features for all the documents in the retrieved set C. Try to get other information about the user, to know which features the user seems to prefer....
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How_probability_relates_to_search_engines - How probability...

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