System and method for associating an unvalued search term with a valued search term

摘要

Methods and systems for associating an unbidded term with a bidded term and for pricing search terms. The method for associating an unbidded term with a bidded term comprises selecting a first set of search engine results for the unbidded term, selecting a second set of search engine results for the bidded second term, comparing the first and second sets, and associating the unbidded term with at least one bidded term based on the results of comparing. The method for assigning monetary values to search terms comprises receiving bids for a first term, deriving a similarity function between the first and second term and pricing the second term based upon the derived similarity function and the bid on the first term.