The present invention provides systems and methods that employ a statistical distributional analysis to improve content search engine search results. In particular, a substring and/or a string sequence distributional algorithm can be applied to a set of queries to generate a distributional characteristic...http://www.google.com/patents/US20040254920?utm_source=gb-gplus-sharePatent US20040254920 - Systems and methods that employ a distributional analysis on a query log to improve search results