The present invention provides methods, systems, and computer program products for normalizing document search terms through use of an alias database, as may be found in an alias relationship file, such as a directory service. A gatherer module receives as input (or crawls through) several documents...http://www.google.co.uk/patents/US7228301?utm_source=gb-gplus-sharePatent US7228301 - Method for normalizing document metadata to improve search results using an alias relationship directory service
