The present invention is a system, method, and program product that comprises a computer with a collection of documents to be searched. The documents contain free form (natural language) text. We define a set of labels called QA-Tokens, which function as abstractions of phrases or question-types. We...http://www.google.fr/patents/US6665666?utm_source=gb-gplus-shareBrevet US6665666 - System, method and program product for answering questions using a search engine
System, method and program product for answering questions using a search engine
