Patent ID: 7194406
Filing Date: 2007-03-20
Classification: G06F,Y10S

Abstract:
1. A method for extracting information from a natural language text corpus based on a natural language query, comprising the steps of: analyzing said natural language text corpus with respect to location of phrases, location of word tokens, phrase types, and lexical meaning of word tokens; indexing and storing the analyzed natural language text corpus; analyzing a natural language query with respect to phrases, phrase types, word tokens of phrases, and lexical meaning of word tokens; identifying, for at least one phrase of the analyzed natural language query, phrases of the indexed and stored analyzed natural language text corpus each having the same phrase type as the at least one phrase of the analyzed natural language query, and each comprising a word token being a lexical head and having the same lexical meaning as a word token being a lexical head of the at least one phrase of the analyzed natural language query; and extracting, from the indexed and stored analyzed natural language text corpus, portions of text comprising the identified phrases.