A structural natural language index is created by segmenting documents within a repository into text portions and extracting named entity, co-reference, lexical entries, structural-semantic relationships, speaker attribution and meronymic derived features. A constituent structure is determined that contains...http://www.google.fr/patents/US20070073533?utm_source=gb-gplus-shareBrevet US20070073533 - Systems and methods for structural indexing of natural language text
Systems and methods for structural indexing of natural language text