Patent ID: 6523025
Filing Date: 2003-02-18
Classification: G06F,Y10S

Abstract:
A document processing system for storing input documents after subjecting the documents to a predetermined process, and for retrieving or clipping documents matching a given query from the stored documents, comprising:knowledge information storing means for storing knowledge information used while processing an input document, where the processing comprises specifying, extracting, and correlating contents of the input document, and where the knowledge information comprises patterns describing contexts of text within which types of events are expected to be found; event specifying means for specifying a type of an event described in the input document by looking up patterns in said knowledge information storing means and by matching text in the input document to a pattern that corresponds to the specified event type; attribute value extracting means for extracting, from the document, attribute values of attributes relating to the event specified by said event specifying means by looking up the knowledge information stored in said knowledge information storing means; correlating means for correlating the attribute values extracted by said attribute value extracting means with attributes associated with entities in the real world that are stored in said knowledge information storing means; document storing means for storing the attribute values correlated by said correlating means and the document or information specifying a storage location thereof in a manner associated with each other; and document extracting means for retrieving or clipping a target document by looking up the attribute values and the query.