US 2008/0177740 A1 · DETECTING RELATIONSHIPS IN UNSTRUCTURED TEXT

Abstract

Disclosed are embodiments of a system and a method for detecting relationships described in unstructured text-based electronic documents. The system and method incorporate the use of an input file that contains one or more text patterns that represent particular relationships. The text patterns each include regular text expressions that describe the particular relationship and slots for the location of each entity in that relationship. Document(s) are selected by a user and scanned by a proper noun tagger that identifies and tags every occurrence of proper names within the document(s). Then, a pattern matcher scans the document(s) to match text patterns. If a text pattern is matched within a document a relationship detector extracts all pairs of proper names found in the slots for each matched text pattern. The output from the relationship detector includes the names for each entity in the relationship, the type of relationship, and the identity of the document and the location of the sentence describing the relationship in the document.

Claims20

Dependent claims

A computer implemented method of detecting a relationship between a first entity and a second entity, said method comprising:

creating a text pattern that represents a type of relationship, wherein said text pattern comprises a first slot for said first entity and a second slot for said second entity;
analyzing a text-based document so as to locate said text pattern within said document;
determining a location for each proper name occurring within said document;
and
extracting proper names located within said first slot and said second slot of said text pattern within said document, wherein said proper names located within said first slot and said second slot identify said first entity and said second entity.

2 more elements

A program storage device readable by computer and tangibly embodying a program of instructions executable by said computer to perform a method of detecting a relationship between a first entity and a second entity, said method comprising:

creating a text pattern that represents a type of relationship, wherein said text pattern comprises a first slot for said first entity and a second slot for said second entity;
analyzing a text-based document so as to locate said text pattern within said document;
determining a location for each proper name occurring within said document;
and
extracting proper names located within said first slot and said second slot of said text pattern within said document, wherein said proper names located within said first slot and said second slot identify said first entity and said second entity

2 more elements

Dependencies are inferred from the claim text.

Detecting relationships in unstructured text

Life of this patent

Detecting relationships in unstructured text

Life of this patent

Abstract

Claims20