The use of syntactic structure in relationship extraction

• Main Author: Singh-Miller, Natasha, 1981-
• Other Authors: Michael J. Collins.
• Format: Others
• Language: English
• Published: Massachusetts Institute of Technology 2005
• Subjects: Electrical Engineering and Computer Science.
• Online Access: http://hdl.handle.net/1721.1/17990

Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004. === Includes bibliographical references (leaves 66-68). === This thesis describes a method of relationship extraction that uses surface and syntactic features of text along with entity detection information to perform sentence-level relationship extraction tasks. The tasks are to build and test classifiers for the following relationships: employer-employee, organization-location, family, and person-location. Methods of reducing noise in these features sets are also discussed, and experimental evidence of their effectiveness is presented. Performance of the system is analyzed in terms of precision and recall, and errors of the system are discussed along with proposed solutions. Finally a reformulation of the problem is presented along with a discussion of future work. === by Natasha Singh. === M.Eng.