TACITUS: Text Understanding for Strategic Computing
Abstract
The aim of the TACITUS project was to elaborate a theory of how knowledge is used in the interpretation of discourse, and to implement this theory in a computer system for understanding naturally generated texts. This research was carried out between May 1985 and September 1990. The principal results of the research were as follows: 1) The development of a theory of inference in discourse interpretation based on weighted abduction. This has yielded a simple and elegant framework in which a broad range on linguistic phenomena can be investigated; 2) The construction of a large knowledge base of commonsense knowledge, particularly for knowledge in the physical domain, with a more preliminary extension to social domains; and 3) The implementation of the TACITUS system for text understanding, a system which has been applied in four different domains. The research done on this project can be classified into six areas--syntax, encoding commonsense knowledge, encoding domain knowledge, local pragmatics, task pragmatics, and knowledge acquisition.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1990
- Accession Number
- ADA230607
Entities
People
- Jerry R. Hobbs
Organizations
- SRI International