AN INVESTIGATION OF THE TECHNIQUES AND CONCEPTS OF INFORMATION RETRIEVAL
Abstract
Work in each of the four areas of capability isolated in the project task structure has been performed in the past quarter. Under input capabilities an extension of last quarter's work on procedures for automatic assignment has been accomplished and the development of a probabalistic non-Boolean retrieval model has been initiated. Under query capabilities new approaches to the problems of limitation to documents, automatic extracting or abstracting, and restricted retrieval-elimination of redundancy-have been developed. The work on non-Boolean retrieval is also relevant to the query capabilities subtasks concerned with the specification of scope and through relaxation of limitations on descriptions. Extensive mathematical analysis was initiated on the problems of file organization and search. Finally, under integrating capabilities some general theoretical considerations were evolved that should lead to measures and models of system value and optimization in item retrieval systems.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 30, 1963
- Accession Number
- AD0413620
Entities
People
- Alexander Szejman
- Alfred Trachtenberg
- George Greenberg
- Quentin A. Darmstadt