AN INVESTIGATION OF THE TECHNIQUES AND CONCEPTS OF INFORMATION RETRIEVAL.

Abstract

Work in two of the four areas of capability described in the project task structure has been performed. Under input capabilities an extension of work on procedures for automatic assignment and the development of a probabilistic nonBoolean retrieval model has been continued. The work on non-Boolean retrieval is also relevant to the query capabilities subtasks concerned with the specification of scope and the relaxation of limitations on descriptions. Under processing capabilities there is no new progress to be reported on associative procedures, but extensive mathematical analysis has been continued on the problems of file organization and search. The analysis was extended to Markov chains. Under integrating capabilities the implicit interrelationships among the specialized studies have been reviewed, although there was no attempt to develop specific integrative measures; this work has been postponed in favor of extending the concepts in the specialized areas. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 31, 1963
Accession Number
AD0428993

Entities

People

  • Jacques Harlow

Tags

DTIC Thesaurus Topics

  • Automatic
  • Information Retrieval
  • Markov Chains
  • Mathematical Analysis
  • Mathematics
  • Specifications

Readers

  • Computational Linguistics
  • Computational Modeling and Simulation
  • Theoretical Analysis.

Technology Areas

  • AI & ML
  • AI & ML - Information Retrieval
  • AI & ML - Machine Learning Algorithms