Advanced Query Techniques.
Abstract
The report describes an RADC sponsored R&D effort directed at providing an improved natural language access to differently formatted target databases. Section I defines functional characteristics of on-line intelligence information systems within the current state-of-the-art; describes the rationale of the AQT effort, and provides a comparison between the AQT approach and other approaches inherent in the existing information systems with a practical orientation. Section II describes basic concepts of the AQT approach (extended relational data models, intermediate query language, table driven translation). Linguistic implementation of natural language query techniques is provided in Section III. Section IV deals with the methodology of accessing differently formatted target databases. Section V describes some special problems in querying target databases (e.g., generic keys, ellipsis, purging a context, conversational postulates). Section VI constitutes a detailed description of the presently available AQT testbed system. Section VII provides criteria for evaluation of user interface languages for database management systems. Section VIII is a statement of conclusions including present status and results; operational evaluation criteria; areas for further work, plans, summary and directions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1979
- Accession Number
- ADA079626
Entities
People
- Clinton P. Mah
- John M. Morris