Query Relaxation and its Applications in Information Systems

Abstract

The goal of this project is to transfer the Cooperative Database (CoBase) technology to the Navy/SPAWAR and AFRL/Rome. CoBase was installed at the SPAWAR computing environment to perform query relaxation in an agent-based architecture. CoBase serves as an agent and communicates with other agents via the FIPA knowledge communication protocol. A customized interface to fit the SPAWAR environment, which includes building a JDBC gateway interface and developing a special start-up script was performed. The CoBase Content Language (CCL) was developed to support agent communication. Type Abstraction hierarchies (a knowledge-base) were generated for the SPAWAR database for query relaxation. Demo queries showcased CoBase's relaxation and relaxation control capabilities. CoBase was also installed at the AFRL facility located in Rome NY. A limited demonstration of CoBase capabilities was performed at AFRL/Rome.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 2000
Accession Number
ADA378160

Entities

People

  • Wesley W. Chu

Organizations

  • University of California, Los Angeles

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  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Air Force Research Laboratories
  • Classification
  • Computer Science
  • Databases
  • Demonstrations
  • Environment
  • Hierarchies
  • Information Systems
  • Landing Fields
  • Language
  • Latitude
  • Longitude
  • Military Research
  • New York
  • Shell Scripts

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  • Agent-Based Social Robotics and Mobile-Assisted Learning in Virtual Environments.
  • Database Systems and Applications