Learning Control Heuristics in BB1,

Abstract

BB1, a blackboard system building computer architecture, ameliorates the knowledge acquisition bottleneck with generic knowledge sources that learn control heuristics. Some learning knowledge sources replace the knowledge engineer, interacting directly with domain experts. Others operate autonomously. The paper presents a trace from the illustrative knowledge source, Understanding, Preference, running in PROTEAN, a blackboard system for elucidating protein structure. Understand-Preference is triggered when a domain expert overrides one of BB1's scheduling recommendations. It identifies and encodes the heuristic underlying the expert's scheduling decision. The trace illustrates how learning knowledge sources exploit BB1's rich representation of domain and control knowledge, actions, and results. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 07, 1985
Accession Number
ADA159199

Entities

People

  • B. Hayes-roth
  • M. Hewett

Organizations

  • Stanford University

Tags

Communities of Interest

  • Autonomy
  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Acquisition
  • Amino Acids
  • Artificial Intelligence
  • Automated Speech Recognition
  • Computer Architecture
  • Computer Science
  • Computers
  • Computing System Architectures
  • Databases
  • Engineering
  • Engineers
  • Intervals
  • Learning
  • Scheduling (Production)
  • Standards
  • Technical Information Centers
  • Universities

Fields of Study

  • Computer science

Readers

  • Artificial Intelligence
  • Electrical Engineering