Accession Number:

ADA149135

Title:

Unifying Data-Directed and Goal-Directed Control: An Example and Experiments,

Descriptive Note:

Corporate Author:

MASSACHUSETTS UNIV AMHERST DEPT OF COMPUTER AND INFORMATION SCIENCE

Personal Author(s):

Report Date:

1981-01-01

Pagination or Media Count:

5.0

Abstract:

Effective control in a multi-layer cooperating knowledge source problem solver such as Hearsay-II requires the system to reason about the relationships among the competing and cooperating knowledge source KS instantations both past and potential that are working on different aspects and levels of the problem. Such reasoning is needed to assess the current state of problem solving and to develop plans for using the systems limited processing resources to the best advantage. The relationships among KS instantations can be naturally represented when KS activity is viewed simultaneously from a data-directed and a goal-directed perspective. In this paper we show how data- and goal-directed control can be integrated into a single uniform framework, and we present an example and experimental results of sophisticated focusing using this framework. Author

Subject Categories:

  • Administration and Management
  • Information Science

Distribution Statement:

APPROVED FOR PUBLIC RELEASE