Accession Number:

ADA224042

Title:

A User Modelling Approach for Computer-Based Critiquing

Descriptive Note:

Doctoral thesis

Corporate Author:

COLORADO UNIV AT BOULDER DEPT OF COMPUTER SCIENCE

Personal Author(s):

Report Date:

1990-01-01

Pagination or Media Count:

242.0

Abstract:

Theoretical studies and implementations of computer-based critiquing systems indicate that it is desirable to enhance that approach to better support human-computer collaborative effort. A user model will enable these systems to individualize explanations of their advice to provide better support for cooperative problem solving and enhance user learning. User modelling research in advice-giving dialog and intelligent educational systems was studied together with theoretical analyses of the limitations of human-computer interaction, and empirical observations of human-to-human collaborative effort. A framework for a user modelling component fo a critiquing system was developed and implemented in a critic for LISP programs. The user models developed by the system were compared to self-assessment questionnaires completed by subjects learning the LISP language. The analyses indicated a favorable correlation and potential improvements to the framework. The user model is based on the conceptual domain model required for explanations its semantic structure allows the system to implicitly enrich the user model contents. The significance of this thesis is a framework for a user modelling component that can be used for a more general class of cooperative knowledge-based systems.

Subject Categories:

  • Computer Systems
  • Human Factors Engineering and Man Machine Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE