Accession Number : ADA186646

Title :   Cirrus: An Automated Protocol Analysis Tool.

Descriptive Note : Technical rept. 15 Jun 86-31 Oct 87,

Corporate Author : CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF PSYCHOLOGY

Personal Author(s) : VanLehn, Kurt ; Garlick, Steve

PDF Url : ADA186646

Report Date : 15 Apr 1987

Pagination or Media Count : 24

Abstract : Cirrus is a tool for protocol analysis. Given an encoded protocol of a subject solving problems, it constructs a modal that will produce the same protocol as the subject when it is applied to the same problems. In order to parameterize Cirrus for a task domain, the user must supply it with a problem space: a vocabulary of attributes and values for describing spaces, a set of primitive operators, and set of macro operators. Cirrus model of the subject is a hierarchical plan that is designed to be executed by an agenda based plan follower. Cirrus main components are a plan recognizer and a condition inducer. The condition inducer is based on Quinlan's ID3. Cirrus has potential applications not only in psychology but also as the student modelling component in an intelligent tutoring system. Keywords: Input; Output; Computational.

Descriptors :   *PROBLEM SOLVING, INDUCTANCE, MODELS, PLANNING, PSYCHOLOGY, RECOGNITION, VOCABULARY, COGNITION, INPUT, OUTPUT, LEARNING MACHINES, REASONING, STRATEGY, HUMANS, ALGORITHMS

Subject Categories : Cybernetics
      Psychology

Distribution Statement : APPROVED FOR PUBLIC RELEASE