Issue No.04 - April (1976 vol.25)
D.A. Waterman , Rand Corporation
PAS-II, a computer program which represents a generalized version of an automatic protocol system (PAS-I) is described. PAS-II is a task-free, interactive, modular data analysis sis system for inferring the information processes used by a human from his verbal behavior while solving a problem. The output of the program is a problem behavior graph: a description of the subject's changing knowledge state during problem solving. As an example of system operation the PAS-II analysis of a short cryptarithmetic protocol is presented.
Cryptarithmetic, hypothesis formation, model building, natural language processing, problem space, production system, protocol analysis.
D.A. Waterman, A. Newell, "PAS-II: An Interactive Task-Free Version of an Automatic Protocol Analysis System", IEEE Transactions on Computers, vol.25, no. 4, pp. 402-413, April 1976, doi:10.1109/TC.1976.1674622