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Pattern classification for diagnostic purposes

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  • Zakay, Dan
  • Teeni, Dov
  • Ben-Bassat, Moshe

Abstract

Behavioral information acquisition strategies in a diagnosis problem are formulated and examined and the effects on these strategies of both information presentation and user training are tested. Twenty-five subjects participated in an experiment in which the decision maker was required to solve a set of medical diagnosis problems. A matrix of 7 illnesses and 11 possible tests was presented on a micro-computer; the task was to diagnose the correct illness with the minimum number of tests. The results were analyzed using verbal protocols and a computerized record of the user's responses. The results confirm the use of certain behavioral strategies, in particular concentration on a small subset of classes in a regular pattern, and a positional effect on the choice of tests was also detected. The implications of these results on the design of management information systems are discussed.

Suggested Citation

  • Zakay, Dan & Teeni, Dov & Ben-Bassat, Moshe, 1983. "Pattern classification for diagnostic purposes," Omega, Elsevier, vol. 11(4), pages 385-394.
    • Handle: RePEc:eee:jomega:v:11:y:1983:i:4:p:385-394
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