Abstract
The recommendations of computer-based decision-support systems depend on the preferences of an expert on which the model is based. Often, these preferences are represented only implicitly, rather than explicitly, in the system. Decision-theoretic preference models that explicitly represent the preferences of the decision maker provide numerous advantages for decision-support systems. In this paper, we describe these advantages. The creation and refinement of decision-theoretic preference models, however, remains a difficult task. We describe an accurate and efficient method for determining the preferences of domain experts and for refining the model that captures those preferences. In this preference-assessment method, we simulate decisions common in the expert's area. We then infer the preferences of the expert from the choices that she makes on the simulated decisions, and use the preference information to refine the model automatically.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Langlotz C. P., Fagan L. M., Tu S. W., Sikic B. I., Shortliffe E. H. A therapy planning architecture that combines decision theory and artificial intelligence techniques. Comput Biomed Res. 1987 Jun;20(3):279–303. doi: 10.1016/0010-4809(87)90059-0. [DOI] [PubMed] [Google Scholar]
- Langlotz C. P. The feasibility of axiomatically-based expert systems. Comput Methods Programs Biomed. 1989 Oct-Nov;30(2-3):85–95. doi: 10.1016/0169-2607(89)90061-8. [DOI] [PubMed] [Google Scholar]
- McNeil B. J., Pauker S. G., Sox H. C., Jr, Tversky A. On the elicitation of preferences for alternative therapies. N Engl J Med. 1982 May 27;306(21):1259–1262. doi: 10.1056/NEJM198205273062103. [DOI] [PubMed] [Google Scholar]
- Tversky A., Kahneman D. Judgment under Uncertainty: Heuristics and Biases. Science. 1974 Sep 27;185(4157):1124–1131. doi: 10.1126/science.185.4157.1124. [DOI] [PubMed] [Google Scholar]
- Tversky A., Kahneman D. The framing of decisions and the psychology of choice. Science. 1981 Jan 30;211(4481):453–458. doi: 10.1126/science.7455683. [DOI] [PubMed] [Google Scholar]