Uncertainty in Artificial Intelligence
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Probabilistic Evaluation of Candidates and Symptom Clustering for Multidisorder Diagnosis
Thomas Wu
This paper derives a formula for computing the conditional probability of a set of candidates, where a candidate is a set of disorders that explain a given set of positive findings. Such candidate sets are produced by a recent method for multidisorder diagnosis called symptom clustering. A symptom clustering represents a set of candidates compactly as a cartesian product of differential diagnoses. By evaluating the probability of a candidate set, then, a large set of candidates can be validated or pruned simultaneously. The probability of a candidate set is then specialized to obtain the probability of a single candidate. Unlike earlier results, the equation derived here allows the specification of positive, negative, and unknown symptoms and does not make assumptions about disorders not in the candidate.
Pages: 460-467
PS Link:
PDF Link: /papers/90/p460-wu.pdf
AUTHOR = "Thomas Wu ",
TITLE = "Probabilistic Evaluation of Candidates and Symptom Clustering for Multidisorder Diagnosis",
BOOKTITLE = "Proceedings of the Sixth Conference Annual Conference on Uncertainty in Artificial Intelligence (UAI-90)",
ADDRESS = "Corvallis, Oregon",
YEAR = "1990",
PAGES = "460--467"

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