Diagnostic Parsimony
Ockham Meets Bayes
DOI:
https://doi.org/10.5195/pom.2022.123Keywords:
Diagnosis, Parsimony, Bayes, Ockham's Razor, ProbabilityAbstract
Ockham’s razor is the idea that simpler hypotheses are to be preferred over more complex ones. In the context of medical diagnosis, this is taken to mean that when a patient has multiple symptoms, a single diagnosis should be sought that accounts for all the clinical features, rather than attributing a different diagnosis to each. This paper examines whether diagnostic parsimony can be justified by reference to probability theory. I argue that while attempts to offer universal justifications of diagnostic parsimony fail, a more constrained use of this diagnostic principle can be supported.References
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Austrian Science Fund
Grant numbers Lise Meitner Grant M2366-G24