Show Summary Details

Page of

PRINTED FROM OXFORD HANDBOOKS ONLINE ( © Oxford University Press, 2018. All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of a single chapter of a title in Oxford Handbooks Online for personal use (for details see Privacy Policy and Legal Notice).

date: 17 February 2020

Abstract and Keywords

Cognitive systems, whether human or engineered, must often reason from and act on probabilistic information, and many of their decisions are therefore inescapably uncertain. Such probabilistic decision making is the purview of the two approaches reviewed in this chapter: Bayesian analysis and the theory of signal detection (TSD). Bayes’ theorem provides a normative means of updating probabilistic beliefs in light of new data, and modern Bayesian techniques allow decision makers to model joint distributions of large sets of variables. For cases in which a human decision maker must make unaided Bayesian inferences, cognitive psychology has developed and validated simple guidelines for data representation to optimize performance. TSD models the transformation of probabilistic assessments into discrete diagnoses, dissociating the representation of evidence from the decision rules applied to that evidence and establishing normative criteria against which the performance of a cognitive system can be measured. Together, Bayesian and signal detection models offer methods of making, modeling, and assessing judgment and decision making under uncertainty, for both human and engineered agents.

Keywords: decision making, uncertainty, Bayes’ theorem, Bayesian networks, receiver operating characteristic (ROC)

Access to the complete content on Oxford Handbooks Online requires a subscription or purchase. Public users are able to search the site and view the abstracts and keywords for each book and chapter without a subscription.

Please subscribe or login to access full text content.

If you have purchased a print title that contains an access token, please see the token for information about how to register your code.

For questions on access or troubleshooting, please check our FAQs, and if you can''t find the answer there, please contact us.