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Using Bayesian Networks to Analyze What Experts Need to Know (and When they Know Too Much)

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FOSW02 - Bayesian networks and argumentation in evidence analysis

What is the proper evidentiary basis for an expert opinion? When do procedures designed to reduce bias (e.g., blinding, sequential unmasking) hide too much from the expert; when do they hide too little? When will an expert’s opinion be enhanced, and when might it be degraded or biased, by the expert’s consideration of contextual information? Questions like this are important in a variety of domains in which decision makers rely on expert analysis or opinion. This presentation will discuss the use of conditional probabilities and Bayesian networks to analyze these questions, providing examples from forensic science, security analysis, and clinical medicine. It will include discussion of the recommendations of the U.S. National Commission on Forensic Science on determining the “task-relevance” of information needed for forensic science assessments. 

This talk is part of the Isaac Newton Institute Seminar Series series.

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