A Note on the Minimax Solution for the Two-Stage Group Testing Problem

Yaakov Malinovsky and Paul S. Albert

The American Statistician, 2015, vol. 69, issue 1, 45-52

Abstract: Group testing is an active area of current research and has important applications in medicine, biotechnology, genetics, and product testing. There have been recent advances in design and estimation, but the simple Dorfman procedure introduced by R. Dorfman in 1943 is widely used in practice. In many practical situations, the exact value of the probability p of being affected is unknown. We present both minimax and Bayesian solutions for the group size problem when p is unknown. For unbounded p , we show that the minimax solution for group size is 8, while using a Bayesian strategy with Jeffreys' prior results in a group size of 13. We also present solutions when p is bounded from above. For the practitioner, we propose strong justification for using a group size of between 8 and 13 when a constraint on p is not incorporated and provide useable code for computing the minimax group size under a constrained p .

Date: 2015
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DOI: 10.1080/00031305.2014.983545

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