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The group testing problem is concerned with identifying a small set of infected individuals in a large population. At our disposal is a testing procedure that allows us to test several individuals together. In an idealized setting, a test is positive if and only if at least one infected individual is included and negative otherwise. Significant progress was made in recent years towards understanding the information-theoretic and algorithmic properties in this noiseless setting. In this paper, we consider a noisy variant of group testing where test results are flipped with certain probability, including the realistic scenario where sensitivity and specificity can take arbitrary values. Using a test design where each individual is assigned to a fixed number of tests, we derive explicit algorithmic bounds for two commonly considered inference algorithms and thereby naturally extend the results of Scarlett &#x0026; Cevher (2016) and Scarlett &#x0026; Johnson (2020). We provide improved performance guarantees for the efficient algorithms in these noisy group testing models &#x2013; indeed, for a large set of parameter choices the bounds provided in the paper are the strongest currently proved.

Improved Bounds for Noisy Group Testing With Constant Tests per Item