Strict group testing and the set basis problem
Journal article, 2014

Group testing is the problem to identify up to d defectives out of n elements, by testing subsets for the presence of defectives. Let t(n,d,s) be the optimal number of tests needed by an s-stage strategy in the strict group testing model where the searcher must also verify that at most d defectives are present. We start building a combinatorial theory of strict group testing. We compute many exact t(n,d,s) values, thereby extending known results for s=1 to multistage strategies. These are interesting since asymptotically nearly optimal group testing is possible already in s=2 stages. Besides other combinatorial tools we generalize d-disjunct matrices to any candidate hypergraphs, and we reveal connections to the set basis problem and communication complexity. As a proof of concept we apply our tools to determine almost all test numbers for n<10 and some further t(n,2,2) values. We also show t(n,2,2)<2.44*log n+o(log n).

group testing

d-disjunct matrix

graph coloring

set basis



Peter Damaschke

Chalmers, Computer Science and Engineering (Chalmers), Computing Science (Chalmers)

Muhammad Azam Sheikh

Chalmers, Computer Science and Engineering (Chalmers), Computing Science (Chalmers)

Gabor Wiener

Budapest University of Technology and Economics

Journal of Combinatorial Theory - Series A

0097-3165 (ISSN) 10960899 (eISSN)

Vol. 126 1 70-91


Basic sciences

Subject Categories

Discrete Mathematics



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