D-Disjunct matrices: Bounds and Lovâsz Local Lemma

研究成果: 雜誌貢獻期刊論文同行評審

7 引文 斯高帕斯(Scopus)

摘要

A binary matrix is said to be d-disjunct if the union (or Boolean sum) of any d columns does not contain any other column. Such matrices constitute a basis for nonadaptive group testing algorithms and binary (/-superimposed codes. Let t(d,n) denote the minimum number of rows for a (/-disjunct matrix with n columns. In this note we study the bounds of t(d,n) and its variations. Lovdsz Local Lemma (Colloq. Math. Soc. Jànos Bolyai 10 (1974) 609-627; The Probabilistic Method, Wiley, New York, 1992 (2nd Edition, 2000)) and other probabilistic methods are used to extract better bounds. For a given random t × n binary matrix, the Stein-Chen method is used to measure how 'bad' it is from a (d-disjunct matrix.

原文???core.languages.en_GB???
頁(從 - 到)97-107
頁數11
期刊Discrete Mathematics
253
發行號1-3
DOIs
出版狀態已出版 - 6 6月 2002

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