A binary code is called a (w, r) cover-free code if it is the incidence matrix of a family of sets where the intersection of any w sets is not covered by the union of any other r sets. For certain (w, r) cover-free codes with a simple structure, we obtain a new condition of optimality and uniqueness up to row and/or column permutations.
Problems of Information Transmission – Springer Journals
Published: Oct 17, 2005
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