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arXiv 2108.13359cs.ITmath.COmath.IT
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无并集码的快速译码

Fast Decoding of Union-free Codes

Ilya Vorobyev

摘要:

无并集码和析取码是两种组合结构,用于非自适应分组测试,通过执行最小测试次数$t$,在$n$样本中找到一组$d$缺陷元素。已知无并集码具有更大的速率,而析取码提供更有效的解码算法。在本文中,我们介绍了一个新的非自适应群测试与快速解码的代码。这些码的码率比析取码的码率大,而译码算法的复杂度与析取码相同。此外,我们推导出一个下界的情况下,$d=2$缺陷,这是显着优于析取代码的界限,几乎一样好的工会自由码的界限的新代码的速度。

英文摘要:

Union-free codes and disjunctive codes are two combinatorial structures, which are used in nonadaptive group testing to find a set of $d$ defective elements among $n$ samples by carrying out the minimal number of tests $t$. It is known that union-free codes have a larger rate, whereas disjunctive codes provide a more efficient decoding algorithm. In this paper we introduce a new family of codes for nonadaptive group testing with fast decoding. The rate of these codes is larger than the rate of disjunctive codes, while the decoding algorithm has the same complexity. In addition, we derive a lower bound on the rate of new codes for the case of $d=2$ defectives, which is significantly better than the bound for disjunctive codes and almost as good as the bound for union-free codes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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