arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1902.06002cs.ITcs.DMmath.ITmath.PRmath.STstat.TH
收藏

群体测试:信息论视角

Group Testing: An Information Theory Perspective

University of Leeds(利兹大学);University of Bristol(布里斯托大学);National University of Singapore(新加坡国立大学)

Matthew Aldridge, Oliver Johnson, Jonathan Scarlett

AI总结:

本文从信息论角度探讨群体测试问题,分析了高效算法、解码界限及噪声环境下的恢复方法,提出群体测试的速率概念,评估了不同稀疏度下的算法性能。

摘要:

群体测试问题旨在通过测试池发现少量缺陷品。本文从信息论视角综述了群体测试的最新发展,包括高效算法、最优解码界限及算法无关的反向界限。我们不仅评估了缩放定律,还考虑了常数因子,引出群体测试的速率概念,表示每测试所获得的信息量。在无噪声环境下,我们提出了若干结果,得出最优速率,进而推导出不同稀疏度下算法的最优性和次优性。此外,我们还综述了噪声环境下的类似发展,以及标准群体测试问题的多种变体,包括近似恢复准则、有限阶段自适应算法、亚线性时间算法及带有额外先验信息的设置等。

英文摘要:

The group testing problem concerns discovering a small number of defective items within a large population by performing tests on pools of items. A test is positive if the pool contains at least one defective, and negative if it contains no defectives. This is a sparse inference problem with a combinatorial flavour, with applications in medical testing, biology, telecommunications, information technology, data science, and more. In this monograph, we survey recent developments in the group testing problem from an information-theoretic perspective. We cover several related developments: efficient algorithms with practical storage and computation requirements, achievability bounds for optimal decoding methods, and algorithm-independent converse bounds. We assess the theoretical guarantees not only in terms of scaling laws, but also in terms of the constant factors, leading to the notion of the {\em rate} of group testing, indicating the amount of information learned per test. For the noiseless setting, we present a series of results leading to optimal rates, which in turn imply optimality and suboptimality results of various algorithms depending on the sparsity regime. We also survey analogous developments in noisy settings. In addition, we survey results concerning a number of variations on the standard group testing problem, including approximate recovery criteria, adaptive algorithms with a limited number of stages, sublinear-time algorithms, and settings with additional prior information, among others.

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。

↑