Statistical Problems with Planted Structures: Information-Theoretical and Computational Limits
Statistical Problems with Planted Structures: Information-Theoretical and Computational Limits
复制标题
种植结构的统计问题:信息理论和计算限制
DOI:
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Jiaming Xu
中科院分区:
文献类型:
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作者:
Yihong Wu;Jiaming Xu
Over the past few years, insights from computer science, statistical physics, and information theory have revealed phase transitions in a wide array of high-dimensional statistical problems at two distinct thresholds: One is the information-theoretical (IT) threshold below which the observation is too noisy so that inference of the ground truth structure is impossible regardless of the computational cost; the other is the computational threshold above which inference can be performed efficiently, i.e., in time that is polynomial in the input size. In the intermediate regime, inference is information-theoretically possible, but conjectured to be computationally hard.
This article provides a survey of the common techniques for determining the sharp IT and computational limits, using community detection and submatrix detection as illustrating examples. For IT limits, we discuss tools including the first and second moment method for analyzing the maximal likelihood estimator, information-theoretic methods for proving impossibility results using rate-distortion theory, and methods originated from statistical physics such as interpolation method. To investigate computational limits, we describe a common recipe to construct a randomized polynomial-time reduction scheme that approximately maps instances of the planted clique problem to the problem of interest in total variation distance.
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影响因子:
1
作者:
Hajek, Bruce;Wu, Yihong;Xu, Jiaming
通讯作者:
Xu, Jiaming
DOI:
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发表时间:
2017-09
期刊:
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影响因子:
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作者:
Jiaming Xu
通讯作者:
Jiaming Xu
影响因子:
6
作者:
Hajek, Bruce;Wu, Yihong;Xu, Jiaming
通讯作者:
Xu, Jiaming
DOI:
10.1214/19-aihp960
发表时间:
2020
期刊:
Probabilités et Statistiques
影响因子:
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作者:
Perry, Amelia;Wein, Alexander S.;Bandeira, Afonso S.
通讯作者:
Bandeira, Afonso S.