Optimal Permutation Recovery in Permuted Monotone Matrix Model.
Optimal Permutation Recovery in Permuted Monotone Matrix Model.
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DOI:
10.1080/01621459.2020.1713794
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发表时间:
2021
影响因子:
3.7
通讯作者:
Li H
中科院分区:
文献类型:
--
作者:
Ma R;Cai TT;Li H
Motivated by recent research on quantifying bacterial growth dynamics based on genome assemblies, we consider a permuted monotone matrix model Y = ΘΠ+ Z, where the rows represent different samples, the columns represent contigs in genome assemblies and the elements represent log-read counts after preprocessing steps and Guanine-Cytosine (GC) adjustment. In this model, Θ is an unknown mean matrix with monotone entries for each row, Π is a permutation matrix that permutes the columns of Θ, and Z is a noise matrix. This paper studies the problem of estimation/recovery of Π given the observed noisy matrix Y. We propose an estimator based on the best linear projection, which is shown to be minimax rate-optimal for both exact recovery, as measured by the 0–1 loss, and partial recovery, as quantified by the normalized Kendall’s tau distance. Simulation studies demonstrate the superior empirical performance of the proposed estimator over alternative methods. We demonstrate the methods using a synthetic metagenomics dataset of 45 closely related bacterial species and a real metagenomic dataset to compare the bacterial growth dynamics between the responders and the non-responders of the IBD patients after 8 weeks of treatment.
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影响因子:
4.5
作者:
Cai, T. Tony;Zhang, Anru
通讯作者:
Zhang, Anru
影响因子:
30.3
作者:
Lewis JD;Chen EZ;Baldassano RN;Otley AR;Griffiths AM;Lee D;Bittinger K;Bailey A;Friedman ES;Hoffmann C;Albenberg L;Sinha R;Compher C;Gilroy E;Nessel L;Grant A;Chehoud C;Li H;Wu GD;Bushman FD
通讯作者:
Bushman FD
DOI:
10.1111/j.2517-6161.1977.tb01624.x
发表时间:
1977-01-01
期刊:
JOURNAL OF THE ROYAL STATISTICAL SOCIETY SERIES B-METHODOLOGICAL
影响因子:
--
作者:
DIACONIS, P;GRAHAM, RL
通讯作者:
GRAHAM, RL
影响因子:
1.5
作者:
Flammarion, Nicolas;Mao, Cheng;Rigollet, Philippe
通讯作者:
Rigollet, Philippe
影响因子:
2.5
作者:
Mazumdar, Arya;Barg, Alexander;Zemor, Gilles
通讯作者:
Zemor, Gilles