Structural inference of time‐varying mixed graphical models
Structural inference of time‐varying mixed graphical models
复制标题
时变混合图模型的结构推理
作者:
Liu, Q.;Zhang, Y.;Ouyang, Z.
With the rapid advancement of biotechnology, there arise new challenges to discover regulatory and co‐action relationships among heterogeneous biological features as well as to capture significant topological changes when data are observed across time. This paper is devoted to joint structural estimation of time‐varying mixed graphical models based on multivariate data over a series of time points. Assuming the graph topology changes gradually over time, we establish a flexible local estimator to fully exploit the structural smoothness. Utilizing variational likelihood inference, we impose a group lasso penalty to integrate information from nearby time points. In order to reduce the algorithmic complexity, we propose an accelerated alternating direction method of multipliers (ADMM)‐based algorithm exploiting the block diagonal structure to adapt our problem for large sparse networks. Practical merits of our method are exhibited through synthetic networks with mixed data types. Ultimately, we illustrate the real application by incorporating multi‐platform data from the PsychENCODE human brain development project and detect the evolution of gene regulatory networks along different stages of human brain development.
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影响因子:
32.8
作者:
Wainwright, Martin J.;Jordan, Michael I.
通讯作者:
Jordan, Michael I.
DOI:
--
发表时间:
2017
期刊:
Proceedings of machine learning research
影响因子:
--
作者:
Park,Youngsuk;Hallac,David;Boyd,Stephen;Leskovec,Jure
通讯作者:
Leskovec,Jure
DOI:
10.1109/jsait.2020.3042124
发表时间:
2020
期刊:
IEEE Journal on Selected Areas in Information Theory
影响因子:
--
作者:
Liu, Qingyang;Zhang, Yuping
通讯作者:
Zhang, Yuping
DOI:
10.1214/16-aoas998
发表时间:
2017-03
期刊:
The annals of applied statistics
影响因子:
--
作者:
Yuping Zhang;Z. Ouyang;Hongyu Zhao
通讯作者:
Yuping Zhang;Z. Ouyang;Hongyu Zhao
DOI:
--
发表时间:
2012
期刊:
IEEE International Conference on Bioinformatics and Biomedicine
影响因子:
--
作者:
Genevera I. Allen;Zhandong Liu
通讯作者:
Zhandong Liu