The Geometry of Synchronization Problems and Learning Group Actions
The Geometry of Synchronization Problems and Learning Group Actions
复制标题
同步问题的几何形状和学习小组行动
DOI:
--
复制
发表时间:
2016
影响因子:
0.8
通讯作者:
S. Mukherjee
中科院分区:
文献类型:
--
作者:
Tingran Gao;J. Brodzki;S. Mukherjee
We develop a geometric framework, based on the classical theory of fibre bundles, to characterize the cohomological nature of a large class of synchronization-type problems in the context of graph inference and combinatorial optimization. We identify each synchronization problem in topological group G on connected graph Γ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\Gamma $$\end{document} with a flat principal G-bundle over Γ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\Gamma $$\end{document}, thus establishing a classification result for synchronization problems using the representation variety of the fundamental group of Γ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\Gamma $$\end{document} into G. We then develop a twisted Hodge theory on flat vector bundles associated with these flat principal G-bundles, and provide a geometric realization of the graph connection Laplacian as the lowest-degree Hodge Laplacian in the twisted de Rham–Hodge cochain complex. Motivated by these geometric intuitions, we propose to study the problem of learning group actions—partitioning a collection of objects based on the local synchronizability of pairwise correspondence relations—and provide a heuristic synchronization-based algorithm for solving this type of problems. We demonstrate the efficacy of this algorithm on simulated and real datasets.
登录
查看更多内容
影响因子:
2.5
作者:
Singer, A.
通讯作者:
Singer, A.
DOI:
10.1073/pnas.0500334102
发表时间:
2005-05-24
影响因子:
11.1
作者:
Coifman, RR;Lafon, S;Zucker, SW
通讯作者:
Zucker, SW
影响因子:
2.5
作者:
Singer,Amit;Wu,Hau-Tieng
通讯作者:
Wu,Hau-Tieng
DOI:
--
发表时间:
2018
期刊:
Proceedings of machine learning research
影响因子:
--
作者:
Bajaj,Chandrajit;Gao,Tingran;He,Zihang;Huang,Qixing;Liang,Zhenxiao
通讯作者:
Liang,Zhenxiao
影响因子:
3.6
作者:
Gao, Tingran;Kovalsky, Shahar Z.;Daubechies, Ingrid
通讯作者:
Daubechies, Ingrid