Efficient joint object matching via linear programming
Efficient joint object matching via linear programming
复制标题
通过线性规划进行高效的关节对象匹配
DOI:
10.1007/s10107-023-01932-w
复制
发表时间:
2023
影响因子:
2.7
通讯作者:
Khajavirad, Aida
中科院分区:
文献类型:
--
作者:
De Rosa, Antonio;Khajavirad, Aida
Joint object matching, also known as multi-image matching, namely, the problem of finding consistent partial maps among all pairs of objects within a collection, is a crucial task in many areas of computer vision. This problem subsumes bipartite graph matching and graph partitioning as special cases and is NP-hard, in general. We develop scalable linear programming (LP) relaxations with theoretical performance guarantees for joint object matching. We start by proposing a new characterization of consistent partial maps; this in turn enables us to formulate joint object matching as an integer linear programming (ILP) problem. To construct strong LP relaxations, we study the facial structure of the convex hull of the feasible region of this ILP, which we refer to as the joint matching polytope. We present an exponential family of facet-defining inequalities that can be separated in strongly polynomial time, hence obtaining a partial characterization of the joint matching polytope that is both tight and cheap to compute. To analyze the theoretical performance of the proposed LP relaxations, we focus on permutation group synchronization, an important special case of joint object matching. We show that under the random corruption model for the input maps, a simple LP relaxation, that is, an LP containing only a very small fraction of the proposed facet-defining inequalities, recovers the ground truth with high probability if the corruption level is below 40%. Finally, via a preliminary computational study on synthetic data, we show that the proposed LP relaxations outperform a popular SDP relaxation both in terms of recovery and tightness.
登录
查看更多内容
影响因子:
2.5
作者:
Hajek, Bruce;Wu, Yihong;Xu, Jiaming
通讯作者:
Xu, Jiaming
DOI:
10.1287/moor.2022.1282
发表时间:
2020
期刊:
Math. Oper. Res.
影响因子:
--
作者:
Alberto Del Pia;Aida Khajavirad;Dmitriy Kunisky
通讯作者:
Dmitriy Kunisky
影响因子:
3.1
作者:
De Rosa, Antonio;Khajavirad, Aida
通讯作者:
Khajavirad, Aida
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
DOI:
10.1145/2897518.2897573
发表时间:
2015
期刊:
Proceedings of the forty-eighth annual ACM symposium on Theory of Computing
影响因子:
--
作者:
Ankur Moitra;William Perry;Alexander S. Wein
通讯作者:
Alexander S. Wein