Title
Tighter Linear Program Relaxations for High Order Graphical Models.
Abstract
Graphical models with High Order Potentials (HOPs) have received considerable interest in recent years. While there are a variety of approaches to inference in these models, nearly all of them amount to solving a linear program (LP) relaxation with unary consistency constraints between the HOP and the individual variables. In many cases, the resulting relaxations are loose, and in these cases the results of inference can be poor. It is thus desirable to look for more accurate ways of performing inference in these models. In this work, we study the LP relaxations that result from enforcing additional consistency constraints between the HOP and the rest of the model. We address theoretical questions about the strength of the resulting relaxations compared to the relaxations that arise in standard approaches, and we develop practical and efficient message passing algorithms for optimizing the LPs. Empirically, we show that the LPs with additional consistency constraints lead to more accurate inference on some challenging problems that include a combination of low order and high order terms.
Year
Venue
DocType
2013
UAI
Journal
Volume
Citations 
PageRank 
abs/1309.6848
5
0.42
References 
Authors
34
4
Name
Order
Citations
PageRank
Mezuman, Elad1241.54
Daniel Tarlow251431.62
Amir Globerson31515117.72
Yair Weiss410240834.60