Title
MRF inference by k-fan decomposition and tight Lagrangian relaxation
Abstract
We present a novel dual decomposition approach to MAP inference with highly connected discrete graphical models. Decompositions into cyclic k-fan structured subproblems are shown to significantly tighten the Lagrangian relaxation relative to the standard local polytope relaxation, while enabling efficient integer programming for solving the subproblems. Additionally, we introduce modified update rules for maximizing the dual function that avoid oscillations and converge faster to an optimum of the relaxed problem, and never get stuck in nonoptimal fixed points.
Year
DOI
Venue
2010
10.1007/978-3-642-15558-1_53
ECCV (3)
Keywords
Field
DocType
nonoptimal fixed point,efficient integer programming,novel dual decomposition approach,mrf inference,discrete graphical model,standard local polytope relaxation,k-fan decomposition,cyclic k-fan,dual function,update rule,map inference,lagrangian relaxation,tight lagrangian relaxation,graphical model,oscillations,fixed point
Applied mathematics,Computer science,Markov random field,Polytope,Integer programming,Artificial intelligence,Fixed point,Lagrangian relaxation,Computer vision,Mathematical optimization,Inference,Graphical model,Linear programming relaxation
Conference
Volume
ISSN
ISBN
6313
0302-9743
3-642-15557-X
Citations 
PageRank 
References 
8
0.45
16
Authors
3
Name
Order
Citations
PageRank
Jörg Hendrik Kappes1985.58
Stefan Schmidt215410.01
Christoph Schnörr33025219.34