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MP
2011
13 years 4 months ago
An FPTAS for minimizing the product of two non-negative linear cost functions
We consider a quadratic programming (QP) problem (Π) of the form min xT Cx subject to Ax ≥ b where C ∈ Rn×n + , rank(C) = 1 and A ∈ Rm×n , b ∈ Rm . We present an FPTAS ...
Vineet Goyal, Latife Genç Kaya, R. Ravi
CORR
2010
Springer
164views Education» more  CORR 2010»
13 years 8 months ago
Is submodularity testable?
: We initiate the study of property testing of submodularity on the boolean hypercube. Submodular functions come up in a variety of applications in combinatorial optimization. For ...
C. Seshadhri, Jan Vondrák
IWOCA
2009
Springer
123views Algorithms» more  IWOCA 2009»
14 years 4 months ago
Computability of Width of Submodular Partition Functions
The notion of submodular partition functions generalizes many of well-known tree decompositions of graphs. For fixed k, there are polynomial-time algorithms to determine whether ...
Petr Skoda
ACL
2011
13 years 1 months ago
A Class of Submodular Functions for Document Summarization
We design a class of submodular functions meant for document summarization tasks. These functions each combine two terms, one which encourages the summary to be representative of ...
Hui Lin, Jeff Bilmes
CVPR
2008
IEEE
14 years 11 months ago
Exact inference in multi-label CRFs with higher order cliques
This paper addresses the problem of exactly inferring the maximum a posteriori solutions of discrete multi-label MRFs or CRFs with higher order cliques. We present a framework to ...
Srikumar Ramalingam, Pushmeet Kohli, Karteek Alaha...