CORR
2012
Springer
12 years 7 months ago
2012
Springer
We present a new type of monotone submodular functions: multi-peak submodular functions. Roughly speaking, given a family of sets F, we construct a monotone submodular function f ...
ACL
2011
13 years 3 months ago
2011
We cast the word alignment problem as maximizing a submodular function under matroid constraints. Our framework is able to express complex interactions between alignment component...
ACL
2011
13 years 3 months ago
2011
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 ...
CORR
2010
Springer
13 years 9 months ago
2010
Springer
We consider a class of sparsity-inducing regularization terms based on submodular functions. While earlier work has focused on non-decreasing functions, we explore symmetric submo...
FSTTCS
2010
Springer
13 years 9 months ago
2010
Springer
ABSTRACT. Motivated by economic thought, a recent research agenda has suggested the algorithmic study of combinatorial optimization problems under functions which satisfy the prope...
CORR
2010
Springer
13 years 9 months ago
2010
Springer
We study a novel class of mechanism design problems in which the outcomes are constrained by the payments. This basic class of mechanism design problems captures many common econom...
CORR
2010
Springer
13 years 11 months ago
2010
Springer
Many combinatorial problems arising in machine learning can be reduced to the problem of minimizing a submodular function. Submodular functions are a natural discrete analog of co...
FOCS
2007
IEEE
14 years 5 months ago
2007
IEEE
Submodular maximization generalizes many important problems including Max Cut in directed/undirected graphs and hypergraphs, certain constraint satisfaction problems and maximum f...
FOCS
2008
IEEE
14 years 6 months ago
2008
IEEE
We introduce several generalizations of classical computer science problems obtained by replacing simpler objective functions with general submodular functions. The new problems i...