22 search results - page 1 / 5 » Improved Inapproximability For Submodular Maximization |
CORR
2010
Springer
13 years 4 months ago
2010
Springer
We show that it is Unique Games-hard to approximate the maximum of a submodular function to within a factor 0.695, and that it is Unique Games-hard to approximate the maximum of a ...
FOCS
2009
IEEE
13 years 11 months ago
2009
IEEE
Abstract— A number of recent results on optimization problems involving submodular functions have made use of the ”multilinear relaxation” of the problem [3], [8], [24], [14]...
STOC
2012
ACM
11 years 7 months ago
2012
ACM
We consider submodular optimization problems, and provide a general way of translating oracle inapproximability results arising from the symmetry gap technique to computational co...
WINE
2005
Springer
13 years 10 months ago
2005
Springer
We consider the following allocation problem arising in the setting of combinatorial auctions: a set of goods is to be allocated to a set of players so as to maximize the sum of t...
CORR
2010
Springer
13 years 4 months ago
2010
Springer
We consider the problem of maximizing a nonnegative (possibly non-monotone) submodular set function with or without constraints. Feige et al. [9] showed a 2/5-approximation for th...