22 search results - page 1 / 5 » Improved Inapproximability For Submodular Maximization |
CORR
2010
Springer
13 years 10 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
14 years 5 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
12 years 1 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
14 years 4 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 11 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...