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» On maximizing welfare when utility functions are subadditive
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STOC
2006
ACM
131views Algorithms» more  STOC 2006»
16 years 3 months ago
On maximizing welfare when utility functions are subadditive
We consider the problem of maximizing welfare when allocating m items to n players with subadditive utility functions. Our main result is a way of rounding any fractional solution...
Uriel Feige
WINE
2005
Springer
182views Economy» more  WINE 2005»
15 years 8 months ago
Inapproximability Results for Combinatorial Auctions with Submodular Utility Functions
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...
Subhash Khot, Richard J. Lipton, Evangelos Markaki...
SIGECOM
2008
ACM
155views ECommerce» more  SIGECOM 2008»
15 years 3 months ago
Tight information-theoretic lower bounds for welfare maximization in combinatorial auctions
We provide tight information-theoretic lower bounds for the welfare maximization problem in combinatorial auctions. In this problem, the goal is to partition m items among k bidde...
Vahab S. Mirrokni, Michael Schapira, Jan Vondr&aac...
AAAI
2010
15 years 4 months ago
Voting Almost Maximizes Social Welfare Despite Limited Communication
In cooperative multiagent systems an alternative that maximizes the social welfare--the sum of utilities--can only be selected if each agent reports its full utility function. Thi...
Ioannis Caragiannis, Ariel D. Procaccia
WINE
2010
Springer
189views Economy» more  WINE 2010»
15 years 1 months ago
Approximation Algorithms for Non-single-minded Profit-Maximization Problems with Limited Supply
We consider profit-maximization problems for combinatorial auctions with non-single minded valuation functions and limited supply. We obtain fairly general results that relate the ...
Khaled M. Elbassioni, Mahmoud Fouz, Chaitanya Swam...