Separating the communication complexity of truthful and non-truthful combinatorial auctions
Separating the communication complexity of truthful and non-truthful combinatorial auctions
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区分真实和非真实组合拍卖的通信复杂性
DOI:
10.1145/3357713.3384267
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Weinberg, S. Matthew
中科院分区:
文献类型:
--
作者:
Assadi, Sepehr;Khandeparkar, Hrishikesh;Saxena, Raghuvansh R.;Weinberg, S. Matthew
We prove the first separation in the approximation guarantee achievable by truthful and non-truthful combinatorial auctions with polynomial communication. Specifically, we prove that any truthful auction guaranteeing a (34−1240+є)-approximation for two buyers with XOS valuations overmitems requires exp(Ω(ε2·m)) communication whereas a non-truthful auction by Feige [J. Comput.2009] is already known to achieve a 34-approximation in (m) communication.We obtain our lower bound for truthful auctions by proving that any simultaneous auction (not necessarily truthful) which guarantees a (34−1240+ε)-approximation requires communication exp(Ω(ε2·m)), and then apply the taxation complexity framework of Dobzinski [FOCS 2016] to extend the lower bound to all truthful auctions (including interactive truthful auctions).
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影响因子:
2.5
作者:
Shahar Dobzinski;Jan Vondrák
通讯作者:
Jan Vondrák
DOI:
10.1109/focs.2019.00025
发表时间:
2019
期刊:
Foundations of Computer Science
影响因子:
--
作者:
Ezra, Tomer;Feldman, Michal;Neyman, Eric;Talgam-Cohen, Inbal;Weinberg, Matt
通讯作者:
Weinberg, Matt
DOI:
--
发表时间:
2012
期刊:
Symposium on the Theory of Computing
影响因子:
--
作者:
Shahar Dobzinski;J. Vondrák
通讯作者:
J. Vondrák
DOI:
--
发表时间:
2016
期刊:
IEEE Annual Symposium on Foundations of Computer Science
影响因子:
--
作者:
Shahar Dobzinski
通讯作者:
Shahar Dobzinski
DOI:
10.1137/1.9781611976465.40
发表时间:
2020
期刊:
Proceedings of the 53rd Annual ACM SIGACT Symposium on Theory of Computing
影响因子:
--
作者:
Sepehr Assadi;Thomas Kesselheim;Sahil Singla
通讯作者:
Sahil Singla