TY - GEN
T1 - Inapproximability of truthful mechanisms via generalizations of the VC dimension
AU - Daniely, Amit
AU - Schapira, Michael
AU - Shahaf, Gal
N1 - Publisher Copyright: © Copyright 2015 ACM.
PY - 2015/6/14
Y1 - 2015/6/14
N2 - Algorithmic mechanism design (AMD) studies the delicate interplay between computational efficiency, truthfulness, and optimality. We focus on AMD's paradigmatic problem: combinatorial auctions. We present a new generalization of the VC dimension to multivalued collections of functions, which encompasses the classical VC dimension, Natarajan dimension, and Steele dimension. We present a corresponding generalization of the Sauer-Shelah Lemma and harness this VC machinery to establish inapproximability results for deterministic truthful mechanisms. Our results essentially unify all inapproximability results for deterministic truthful mechanisms for combinatorial auctions to date and establish new separation gaps between truthful and non-truthful algorithms.
AB - Algorithmic mechanism design (AMD) studies the delicate interplay between computational efficiency, truthfulness, and optimality. We focus on AMD's paradigmatic problem: combinatorial auctions. We present a new generalization of the VC dimension to multivalued collections of functions, which encompasses the classical VC dimension, Natarajan dimension, and Steele dimension. We present a corresponding generalization of the Sauer-Shelah Lemma and harness this VC machinery to establish inapproximability results for deterministic truthful mechanisms. Our results essentially unify all inapproximability results for deterministic truthful mechanisms for combinatorial auctions to date and establish new separation gaps between truthful and non-truthful algorithms.
UR - http://www.scopus.com/inward/record.url?scp=84942452273&partnerID=8YFLogxK
U2 - 10.1145/2746539.2746597
DO - 10.1145/2746539.2746597
M3 - منشور من مؤتمر
T3 - Proceedings of the Annual ACM Symposium on Theory of Computing
SP - 401
EP - 408
BT - STOC 2015 - Proceedings of the 2015 ACM Symposium on Theory of Computing
T2 - 47th Annual ACM Symposium on Theory of Computing, STOC 2015
Y2 - 14 June 2015 through 17 June 2015
ER -