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» On the Hardness of Being Truthful
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SODA
2010
ACM
214views Algorithms» more  SODA 2010»
14 years 4 months ago
Amplified Hardness of Approximation for VCG-Based Mechanisms
If a two-player social welfare maximization problem does not admit a PTAS, we prove that any maximal-in-range truthful mechanism that runs in polynomial time cannot achieve an app...
Shaddin Dughmi, Hu Fu, Robert Kleinberg
FOCS
2008
IEEE
14 years 1 months ago
Hardness of Minimizing and Learning DNF Expressions
We study the problem of finding the minimum size DNF formula for a function f : {0, 1}d → {0, 1} given its truth table. We show that unless NP ⊆ DTIME(npoly(log n) ), there i...
Subhash Khot, Rishi Saket
ISAAC
2007
Springer
92views Algorithms» more  ISAAC 2007»
14 years 1 months ago
Using Nash Implementation to Achieve Better Frugality Ratios
Most of the recent works on algorithmic mechanism design exploit the solution concept of dominant strategy equilibria. Such work designs a proper payment scheme so that selfish ag...
Chien-Chung Huang, Ming-Yang Kao, Xiang-Yang Li, W...
AAAI
2004
13 years 8 months ago
Hiding Satisfying Assignments: Two Are Better than One
The evaluation of incomplete satisfiability solvers depends critically on the availability of hard satisfiable instances. A plausible source of such instances consists of random k...
Dimitris Achlioptas, Haixia Jia, Cristopher Moore
STOC
2006
ACM
170views Algorithms» more  STOC 2006»
14 years 7 months ago
Hardness of approximate two-level logic minimization and PAC learning with membership queries
Producing a small DNF expression consistent with given data is a classical problem in computer science that occurs in a number of forms and has numerous applications. We consider ...
Vitaly Feldman