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CORR
2004
Springer
104views Education» more  CORR 2004»
14 years 8 days ago
Inapproximability of Combinatorial Optimization Problems
We survey results on the hardness of approximating combinatorial optimization problems. Contents
Luca Trevisan
ECCC
2006
116views more  ECCC 2006»
14 years 13 days ago
Uniform Hardness Amplification in NP via Monotone Codes
We consider the problem of amplifying uniform average-case hardness of languages in NP, where hardness is with respect to BPP algorithms. We introduce the notion of monotone error...
Joshua Buresh-Oppenheim, Valentine Kabanets, Rahul...
APPROX
2010
Springer
154views Algorithms» more  APPROX 2010»
14 years 2 months ago
The Checkpoint Problem
In this paper, we consider the checkpoint problem in which given an undirected graph G, a set of sourcedestinations {(s1, t1), (s1, t1), . . . , (sk, tk)} and a set of fixed paths...
MohammadTaghi Hajiaghayi, Rohit Khandekar, Guy Kor...
ASIACRYPT
2008
Springer
14 years 2 months ago
Sufficient Conditions for Intractability over Black-Box Groups: Generic Lower Bounds for Generalized DL and DH Problems
Abstract. The generic (aka. black-box) group model is a valuable methodology for analyzing the computational hardness of number-theoretic problems used in cryptography. Since the p...
Andy Rupp, Gregor Leander, Endre Bangerter, Alexan...
COCO
2006
Springer
93views Algorithms» more  COCO 2006»
14 years 4 months ago
Making Hard Problems Harder
We consider a general approach to the hoary problem of (im)proving circuit lower bounds. We define notions of hardness condensing and hardness extraction, in analogy to the corres...
Joshua Buresh-Oppenheim, Rahul Santhanam
IROS
2008
IEEE
129views Robotics» more  IROS 2008»
14 years 6 months ago
Recognizing texture and hardness by touch
Abstract— We have experimented with different neural network based architectures for bio-inspired self-organizing texture and hardness perception systems. To this end we have dev...
Magnus Johnsson, Christian Balkenius
HAPTICS
2008
IEEE
14 years 7 months ago
Kinaesthetic and Cutaneous Contributions to the Perception of Compressibility
Abstract. Compressibility or hardness of objects is an important aspect in haptic perception. Both cutaneous and kinaesthetic information are used for the perception of compressibi...
Wouter M. Bergmann Tiest, Astrid M. L. Kappers