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FAW
2008
Springer
127views Algorithms» more  FAW 2008»
14 years 11 months ago
Visiting a Polygon on the Optimal Way to a Query Point
Abstract. We study a constrained version of the shortest path problem in polygonal domains, in which the path must visit a given target polygon. We provide an efficient algorithm f...
Ramtin Khosravi, Mohammad Ghodsi
ECCC
2010
82views more  ECCC 2010»
14 years 10 months ago
On optimal proof systems and logics for PTIME
We prove that TAUT has a p-optimal proof system if and only if a logic related to least fixed-point logic captures polynomial time on all finite structures. Furthermore, we show t...
Yijia Chen, Jörg Flum
TIT
2010
107views Education» more  TIT 2010»
14 years 4 months ago
Optimal Error Correction for Computationally Bounded Noise
For adversarial but computationally bounded models of error, we construct appealingly simple and efficient cryptographic encoding and unique decoding schemes whose error-correctio...
Silvio Micali, Chris Peikert, Madhu Sudan, David A...
CORR
2008
Springer
92views Education» more  CORR 2008»
14 years 10 months ago
Universal Quantum Circuits
Abstract. We define and construct efficient depth-universal and almostsize-universal quantum circuits. Such circuits can be viewed as generalpurpose simulators for central classes ...
Debajyoti Bera, Stephen A. Fenner, Frederic Green,...
CORR
2008
Springer
97views Education» more  CORR 2008»
14 years 10 months ago
Power-Balanced Orthogonal Space-Time Block Code
In this paper, we propose two new systematic ways to construct amicable orthogonal designs (AOD), with an aim to facilitate the construction of power-balanced orthogonal spacetime ...
Chau Yuen, Yong Liang Guan, Tjeng Thiang Tjhung