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EMNLP
2008
14 years 11 months ago
Attacking Decipherment Problems Optimally with Low-Order N-gram Models
We introduce a method for solving substitution ciphers using low-order letter n-gram models. This method enforces global constraints using integer programming, and it guarantees t...
Sujith Ravi, Kevin Knight
AMC
2004
95views more  AMC 2004»
14 years 9 months ago
Optimal multigrid solutions of two-dimensional convection-conduction problems
The present work investigates the efficiency of the multigrid numerical method when used to solve two-dimensional laminar velocity and temperature fields inside a rectangular doma...
Maximilian S. Mesquita, Marcelo J. S. de Lemos
CORR
2007
Springer
124views Education» more  CORR 2007»
14 years 9 months ago
Interpolation in Valiant's theory
We investigate the following question: if a polynomial can be evaluated at rational points by a polynomial-time boolean algorithm, does it have a polynomial-size arithmetic circuit...
Pascal Koiran, Sylvain Perifel
AMC
2010
111views more  AMC 2010»
14 years 10 months ago
Algebraic C*-actions and the inverse kinematics of a general 6R manipulator
Let X be a smooth quadric of dimension 2m in P2m+1 C and let Y, Z X be subvarieties both of dimension m which intersect transversely. In this paper we give an algorithm for comput...
Sandra Di Rocco, David Eklund, Andrew J. Sommese, ...
ADG
1998
Springer
127views Mathematics» more  ADG 1998»
15 years 2 months ago
Decomposing Algebraic Varieties
Abstract. This paper describes a complete implementation of Ritt-Wu's characteristic sets method in the Maple system. The implemented algorithms include those with variants fo...
Dongming Wang