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ENTCS
2008
99views more  ENTCS 2008»
15 years 4 months ago
SPPF-Style Parsing From Earley Recognisers
In its recogniser form, Earley's algorithm for testing whether a string can be derived from a grammar is worst case cubic on general context free grammars (CFG). Earley gave ...
Elizabeth Scott
CORR
2006
Springer
123views Education» more  CORR 2006»
15 years 4 months ago
Counting good truth assignments of random k-SAT formulae
We present a deterministic approximation algorithm to compute logarithm of the number of `good' truth assignments for a random k-satisfiability (k-SAT) formula in polynomial ...
Andrea Montanari, Devavrat Shah
145
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CAD
2007
Springer
15 years 4 months ago
Generating strictly non-self-overlapping structured quadrilateral grids
In this paper, we present a BPM (Bézier Patch Mapping) algorithm which generates a strictly non-self-overlapping structured quadrilateral grid in a given four-sided planar region...
Hongwei Lin, Kai Tang, Ajay Joneja, Hujun Bao
JCO
2006
103views more  JCO 2006»
15 years 4 months ago
On optimal placement of relay nodes for reliable connectivity in wireless sensor networks
The paper addresses the relay node placement problem in two-tiered wireless sensor networks. Given a set of sensor nodes in Euclidean plane, our objective is to place minimum numbe...
Hai Liu, Peng-Jun Wan, Xiaohua Jia
JACM
2007
115views more  JACM 2007»
15 years 4 months ago
Optimal pants decompositions and shortest homotopic cycles on an orientable surface
We consider the problem of finding a shortest cycle (freely) homotopic to a given simple cycle on a compact, orientable surface. For this purpose, we use a pants decomposition of...
Éric Colin de Verdière, Francis Laza...