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LCC
1994
213views Algorithms» more  LCC 1994»
15 years 10 months ago
Linear Constraint Query Languages: Expressive Power and Complexity
We give an AC0 upper bound on the complexity of rst-oder queries over (in nite) databases de ned by restricted linear constraints. This result enables us to deduce the non-expressi...
Stéphane Grumbach, Jianwen Su, Christophe T...
COMPGEOM
1995
ACM
15 years 10 months ago
Representation and Computation of Boolean Combinations of Sculptured Models
We outline an algorithm and implementation of a system that computes Boolean combinations of sculptured solids. We represent the surface of the solids in terms of trimmed and untr...
Shankar Krishnan, Atul Narkhede, Dinesh Manocha
SODA
2007
ACM
127views Algorithms» more  SODA 2007»
15 years 8 months ago
Line-of-sight networks
Random geometric graphs have been one of the fundamental models for reasoning about wireless networks: one places n points at random in a region of the plane (typically a square o...
Alan M. Frieze, Jon M. Kleinberg, R. Ravi, Warren ...
WSC
1997
15 years 8 months ago
Visualize a Port in Africa
Techniques to visualize quantitative discrete event simulation input and output data are presented. General concepts connected with graphical excellence are discussed in a simulat...
James N. Robinson
APPML
2006
73views more  APPML 2006»
15 years 6 months ago
Threshold arrangements and the knapsack problem
We show that a combinatorial question which has been studied in connection with lower bounds for the knapsack problem by Brimkov and Dantchev (2001) is related to threshold graphs...
Günter Rote, André Schulz