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» Local Computation: Lower and Upper Bounds
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COCO
2009
Springer
105views Algorithms» more  COCO 2009»
16 years 20 days ago
Planar Graph Isomorphism is in Log-Space
Graph Isomorphism is the prime example of a computational problem with a wide difference between the best known lower and upper bounds on its complexity. There is a significant ...
Samir Datta, Nutan Limaye, Prajakta Nimbhorkar, Th...
MFCS
2004
Springer
15 years 11 months ago
Complexity of Decision Problems for Simple Regular Expressions
We study the complexity of the inclusion, equivalence, and intersection problem for simple regular expressions arising in practical XML schemas. These basically consist of the conc...
Wim Martens, Frank Neven, Thomas Schwentick
ESA
2005
Springer
99views Algorithms» more  ESA 2005»
15 years 11 months ago
Optimizing a 2D Function Satisfying Unimodality Properties
The number of probes needed by the best possible algorithm for locally or globally optimizing a bivariate function varies substantially depending on the assumptions made about the ...
Erik D. Demaine, Stefan Langerman
AUTOMATICA
2004
147views more  AUTOMATICA 2004»
15 years 6 months ago
Interval analysis and dioid: application to robust controller design for timed event graphs
This paper deals with feedback controller synthesis for timed event graphs in dioids, where the number of initial tokens and time delays are only known to belong to intervals. We ...
Mehdi Lhommeau, Laurent Hardouin, Bertrand Cottenc...
DCOSS
2009
Springer
15 years 10 months ago
Local Construction of Spanners in the 3-D Space
Abstract. In this paper we present local distributed algorithms for constructing spanners in wireless sensor networks modeled as unit ball graphs (shortly UBGs) and quasi-unit ball...
Iyad A. Kanj, Ge Xia, Fenghui Zhang