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» On A Graph Formalism for Ordered Edges
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60
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JCT
2007
85views more  JCT 2007»
14 years 9 months ago
Separating systems and oriented graphs of diameter two
We prove results on the size of weakly and strongly separating set systems and matrices, and on cross-intersecting systems. As a consequence, we improve on a result of Katona and ...
Béla Bollobás, Alex D. Scott
71
Voted
ASPDAC
2005
ACM
99views Hardware» more  ASPDAC 2005»
14 years 11 months ago
Implication of assertion graphs in GSTE
- We address the problem of implication of assertion graphs that occur in generalized symbolic trajectory evaluation (GSTE). GSTE has demonstrated its powerful capacity in formal v...
Guowu Yang, Jin Yang, William N. N. Hung, Xiaoyu S...
IJCAI
1989
14 years 10 months ago
Formal Properties and Implementation of Bidirectional Charts
Several theories of grammar currently converge toward inserting subcategorization information within lexical entries. Such a tendency would benefit from a parsing algorithm able t...
Giorgio Satta, Oliviero Stock
ENDM
2002
74views more  ENDM 2002»
14 years 9 months ago
Vertex Coverings by Coloured Induced Graphs - Frames and Umbrellas
A graph G homogeneously embeds in a graph H if for every vertex x of G and every vertex y of H there is an induced copy of G in H with x at y. The graph G uniformly embeds in H if...
Wayne Goddard, Michael A. Henning
SOFSEM
2009
Springer
15 years 6 months ago
The Shortcut Problem - Complexity and Approximation
During the last years, speed-up techniques for DIJKSTRA’s algorithm have been developed that make the computation of shortest paths a matter of microseconds even on huge road net...
Reinhard Bauer, Gianlorenzo D'Angelo, Daniel Delli...