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» Expressiveness and complexity of graph logic
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EDBT
2004
ACM
133views Database» more  EDBT 2004»
16 years 6 months ago
HOPI: An Efficient Connection Index for Complex XML Document Collections
In this paper we present HOPI, a new connection index for XML documents based on the concept of the 2?hop cover of a directed graph introduced by Cohen et al. In contrast to most o...
Ralf Schenkel, Anja Theobald, Gerhard Weikum
203
Voted
PODS
1994
ACM
138views Database» more  PODS 1994»
15 years 10 months ago
Dyn-FO: A Parallel, Dynamic Complexity Class
Traditionally, computational complexity has considered only static problems. Classical Complexity Classes such as NC, P, and NP are de ned in terms of the complexity of checking {...
Sushant Patnaik, Neil Immerman
CORR
2007
Springer
85views Education» more  CORR 2007»
15 years 6 months ago
A multivariate interlace polynomial
We define a multivariate polynomial that generalizes in a unified way the twovariable interlace polynomial defined by Arratia, Bollob´as and Sorkin on the one hand, and a one-...
Bruno Courcelle
ATVA
2007
Springer
108views Hardware» more  ATVA 2007»
16 years 8 days ago
A New Approach to Bounded Model Checking for Branching Time Logics
Abstract. Bounded model checking (BMC) is a technique for overcoming the state explosion problem which has gained wide industrial acceptance. Bounded model checking is typically ap...
Rotem Oshman, Orna Grumberg
GG
2008
Springer
15 years 7 months ago
Graph Transformation for Topology Modelling
In this paper we present meta-rules to express an infinite class of semantically related graph transformation rules in the context of pure topological modelling with G-maps. Our p...
Mathieu Poudret, Agnès Arnould, Jean-Paul C...