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EDBT
2004
ACM
155views Database» more  EDBT 2004»
14 years 10 months ago
Processing Unions of Conjunctive Queries with Negation under Limited Access Patterns
We study the problem of answering queries over sources with limited access patterns. The problem is to decide whether a given query Q is feasible, i.e., equivalent to an executable...
Alan Nash, Bertram Ludäscher
LATA
2009
Springer
14 years 5 months ago
Rigid Tree Automata
We introduce the class of Rigid Tree Automata (RTA), an extension of standard bottom-up automata on ranked trees with distinguished states called rigid. Rigid states define a rest...
Florent Jacquemard, Francis Klay, Camille Vacher
SAGT
2009
Springer
112views Game Theory» more  SAGT 2009»
14 years 4 months ago
On the Complexity of Iterated Weak Dominance in Constant-Sum Games
Abstract. In game theory, a player’s action is said to be weakly dominated if there exists another action that, with respect to what the other players do, is never worse and some...
Felix Brandt, Markus Brill, Felix A. Fischer, Paul...
BPM
2007
Springer
201views Business» more  BPM 2007»
14 years 4 months ago
Towards Formal Analysis of Artifact-Centric Business Process Models
Abstract. Business process (BP) modeling is a building block for design and management of business processes. Two fundamental aspects of BP modeling are: a formal framework that we...
Kamal Bhattacharya, Cagdas Evren Gerede, Richard H...
CONCUR
2007
Springer
14 years 4 months ago
Causal Message Sequence Charts
Scenario languages based on Message Sequence Charts (MSCs) have been widely studied in the last decade [21,20,3,15,12,19,14]. The high expressive power of MSCs renders many basic ...
Thomas Gazagnaire, Blaise Genest, Loïc H&eacu...