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STACS
2012
Springer
14 years 1 months ago
The Denjoy alternative for computable functions
The Denjoy-Young-Saks Theorem from classical analysis states that for an arbitrary function f : R → R, the Denjoy alternative holds outside a null set, i.e., for almost every re...
Laurent Bienvenu, Rupert Hölzl, Joseph S. Mil...
ICDT
2012
ACM
235views Database» more  ICDT 2012»
13 years 8 months ago
Equivalence and minimization of conjunctive queries under combined semantics
The problems of query containment, equivalence, and minimization are recognized as very important in the context of query processing, specifically of query optimization. In their...
Rada Chirkova
ICDT
2012
ACM
251views Database» more  ICDT 2012»
13 years 8 months ago
Computing universal models under guarded TGDs
A universal model of a database D and a set Σ of integrity constraints is a database that extends D, satisfies Σ, and is most general in the sense that it contains sound and co...
André Hernich
CP
2005
Springer
15 years 12 months ago
Speeding Up Constrained Path Solvers with a Reachability Propagator
Constrained path problems have to do with finding paths in graphs subject to constraints. One way of constraining the graph is by enforcing reachability on nodes. For instance, i...
Luis Quesada, Peter Van Roy, Yves Deville
WWW
2004
ACM
16 years 7 months ago
A combined approach to checking web ontologies
The understanding of Semantic Web documents is built upon ontologies that define concepts and relationships of data. Hence, the correctness of ontologies is vital. Ontology reason...
Jin Song Dong, Chew Hung Lee, Hian Beng Lee, Yuan-...