Sciweavers

464 search results - page 30 / 93
» Modeling Semantic Constraints with Logic in the EARL Data Mo...
Sort
View
CCGRID
2005
IEEE
14 years 1 months ago
Semantic integration of file-based data for grid services
Data services for the Grid have focussed so far primarily on virtualising access to distributed databases, and encapsulating file location. However, orchestration of services requ...
Andrew Woolf, Ray Cramer, Marta Gutierrez, Kerstin...
ATVA
2010
Springer
128views Hardware» more  ATVA 2010»
13 years 8 months ago
What's Decidable about Sequences?
Abstract. We present a first-order theory of (finite) sequences with integer elements, Presburger arithmetic, and regularity constraints, which can model significant properties of ...
Carlo A. Furia
EKAW
2004
Springer
14 years 24 days ago
Extending Semantic-Based Matchmaking via Concept Abduction and Contraction
Motivated by the need to extend features of semantic matchmaking between request and offer descriptions, a model is presented that exploits recently proposed non-standard inference...
Tommaso Di Noia, Eugenio Di Sciascio, Francesco M....
VL
2002
IEEE
105views Visual Languages» more  VL 2002»
14 years 9 days ago
A Visual Framework for Modelling with Heterogeneous Notations
There is a range of modelling notations, both textual and diagrammatic, whose semantics are based on first-order predicate logic. This paper presents a visual framework for organ...
Jean Flower, John Howse, John Taylor, Stuart Kent
ICDT
2012
ACM
251views Database» more  ICDT 2012»
11 years 9 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