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» A Linear-Logic Semantics for Constraint Handling Rules
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ACL
1990
15 years 23 days ago
Lexical and Syntactic Rules in a Tree Adjoining Grammar
according to this definition2. Each elementary tree is constrained to have at least one terminal at its frontier which serves as 'head' (or 'anchor'). Sentence...
Anne Abeillé
SIGMOD
1999
ACM
132views Database» more  SIGMOD 1999»
15 years 3 months ago
Mind Your Vocabulary: Query Mapping Across Heterogeneous Information Sources
In this paper we present a mechanism for translating constraint queries, i.e., Boolean expressions of constraints, across heterogeneous information sources. Integrating such syste...
Kevin Chen-Chuan Chang, Hector Garcia-Molina
COOPIS
2003
IEEE
15 years 4 months ago
Ontology Based Query Processing in Database Management Systems
The use of semantic knowledge in its various forms has become an important aspect in managing data in database and information systems. In the form of integrity constraints, it ha...
Chokri Ben Necib, Johann Christoph Freytag
ENTCS
2008
106views more  ENTCS 2008»
14 years 11 months ago
Towards a Sharing Strategy for the Graph Rewriting Calculus
The graph rewriting calculus is an extension of the -calculus, handling graph like structures rather than simple terms. The calculus over terms is naturally generalized by using u...
Paolo Baldan, Clara Bertolissi, Horatiu Cirstea, C...
ICLP
2005
Springer
15 years 5 months ago
A Type System for CHR
Abstract. We propose a generic type system for the Constraint Handling Rules (CHR), a rewriting rule language for implementing constraint solvers. CHR being a high-level extension ...
Emmanuel Coquery, François Fages