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TDM
2004
174views Database» more  TDM 2004»
15 years 3 months ago
Relational Approach to Logical Query Optimization of XPath
To be able to handle the ever growing volumes of XML documents, effective and efficient data management solutions are needed. Managing XML data in a relational DBMS has great pote...
Maurice van Keulen
ESOP
2006
Springer
15 years 5 months ago
Step-Indexed Syntactic Logical Relations for Recursive and Quantified Types
We present a sound and complete proof technique, based on syntactic logical relations, for showing contextual equivalence of expressions in a -calculus with recursive types and imp...
Amal J. Ahmed
ENTCS
2010
120views more  ENTCS 2010»
15 years 2 months ago
Undecidability of the Logic of Overlap Relation over Discrete Linear Orderings
The validity/satisfiability problem for most propositional interval temporal logics is (highly) undecidable, under very weak assumptions on the class of interval structures in whi...
Davide Bresolin, Dario Della Monica, Valentin Gora...
MSCS
2008
97views more  MSCS 2008»
15 years 1 months ago
Logical relations for monadic types
Abstract. Software security can be ensured by specifying and verifying security properties of software using formal methods with strong theoretical bases. In particular, programs c...
Jean Goubault-Larrecq, Slawomir Lasota, David Nowa...
AAAI
2007
15 years 4 months ago
Generality and Equivalence Relations in Default Logic
Generality or refinement relations between different theories have important applications to generalization in inductive logic programming, refinement of ontologies, and coordin...
Katsumi Inoue, Chiaki Sakama