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SIGMOD
1999
ACM
132views Database» more  SIGMOD 1999»
14 years 28 days 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
LACL
1998
Springer
14 years 25 days ago
Strict Compositionality and Literal Movement Grammars
Abstract. The principle of compositionality, as standardly defined, regards grammars as compositional that are not compositional in an intuitive sense of the word. There is, for ex...
Marcus Kracht
LICS
1997
IEEE
14 years 25 days ago
Ground Reducibility is EXPTIME-Complete
Abstract. We prove that ground reducibility is EXPTIME-complete in the general case. EXPTIME-hardness is proved by encoding the emptiness problem for the intersection of recognizab...
Hubert Comon, Florent Jacquemard
TAPSOFT
1997
Springer
14 years 23 days ago
The Railroad Crossing Problem: Towards Semantics of Timed Algorithms and Their Model Checking in High Level Languages
The goal of this paper is to analyse semantics of algorithms with explicit continuous time with further aim to nd approaches to automatize model checking in high level, easily unde...
Danièle Beauquier, Anatol Slissenko
CADE
1994
Springer
14 years 22 days ago
Simple Termination Revisited
In this paper we investigate the concept of simple termination. A term rewriting system is called simply terminating if its termination can be proved by means of a simpli cation o...
Aart Middeldorp, Hans Zantema