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131
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POPL
2000
ACM
15 years 7 months ago
Modular Refinement of Hierarchic Reactive Machines
with existing analysis tools. Modular reasoning principles such as abstraction, compositional refinement, and assume-guarantee reasoning are well understood for architectural hiera...
Rajeev Alur, Radu Grosu
VLDB
1987
ACM
108views Database» more  VLDB 1987»
15 years 7 months ago
Translating and Optimizing SQL Queries Having Aggregates
is at least ae powerful as SQL. Two well known relational query languages that have a sound theoretical foundation are relational algebra and relational calculus. As SQL is more cl...
Günter von Bültzingsloewen
154
Voted
ICPW
2007
15 years 5 months ago
Mind the gap!: Transcending the tunnel view on ontology engineering
The key objective of communal knowledge sharing at the scale of the World Wide Web is the ability to collaborate and integrate within and between communities. Ontologies, being fo...
Pieter De Leenheer, Stijn Christiaens
IJCAI
2007
15 years 4 months ago
A Logical Framework for Modularity of Ontologies
Modularity is a key requirement for collaborative ontology engineering and for distributed ontology reuse on the Web. Modern ontology languages, such as OWL, are logic-based, and ...
Bernardo Cuenca Grau, Ian Horrocks, Yevgeny Kazako...
146
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OWLED
2008
15 years 4 months ago
Representing Product Designs Using a Description Graph Extension to OWL 2
Product development requires the ability to check design consistency, to verify design properties, and to answer questions about a design's possible implementations. These tas...
Henson Graves