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» Composition of Semantic Relations: Model and Applications
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SDB
1995
178views Database» more  SDB 1995»
15 years 3 months ago
A Semantics-based Approach to Design of Query Languages for Partial Information
Most of work on partial information in databases asks which operations of standard languages, like relational algebra, can still be performed correctly in the presence of nulls. In...
Leonid Libkin
COSIT
1997
Springer
115views GIS» more  COSIT 1997»
15 years 4 months ago
Qualitative Representation of Change
Current geographic information systems (GISs) have been designed for querying and maintaining static databases representing static phenomena and give little support to those users ...
Kathleen Hornsby, Max J. Egenhofer
TCS
2008
14 years 11 months ago
A timed semantics of Orc
Orc is a kernel language for structured concurrent programming. Orc provides three powerful combinators that define the structure of a concurrent computation. These combinators su...
Ian Wehrman, David Kitchin, William R. Cook, Jayad...
ISF
2007
105views more  ISF 2007»
14 years 11 months ago
COSMO: A conceptual framework for service modelling and refinement
This paper presents a conceptual framework for service modelling and refinement, called the COSMO (COnceptual Service MOdelling) framework. This framework provides concepts to mode...
Dick A. C. Quartel, Maarten W. A. Steen, Stanislav...
JSAI
2005
Springer
15 years 5 months ago
Towards Ontologies of Functionality and Semantic Annotation for Technical Knowledge Management
Abstract. This research aims at promoting sharing of knowledge about functionality of artifacts among engineers, which tends to be implicit in practice. In order to provide a conce...
Yoshinobu Kitamura, Naoya Washio, Yusuke Koji, Rii...