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PODS
2010
ACM
249views Database» more  PODS 2010»
14 years 26 days ago
Semantic query optimization in the presence of types
Both semantic and type-based query optimization rely on the idea that queries often exhibit non-trivial rewritings if the state space of the database is restricted. Despite their ...
Michael Meier 0002, Michael Schmidt, Fang Wei, Geo...
EMSOFT
2007
Springer
13 years 11 months ago
Necessary and sufficient conditions for deterministic desynchronization
Synchronous reactive formalisms associate concurrent behaviors to precise schedules on global clock(s). This allows a non-ambiguous notion of "absent" signal, which can ...
Dumitru Potop-Butucaru, Robert de Simone, Yves Sor...
ATAL
2006
Springer
13 years 11 months ago
Tractable negotiation in tree-structured domains
Multiagent resource allocation is a timely and exciting area of research at the interface of Computer Science and Economics. One of the main challenges in this area is the high co...
Yann Chevaleyre, Ulle Endriss, Nicolas Maudet
AAAI
2006
13 years 9 months ago
SEMAPLAN: Combining Planning with Semantic Matching to Achieve Web Service Composition
Composing existing Web services to deliver new functionality is a difficult problem as it involves resolving semantic, syntactic and structural differences among the interfaces of...
Rama Akkiraju, Biplav Srivastava, Anca-Andreea Iva...
SOCIALCOM
2010
13 years 5 months ago
On the Navigability of Social Tagging Systems
It is a widely held belief among designers of social tagging systems that tag clouds represent a useful tool for navigation. This is evident in, for example, the increasing number ...
Denis Helic, Christoph Trattner, Markus Strohmaier...