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PODS
1997
ACM
149views Database» more  PODS 1997»
13 years 12 months ago
Answering Recursive Queries Using Views
We consider the problem of answering datalog queries using materialized views. The ability to answer queries using views is crucial in the context of information integration. Prev...
Oliver M. Duschka, Michael R. Genesereth
EPIA
2005
Springer
14 years 1 months ago
Revised Stable Models - A Semantics for Logic Programs
This paper introduces an original 2-valued semantics for Normal Logic Programs (NLP), which conservatively extends the Stable Model semantics (SM) to all normal programs. The dist...
Luís Moniz Pereira, Alexandre Miguel Pinto
TPLP
2002
117views more  TPLP 2002»
13 years 7 months ago
On Properties of Update Sequences Based on Causal Rejection
In this paper, we consider an approach to update nonmonotonic knowledge bases represented as extended logic programs under the answer set semantics. In this approach, new informat...
Thomas Eiter, Michael Fink, Giuliana Sabbatini, Ha...
AAAI
2004
13 years 9 months ago
Adding Time and Intervals to Procedural and Hierarchical Control Specifications
In this paper we introduce the language Golog+HTNT I for specifying control using procedural and HTN-based constructs together with deadlines and time restrictions. Our language s...
Tran Cao Son, Chitta Baral, Le-Chi Tuan
EUROPAR
2004
Springer
14 years 1 months ago
Concurrent Table Accesses in Parallel Tabled Logic Programs
Tabling is an implementation technique that improves the declarativeness and expressiveness of Prolog by reusing answers to subgoals. The declarative nature of tabled logic program...
Ricardo Rocha, Fernando M. A. Silva, Vítor ...