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DLOG
2008
14 years 1 months ago
Two Upper Bounds for Conjunctive Query Answering in SHIQ
We have shown recently that, in extensions of ALC that involve inverse roles, conjunctive query answering is harder than satisfiability: it is 2-ExpTime-complete in general and NEx...
Carsten Lutz
DLOG
2008
14 years 1 months ago
Fuzzy Description Logics for Bilateral Matchmaking in e-Marketplaces
We present a novel Fuzzy Description Logic (DL) based approach to automate matchmaking in e-marketplaces. We model traders' preferences with the aid of Fuzzy DLs and, given a ...
Azzurra Ragone, Umberto Straccia, Fernando Bobillo...
DLOG
2008
14 years 1 months ago
A Kernel Revision Operator for Terminologies
Abstract. In this paper, we propose a new method for revising terminologies in description logic-based ontologies. Our revision method is a reformulation of the kernel revision ope...
Guilin Qi, Peter Haase, Zhisheng Huang, Jeff Z. Pa...
DLOG
2008
14 years 1 months ago
Conjunctive Query Answering in SH using Knots
Answering conjunctive queries (CQs) has been recognized as a key task for the usage of Description Logics (DLs) in a number of applications. The problem has been studied by many au...
Magdalena Ortiz, Mantas Simkus, Thomas Eiter
DLOG
2008
14 years 1 months ago
Subsumption Propagation between Remote Ontologies in Distributed Description Logic
Distributed Description Logics (DDL) is a KR formalism that enables reasoning with multiple ontologies interconnected by directional semantic mapping. Subsumption propagation in DD...
Martin Homola
DLOG
2008
14 years 1 months ago
Unifying Industry-grade Class-based Conceptual Data Modeling Languages with CMcom
Abstract. From the side of modelers and early-adopter industry, interest in reasoning over conceptual models and other online usage of conceptual models is growing. To obtain a mor...
C. Maria Keet
DLOG
2008
14 years 1 months ago
The SAT-Tableau Calculus
Uwe Keller, Stijn Heymans