Sciweavers

DLOG
2010
13 years 3 months ago
Query Algebra and Query Optimization for Concept Assertion Retrieval
We develop a query algebra that supports efficient assertion retrieval--a natural extension of instance retrieval. The algebra is based on previously developed techniques for index...
Jeffrey Pound, David Toman, Grant E. Weddell, Jiew...
DLOG
2010
13 years 3 months ago
Towards Soundness Preserving Approximation for ABox Reasoning of OWL2
ABox Reasoning in large scale description logic (DL) knowledge bases, e.g. ontologies, is important for the success of many semantic-enriched systems. Performance of existing appro...
Yuan Ren, Jeff Z. Pan, Yuting Zhao
DLOG
2010
13 years 3 months ago
Updating TBoxes in DL-Lite
Abstract. We study the problem of updates for TBoxes represented in Description Logics of the DL-Lite family. DL-Lite is at the basis of OWL 2 QL, one of the tractable fragments of...
Dmitriy Zheleznyakov, Diego Calvanese, Evgeny Khar...
DLOG
2010
13 years 3 months ago
Second-Order Description Logics: Semantics, Motivation, and a Calculus
Simona Colucci, Tommaso Di Noia, Eugenio Di Sciasc...
DLOG
2010
13 years 3 months ago
Justification Masking in OWL
Abstract. This paper presents a discussion on the phenomena of masking in the context of justifications for entailments. Various types of masking are introduced and a definition fo...
Matthew Horridge, Bijan Parsia, Ulrike Sattler
DLOG
2010
13 years 3 months ago
Logic for Modeling Product Structure
A fragment of type theory with OWL class constructions for types and binary properties is used to formalize SysML Structural Block Diagram models. A structural SysML block diagram ...
Henson Graves
DLOG
2010
13 years 3 months ago
Guiding Reification in OWL through Aggregation
We put forward a methodological approach aimed at guiding ontology modellers in choosing which relations to reify. Our proposal is based on the notion of aggregation as used in con...
Paula Severi, José Luiz Fiadeiro, David Eks...
DLOG
2010
13 years 3 months ago
Optimal Rewritings in Definitorially Complete Description Logics
In this paper, we revisit the problem of definitorial completeness, i.e., whether a given general TBox T in a description logic (DL) L can be rewritten to an acyclic TBox T in L . ...
Inanç Seylan, Enrico Franconi, Jos de Bruij...
DLOG
2010
13 years 3 months ago
Generating Referring Expressions with OWL2
The task of generating referring expressions, an important subtask of Natural Language Generation is to generate phrases that uniquely identify domain entities. Until recently, man...
Yuan Ren, Kees van Deemter, Jeff Z. Pan