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    DLOG
    2011
    215views Automated Reasoning» more  DLOG 2011»
    Module Extraction via Query Inseparability in OWL 2 QL
    12 years 8 months ago
    Module Extraction via Query Inseparability in OWL 2 QL
    Download  sunsite.informatik.rwth-aachen.de
    We show that deciding conjunctive query inseparability for OWL 2 QL ontologies is PSpace-hard and in ExpTime. We give polynomial-time (incomplete) algorithms and demonstrate by exp...
    Boris Konev, Roman Kontchakov, Michel Ludwig, Thom...
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    DLOG
    2011
    304views Automated Reasoning» more  DLOG 2011»
    DL-Lite with Attributes and Sub-Roles (Extended Abstract)
    12 years 8 months ago
    DL-Lite with Attributes and Sub-Roles (Extended Abstract)
    Download  sunsite.informatik.rwth-aachen.de
    Alessandro Artale, Yazmin Angélica Ib&aacut...
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    DLOG
    2011
    260views Automated Reasoning» more  DLOG 2011»
    Query Answering over SROIQ Knowledge Bases with SPARQL
    12 years 8 months ago
    Query Answering over SROIQ Knowledge Bases with SPARQL
    Download  www.cs.ox.ac.uk
    W3C currently extends the SPARQL query language with so-called entailment regimes, which define how queries are evaluated using logical entailment relations. We describe a sound a...
    Ilianna Kollia, Birte Glimm, Ian Horrocks
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    DLOG
    2011
    244views Automated Reasoning» more  DLOG 2011»
    Local Closed World Semantics: Keep it simple, stupid!
    12 years 8 months ago
    Local Closed World Semantics: Keep it simple, stupid!
    Download  sunsite.informatik.rwth-aachen.de
    A combination of open and closed-world reasoning (usually called local closed world reasoning) is a desirable capability of knowledge representation formalisms for Semantic Web app...
    Adila Alfa Krisnadhi, Kunal Sengupta, Pascal Hitzl...
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    DLOG
    2011
    251views Automated Reasoning» more  DLOG 2011»
    Goal-oriented Query Rewriting for OWL 2 QL
    12 years 8 months ago
    Goal-oriented Query Rewriting for OWL 2 QL
    Download  sunsite.informatik.rwth-aachen.de
    We present an optimized query rewriting algorithm for OWL 2 QL that computes the rewriting set of a user query by avoiding unnecessary inferences and extended clause subsumption ch...
    Alexandros Chortaras, Despoina Trivela, Giorgos B....
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    DLOG
    2011
    237views Automated Reasoning» more  DLOG 2011»
    Extracting Finite Sets of Entailments from OWL Ontologies
    12 years 8 months ago
    Extracting Finite Sets of Entailments from OWL Ontologies
    Download  sunsite.informatik.rwth-aachen.de
    The canonical standard description logic reasoning service is classification, that is, the generation of the set of atomic subsumptions which are entailed by some ontology. While ...
    Samantha Bail, Bijan Parsia, Ulrike Sattler
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    DLOG
    2011
    235views Automated Reasoning» more  DLOG 2011»
    Bidirectional Reachability-Based Modules
    12 years 8 months ago
    Bidirectional Reachability-Based Modules
    Download  sunsite.informatik.rwth-aachen.de
    We introduce an algorithm for MinA extraction in EL based on bidirectional reachability. We obtain a significant reduction in the size of modules extracted at almost no additional...
    Riku Nortje, Arina Britz, Thomas Andreas Meyer
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    DLOG
    2011
    202views Automated Reasoning» more  DLOG 2011»
    Reasoning in Resource-Constrained Environments: a Matchmaking Engine over Relational Knowledge Bases
    12 years 8 months ago
    Reasoning in Resource-Constrained Environments: a Matchmaking Engine over Relational Knowledge Bases
    Download  sisinflab.poliba.it
    We present a framework for logic-based matchmaking on ALN ABoxes stored in a relational database. The proposed approach allows both non-standard reasoning and subsumption check be ...
    Eufemia Tinelli, Francesco M. Donini, Michele Ruta...
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    DLOG
    2011
    222views Automated Reasoning» more  DLOG 2011»
    The Complexity of Conjunctive Query Abduction in DL-Lite
    12 years 8 months ago
    The Complexity of Conjunctive Query Abduction in DL-Lite
    Download  sunsite.informatik.rwth-aachen.de
    In order to meet usability requirements, most logic-based applications provide explanation facilities for reasoning services. This holds also for DLs, where research focused on the...
    Diego Calvanese, Magdalena Ortiz, Mantas Simkus, G...
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    DLOG
    2011
    198views Automated Reasoning» more  DLOG 2011»
    Unchain My EL Reasoner
    12 years 8 months ago
    Unchain My EL Reasoner
    Download  sunsite.informatik.rwth-aachen.de
    We study a restriction of the classification procedure for EL++ where the inference rule for complex role inclusion axioms (RIAs) is applied in a “left-linear” way in analogy ...
    Yevgeny Kazakov, Markus Krötzsch, Frantisek S...
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