Titlebook: Web Reasoning and Rule Systems; 6th International Co Markus Kr?tzsch,Umberto Straccia Conference proceedings 2012 Springer-Verlag Berlin He

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Semantic Matchmaking and Ranking: Beyond Deduction in Retrieval Scenarioshe process of computing such ordered list also taking into account the semantics of resources description and of the query, provided with reference to a logic theory (an ontology, a set of rules, etc.) [3]. A matchmaking step is fundamental in a number of retrieval scenarios spanning from (Web) serv

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A Tableau Algorithm for Fuzzy Description Logics over Residuated De Morgan Latticesin the description logic . with semantics based on a complete residuated De Morgan lattice. The problems are undecidable in the general case, but can be decided by a tableau algorithm when restricted to finite lattices. For some sublogics of ., we provide upper complexity bounds that match the compl

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A Tableau Algorithm for Fuzzy Description Logics over Residuated De Morgan Latticesin the description logic . with semantics based on a complete residuated De Morgan lattice. The problems are undecidable in the general case, but can be decided by a tableau algorithm when restricted to finite lattices. For some sublogics of ., we provide upper complexity bounds that match the compl

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Ontology-Based Governance of Data-Aware Processesntologies. In particular, we consider processes executed over a relational database which issue calls to external services to acquire new information and update the data.We equip these processes with an OBDA system, in which an ontology modeling the domain of interest is connected through declarativ

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Semantic Independence in DL-Programsinterest. When computing answer sets of a DL-program, special DL-atoms, which provide query interface to an ontology, are evaluated under a possibly changing input that gives a context for the evaluation. Many different such contexts may exist and evaluating a DL-atom may be costly even for one cont