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

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Deriving Predicate Statistics for Logic Ruless as well. To this end, one first needs to collect data statistics for base and propagate them to derived predicates. However, there are two difficulties: dependencies among arguments and recursion. Earlier we developed an algorithm, called SDP, for estimating Datalog query sizes efficiently by esti

TSH582

Consistent Answers in Probabilistic Datalog+/– Ontologies in the context of query answering and information extraction for the Semantic Web. It is widely accepted that it is necessary to develop a principled way to handle uncertainty in this domain. In addition to uncertainty as an inherent aspect of the Web, one must also deal with forms of uncertainty d

GRIPE

Consistent Answers in Probabilistic Datalog+/– Ontologies in the context of query answering and information extraction for the Semantic Web. It is widely accepted that it is necessary to develop a principled way to handle uncertainty in this domain. In addition to uncertainty as an inherent aspect of the Web, one must also deal with forms of uncertainty d

浮雕

Query Rewriting under Ontology Contractionanswering is query rewriting where a wide variety of systems has been proposed the last years. All of them accept as input a fixed CQ . and ontology . and produce a rewriting for .. However, in many real world applications ontologies are very often dynamic—that is, new axioms can be added or existin

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Improving the Recall of Live Linked Data Querying through Reasoningbenefit of up-to-date results and decentralised execution, but operate only on explicit data from dereferenced documents, affecting recall. In this paper, we show how inferable knowledge—specifically that found through . and RDFS reasoning—can improve recall in this setting. We first analyse a corpu

过于平凡

Improving the Recall of Live Linked Data Querying through Reasoningbenefit of up-to-date results and decentralised execution, but operate only on explicit data from dereferenced documents, affecting recall. In this paper, we show how inferable knowledge—specifically that found through . and RDFS reasoning—can improve recall in this setting. We first analyse a corpu

思乡病

Distributed Ontology Based Data Access via Logic Programmingganizations and autonomous contributors are generating the so called “Web of Data”, making publicly available Semantic Web repositories built either from scratch or by translation of existing data in ontological form. Contemporarily, database technology providers – such as Oracle, Ontotext, and Onto

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Argumentation and Voting for an Intelligent User Empowering Business Directory on the Webl information. Our method combines different factors, such as social support drawn from votes and attacking/supporting relations between opinions interpreted as abstract arguments. We show a prototype web application which puts into use this method to offer an intelligent business directory allowing