2015 | OriginalPaper | Buchkapitel
Knowledge Propagation in Contextualized Knowledge Repositories: An Experimental Evaluation
(Extended Paper)
verfasst von : Loris Bozzato, Luciano Serafini
Erschienen in: Knowledge Engineering and Knowledge Management
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As the interest in the representation of context dependent knowledge in the Semantic Web has been recognized, a number of logic based solutions have been proposed in this regard. In our recent works, in response to this need, we presented the description logic-based Contextualized Knowledge Repository (CKR) framework. CKR is not only a theoretical framework, but it has been effectively implemented over state-of-the-art tools for the management of Semantic Web data: inference inside and across contexts has been realized in the form of forward SPARQL-based rules over different RDF named graphs. In this paper we present the first evaluation results for such CKR implementation. In particular, in our first experiment we study its
scalability
with respect to different reasoning regimes. In a second experiment we analyze the effects of
knowledge propagation
on the reasoning process. In the last experiment we study the effects of
modularization
of global knowledge with respect to local reasoning.