Chain Resolution Summary Chain Resolution A Variant of the Resolution Calculus tailored tow.pdf

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Chain Resolution Summary Chain Resolution A Variant of the Resolution Calculus tailored tow.pdf

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Chain Resolution Summary Chain Resolution A Variant of the Resolution Calculus tailored tow

Introduction Chain Resolution Summary Chain Resolution A Variant of the Resolution Calculus tailored towards Semantic Web Applications Uwe Keller uwe.keller@deri.org Digital Enterprise Research Institute (DERI) Department of Computer Science University of Innsbruck, Austria DERI Research Seminar – October 20th, 2005 based on a paper by Tanel Tammet at IJCAR 2004 [?] Uwe Keller Tailoring Resolution towards SW Apps Introduction Chain Resolution Summary Outline 1 Introduction Semantic Web Applications The Resolution Calculus Semantic Web Apps + Resolution = ? 2 Chain Resolution The Principle Implementing Chain Resolution Further properties of Chain Resolution Uwe Keller Tailoring Resolution towards SW Apps Introduction Chain Resolution Summary Semantic Web Apps Basic Resolution Semantic Web Apps + Resolution = ? Outline 1 Introduction Semantic Web Applications The Resolution Calculus Semantic Web Apps + Resolution = ? 2 Chain Resolution The Principle Implementing Chain Resolution Further properties of Chain Resolution Uwe Keller Tailoring Resolution towards SW Apps Introduction Chain Resolution Summary Semantic Web Apps Basic Resolution Semantic Web Apps + Resolution = ? Knowledge-based Applications Use explicit and machine-processable representation of knowledge about some domain Explicit model of a domain allows for ?knowledgable” Apps ?intelligent” Agents Domain model can be considered as a (huge) knowledgebase that is formalized in some logic L(Σ) Uwe Keller Tailoring Resolution towards SW Apps Introduction Chain Resolution Summary Semantic Web Apps Basic Resolution Semantic Web Apps + Resolution = ? What are Semantic Web Apps? Semantic Web Apps are data-intensive knowledge-based Apps Knowledge Representation based on Ontologies Provide at least agreed-upon terminology (within some community) (Signature Σ) Connected (via annotation) with a huge set of instances (Semantic) Relations between terminology: concept role hierarchies etc. (Schem