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Implementing and Evaluating a Rule-Based Approach to Querying Regular EL+ Ontologies

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3 Author(s)
Yuting Zhao ; Dept. of Comput. Sci., Univ. of Aberdeen, Aberdeen, UK ; Pan, J.Z. ; Yuan Ren

Recent years have witnessed the wide recognition of the importance of ontology and rule in the AI research. In this paper, we report our implementation and evaluation of a rule-based approach to querying regular EL+, a restriction of a well known description logics based ontology language EL+, by only allowing regular role axioms. It is known that, without such a restriction, query answering in EL+ in general is undividable. In our approach, a regular EL+ ontology is first translated into a logic program which contains a set of rules, and then by forward chaining reasoning the pseudo model of the above logic program is calculated. Query answering for EL+ is rewritten to instance checking in the pseudo model of a logic program. To the best of our knowledge, this is the first report of implementation and evaluation for regular EL+ ontologism.

Published in:

Hybrid Intelligent Systems, 2009. HIS '09. Ninth International Conference on  (Volume:3 )

Date of Conference:

12-14 Aug. 2009