کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
396007 666101 2008 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Graph-based query rewriting for knowledge sharing between peer ontologies
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر هوش مصنوعی
پیش نمایش صفحه اول مقاله
Graph-based query rewriting for knowledge sharing between peer ontologies
چکیده انگلیسی

Peer knowledge management systems (PKMS) offer a flexible architecture for decentralized knowledge sharing. In PKMSs, the knowledge sharing and evolution processes are based on peer ontologies. Finding an effective and efficient query rewriting algorithm for regular expression queries is vital for knowledge sharing between peers in PKMSs; and for this our solution is characterized by graph-based query rewriting. Based on the graphs for both axioms and mappings, we design a novel algorithm, regular expression rewriting algorithm, to rewrite regular expression queries along semantic paths. The simulation results show that the performance of our algorithm is better than Mork’s reformulation algorithms [P. Mork, Peer architectures for knowledge sharing, PhD thesis, University of Washington, 2005. ], and our algorithm is more effective than the naive rewriting algorithm.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Information Sciences - Volume 178, Issue 18, 15 September 2008, Pages 3525–3542
نویسندگان
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