Abstract
Fuzzy ontologies are efficient tools to handle fuzzy and uncertain knowledge on the semantic web; but there are heterogeneity problems when gaining interoperability among different fuzzy ontologies. This paper uses concept approximation between fuzzy ontologies based on instances to solve the heterogeneity problems. It firstly proposes an instance selection technology based on instance clustering and weighting to unify the fuzzy interpretation of different ontologies and reduce the number of instances to increase the efficiency. Then the paper resolves the problem of computing the approximations of concepts into the problem of computing the least upper approximations of atom concepts. It optimizes the search strategies by extending atom concept sets and defining the least upper bounds of concepts to reduce the searching space of the problem. An efficient algorithm for searching the least upper bounds of concept is given.
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Foundation item: Supported by the National Natural Science Foundation of China (60373066, 60425206, 90412003), National Grand Fundamental Research 973 Program of China (2002CB312000), National Research Foundation for the Doctoral Program of Higher Education of China (20020286004)
Biography: LI Yan-hui (1981-), male, Master candidate, research direction: Semantic Web, knowledge representation on the Web.
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Yan-hui, L., Bao-wen, X., Jian-jiang, L. et al. Concept approximation between fuzzy ontologies. Wuhan Univ. J. Nat. Sci. 11, 73–77 (2006). https://doi.org/10.1007/BF02831707
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DOI: https://doi.org/10.1007/BF02831707