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| An Ontology Concept-Based Cluster Partition Approach for Computing the Semantic Distance between Concepts |
| PENG Zhi-Ping1, LI Xiao-Ming2, KE Wen-De1 |
1.Department of Computer Science and Technology, Guangdong University of Petrochemical Technology, Maoming 525000
2.College of Computer and Software, Taiyuan University of Technology, Taiyuan 030000 |
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Abstract The semantic similarity computing between concepts is an important component in natural language processing etc., and the semantic similarity computing between concepts based on semantic distance is currently dominant technique. In this paper, the ontology based cluster partition approach for computing the semantic distance between concepts is proposed on the basis of the analysis of the lacks in the existing algorithms. The rules for computing the semantic distance between concepts are given under the situation of multi-concept clusters, and then the approach for computing the semantic distance between concepts within single cluster as well as cross-cluster is put forward. In the proposed approach, the non-symmetry of semantic similarities in the pairs of hyponymy concepts is worked out by introducing the forward semantic distance and the reverse semantic distance, and the other binary relationships of the pairs of non-hyponymy concepts are deal with by dynamically allocating the relation weights in the light of the locations of concept nodes. Experimented results shows that the proposed approach is effective and it is preferable to other typical similar ones.
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Received: 19 October 2009
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2011, Vol. 24 
