A comparison of corpusbased and structural methods on approximation of semantic relatedness in ontologies
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In this paper, the authors compare the performance of corpus-based and structural approaches to determine semantic relatedness in ontologies. A large light-weight ontology and a news corpus are used as materials. The results show that structural measures proposed by Wu and Palmer, and Leacock and Chodorow have superior performance when cut-off values are used. The corpus-based method Latent Semantic Analysis is found more accurate on specific rank levels. In further investigation, the approximation of structural measures and Latent Semantic Analysis show a low level of overlap and the methods are found to approximate different types of relations. The results suggest that a combination of corpus-based methods and structural methods should be used and appropriate cut-off values should be selected according to the intended use case.
|Number of pages||18|
|Journal||INTERNATIONAL JOURNAL ON SEMANTIC WEB AND INFORMATION SYSTEMS|
|Publication status||Published - Oct 2009|
|MoE publication type||A1 Journal article-refereed|
- Latent Semantic Analysis, Ontologies, Semantic Relatedness, Semantic Web, Structural Measures