Research on the Semantic Similarity Algorithm Based on the Weighted Tree of Domain Ontology
Yanwei Zhao · Computer Engineering and Science · 2009
The semantic similarity algorithm is the key to ontology mapping.The past experiences tell us that single concept similarity algorithms are not in favor of improving the precision of retrieving the results.In the paper,according to MPO,we propose a new semantic similarity algorithm based on the weighted tree of the domain ontology.With the help of MPO,we can extract key concepts from the title of document,and then apply OWSTS to evaluating the association degree between documents and retrieving expressions.This approach has been well applied in the intelligent retrieving system,GB_MPO.The results of experiments show that the performance of the OWSTS algorithm is obviously better than that of TFIDF.