Query Expansion Research Based on Semantic Similarity
Yuan Dao-min · Journal of Hangzhou Dianzi University · 2008
In this paper,factors that affect ontological semantic similarity are analyzed and quantified,and a distance-based semantic similarity calculation model for concepts is proposed.On this basis,the scope of expanded concept set is adjusted by the similarity threshold,and the query expansion based on semantic concepts is realized.Finally,the scheme is proved reasonable and valid by concrete tests and analysis.