The invention provides a novel method for solving the lexical semantic similarity between ontology concepts. The method comprises the steps of calculating the similarity between the ontology concepts, with the maximum depths, of to-be-compared words input into a statistical method module; calculating the word form similarity between the two to-be-compared words, calculating the influence of the most recent common ancestor depth of the two to-be-compared words on the similarity between the two to-be-compared words and constructing an impact factor function; and finally calculating the similarity between the two to-be-compared words. The novel method is closer to an empirical value of an expert in quantitative concept; the factors of the distance between the ontology concepts, with corresponding maximum depths, of the to-be-compared words, the depths, the density and the like are more fully and comprehensively considered, so that the accuracy of the semantic similarity result is greatly improved; the ontology reasoning effect is better improved; better improvement of the accuracy of the word form similarity result and the semantic similarity result between the words is considered; data processing of various influence factors is more standard; and the novel method accords with the practical application effect.
Novel method for solving lexical semantic similarity between ontology concepts