It uses WordNet to analyse the meaning of words: hypernym, hyponym, antonym and synonym, draw topic sentence vectors to obtain the precise expression of the meaning of documents, then integrate them into text vector to ensure the relativity of the denotation of feature. 使用WordNet分析语义,提取主题句向量组用以确保文档含义的准确表达,再综合成文本向量保证特征表示的相关性。