【摘要】 跨语言文档聚类主要是将跨语言文档按照内容或者话题组织为不同的类簇。该文通过采用跨语言词相似度计算将单语广义向量空间模型(Generalized Vector Space Model,GVSM)拓展到跨语言文档表示中,即跨语言广义空间向量模型(Cross-Lingual Generalized Vector Space Model,CLGVSM),并且比较了不同相似度在文档聚类下的性能。同时提出了适用于GVSM的特征选择算法。实验证明,采用SOCPMI词汇相似度度量算法构造GVSM时,跨语言文档聚类的性能优于LSA。更多还原

【Abstract】 Cross-Lingual Document Clustering is the task to automatically organize a large collection of cross-lingual documents into groups according to their contents or topics.This work extends traditional monolingual Generalized Vector Space Model(GVSM) to Cross-Lingual GVSM(CLGVSM) by using cross-lingual term similarity calculation methods in order to represent documents in different languages and compare different term similarity calculation methods in cross-lingual document clustering.This work also proposes new feature selection method for CLGVSM.Experiment results show that GVSM with Second Order Co-occurrence Point wise Mutual Information(SOCPMI) term similarity measure outperforms the latent semantic analysis(LSA) method.更多还原