中文摘要：

文档标引图是一种基于短语的图结构文本特征表示模型,能更加全面、准确地表达文本特征信息,实现渐增的文本聚类和信息处理。该文基于文档标引图特征模型,提出文档相似度计算加法策略和乘法策略,采用变换函数对文档相似度值进行调整,增强文档之间的可区分性,改进文本聚类和分类等处理的性能,实例证明了策略的有效性。

英文摘要：

Document Index Graph（DIG） is a kind of phrase-based graph structure text feature representation model, which is able to express text feature information more completely and exactly to realize incremental text clustering and information processing. Based on DIG, document similarity additive and multiplicative strategy are proposed, document similarity is adjusted by a set of transform function, distinguishability between documents is strengthened, and performance of text clustering and classification are improved. Experiments demonstrate the efficiency of the methods.