摘要： 引入多维文档模型来组织论坛消息的描述性特征和语义性特征，并在多维索引的基础上，提出了加窗分析技术。目的在于分析论坛站点中语义漂移现象，进而发现论坛中的完整语义信息单元。

关键词: 论坛；多维文档模型；语义漂移

Abstract: This paper introduces multi-dimension document model to organize syntax and semantics characters of messages, and based on multi-dimension index, proposes the technology of adding-windows analysis. The purpose is to analyze the semantic drift phenomenon, and further find the integrated semantic units in Web forum sites.

Key words: Web forum; Multi-dimension document model; Semantic drift