英语语法分析

In those texts, we select bigram as feature after Chinese word segmentation, deleting stop word and other process.

在筛选出的文本中，经过分词、去除停用词等处理后，选取二元词串作为特征；

Found a large number of high-degree overlapped bigrams and high-degree biased bigrams existing in bigram feature set.

发现特征集中存在大量高度重叠特征和高度偏差特征。

Secondly, this paper presents a hierarchical text filtering approach based on bigram in the off-line filtering module.

其次，针对离线过滤，本文提出了一种基于二元模型的分层文本过滤方法。