释义 |
bi·gram 英'bɪɡræm美'bɪɡræm BNC⁴⁵⁴⁶⁶ 基本英英例句 n.双字母组¹⁰⁰
Noun: a word that is written with two letters in an alphabetic writing system 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。 cnki 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; fabiao 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。 fabiao Thirdly, this paper proposes a new method to extract bigram as features based on illegal keywords. 再次,本文提出一种基于关键词抽取二元词串作为特征的方法。 fabiao This method preserves the strong power of bigram to distinguish class, while reduces the extent of data sparseness. 该方法保留了二元词串的较强类型分辨能力的特点,同时降低了特征的数据稀疏程度。 fabiao |