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基于HowNet词汇相关性的文本聚类 被引量:4
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作者 周爱武 汪贤惠 刘慧婷 《微电子学与计算机》 CSCD 北大核心 2015年第4期90-93,共4页
提出基于HowNet词汇相关性的聚类方法,该方法通过统计学的Z分数来消除孤立点,根据文档的稀疏分布程度,选择初始聚类中心,并且考虑词与词的相关性和词与词的语义相似性,使得文本聚类的精确度得到了提升,时间消耗上也大大减少.
关键词 知网 词汇相关性 Z分数 义原 孤立点 聚类
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The Development of Lexical Semantic Autonomy of English Majors
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作者 崔艳嫣 《Chinese Journal of Applied Linguistics》 2014年第2期231-243,265,共14页
This study investigates the development of lexical semantic autonomy by a semantic relatedness test on the part of 200 English majors from Year one through Year four in a university in Shandong Province. Despite the o... This study investigates the development of lexical semantic autonomy by a semantic relatedness test on the part of 200 English majors from Year one through Year four in a university in Shandong Province. Despite the obvious development of their receptive vocabulary size, the subjects at the four learning stages have not achieved the lexical semantic autonomy, confirming the view that L1 semantic involvement in L2 word processing is a long and constant state of L2 lexical development. Explicit vocabulary teaching complemented by data-driven learning can be adopted to trigger the semantic restructuring, overcome semantic fossilization, and promote the development of lexical semantic autonomy in L2 vocabulary acquisition. 展开更多
关键词 lexical competence Lexical semantic autonomy semantic-relatedness
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