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一种基于种子扩散策略的关键词抽取方法

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摘要 关键词在文本分类,文献检索,文本自动抽取方面有着重要的作用。种子扩散策略是以关键字为基础,向左右两端扩散汉字而形成词组的过程。本文通过种子扩散策略对新生成的词组计算其权重值,并对权重值进行排序,从而抽取文本集的关键词。实验表明,该方法省去了其它关键词抽取方法的文本分词步骤,从而节省大量时间和空间,而准确率和召回率并不低于其它方法。
作者 李强
出处 《科技风》 2016年第1期62-62,64,共2页
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