Firstly, using word frequency analysis, based on the titles, keywords and abstracts of journals, the degree of its similarity and distinction were analyzed.
首先,利用词频分析法分别从标题用词、关键词、摘要用词等方面对力学期刊之间在内容上的相似度与区分度作了分析。
参考来源 - 力学期刊群的内外关系与学科结构Their search methods are both based on the technology of word frequency analysis. The returning information is a lot, but much it is so irrespective that users have to filter it again.
它们的检索方式都是基于词频分析技术,虽然返回信息很多,却有过多无关信息,用户必须从结果中进行筛选。
参考来源 - 基于短语识别的自然语言理解搜索方法研究·2,447,543篇论文数据,部分数据来源于NoteExpress
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