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基于我国经济与技术发展的需求,文章阐述了专利预警应用的背景和专利文献相似度研究的意义。在系统地调查与计量国内外相关文献研究的基础上,总结专利预警研究的主要侧重点,归纳文献相似度计算的研究现状,并比较分析文献相似度的主要计算方法及优缺点。最后,分别论述国内外面向预警的专利文献相似度计算研究的主要方法、观点与内容侧重点。
Based on the needs of economic and technological development in our country, the article expounds the background of the application of patent early warning and the significance of researches on the similarity of patent documents. Based on systematic investigation and measurement of relevant literatures at home and abroad, this paper summarizes the main focuses of patent early warning research, summarizes the research status of literature similarity calculation, and compares and analyzes the main calculation methods, advantages and disadvantages of literature similarity. Finally, the paper discusses the main methods, opinions and contents of the researches on the similarity calculation of early warning patent literature both at home and abroad.