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机构地区:[1]中国医科大学信息管理与信息系统(医学)系,辽宁沈阳110001 [2]中国医科大学,七年制94期2班辽宁沈阳110001
出 处:《中华医学图书情报杂志》2010年第6期1-3,共3页Chinese Journal of Medical Library and Information Science
基 金:辽宁省教育厅高等学校科研项目"辽宁省高校医学类重点学科发展方向的战略情报分析"(20060935)
摘 要:要发现某一学科领域的新趋势,必须及早关注其热点或核心文献。通常人们只关注成熟期或以后的研究热点,而忽视早期出现的新知识。目前,检测新趋势和重要文献的方法有专家法和基于计算机的方法。专家法耗时、复杂、不能复制、具有主观性,难以掌握文献发展的全部规律。基于计算机的方法包括文本挖掘和引文分析法,适用于巨大信息量的处理,是对专家法的重要补充。故对文本挖掘法、引文分析法及知识领域的可视化等用于发现核心文献新趋势的方法进行探讨。The hotspot and core literature of a certain subject must be concerned if its new trend is to be discovered. However, scientists usually only pay attention to the research hotspots during after its mature period and neglect the new knowledge at its early period. The methods available to discover new trend and important literature in a certain subject include expert-based and computer-based methods. Expert-based methods are time-consuming, complicated, non-reproducible, subjective, and cannot discover the whole evolution process of literature. Computerbased methods, including text mining and citation analysis, are suitable for the processing of magnitude informa- tion, and can thus be used as an important supplement of expert-based methods. Text mining, citation analysis and visualization used in discovering the new trend if core literature were discussed in this paper.
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