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采用自组织映射(SOM)方法对美国43所信息类科研机构在2001-2011年被EI数据库收录的论文及其分类号进行了可视化聚类分析,并归纳出各机构聚类的主要工程技术类研究领域。结果发现,将近一半的科研机构以计算机软件、数据处理及应用为研究重点,其次大约有四分之一的机构以信息科学为研究重点,大约有五分之一的机构以计算机外围设备为研究重点,少数机构以教育、管理为研究重点。
Using self-organization mapping (SOM) method, this paper conducts a visual cluster analysis on the papers and their classification numbers of 43 information science research institutes in the EI database from 2001 to 2011, and summarizes the major engineering techniques Research areas. As a result, nearly half of the research institutes focused on computer software, data processing and applications. About one-quarter of the institutions focused on information science. About one-fifth of the institutions focused their research on computer peripherals Focus, a few agencies to education, management as the research focus.