对国外即兴研究的进展状况进行了总结.以6个外文数据库——EBSCO、SAGE Premier、John Wiley、Elsevier Science、Emerald和Taylor为文献检索源,对1991-2012年国外即兴研究文献进行检索.利用文献计量学方法对文献数量、发表期刊、主要作者和关键词进行统计分析,并利用文本挖掘方法、可视化软件Refviz以及信息熵方法对研究主题及其演化规律进行了分析.%This paper sums up the study on foreign improvisation during 1990-2012.Taking six foreign database as the literature retrieval source,it searches the research literature on improvisation published during 1990-2012.Then it uses the bibliometric approach to implement the statistical analysis on literature amount,published journal,core author and key word.And it analyzes research theme and its evolution by using text analysis method,visualization software Refviz and information entropy approach.
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