【摘要】 学科领域新兴研究趋势与突变密切相关。突变检测算法可以用于检测一个学科内研究兴趣的突然增长。基于CiteSpaceⅡ的突变检测功能,以我国数字图书馆研究文献为例,通过突变词时区视图、突变词共现网络视图及突变词权重排序,从突变词视角探测分析我国数字图书馆新兴研究趋势及其演化轨迹,并总结了突变监测方法在新兴研究趋势探测中的独特优势和存在的不足。更多还原

【Abstract】 The emerging trend of scientific area is quite related to burst.The burst detection algorithm can be used for the detection of the sudden increase of a scientific research interest.Based on the CiteSpaceII’s burst detection function,using the research literature in China’s digital libraries,integrating the time-zone cluster view,co-occurrence network cluster view,and weighted ranking in the burst terms,we explore and analyze the new trend and evolution trajectory of the digital libraries in China.Finally,we summarize the special advantages and existing defects of the burst detection approach of the emerging research trend exploration.更多还原