谢谢老师,我之前有翻看过,我还是不太明白。陈老师论文中提到Burst detection determines whether a given frequency function has statistically significant fluctuations during a short time interval within the overall time period. 博客中说CiteSpace中Burst detection用于引用次数的Burst即按2次Citation Burst的按键。这是否说明Citation Burst即被引机构的次数,而Burst指机构在短时间内发文频数的显著波动情况?
李老师,您好!我现在在使用CiteSpace做文献统计,有一个问题想向您请教一下。我从Web of Science中下载数据,发现文本文档中包含有elsvier这样的版权信息,不知道这会不会对最后的结果有影响?比如,对中介中心性的计算结果会不会产生影响?请问CiteSpace有没有过滤版权信息的功能呢?谢谢李老师!
李老师您好,我按照您的方法,在知网上下载了数据,当应用数据作图时却弹出了一个窗口。内容如下:
citespace found no valid items to display.
1.Make sure that your data files indeed include relevant information,such as references(CR) or usage data (U1 and U2). For example,PubMed records do not provide cited references.
2.Try again with lower thresholds.
3.Make sure the time frame is valid.
Reset the range if needed.Then try again.