基于词频g 指数的共词聚类关键词选取研究——以教育技术学硕士学位论文为例

Selection Research of Keywords in Co-word Clustered Based on the G-index of Word Frequency ——Taking Educational Technology Master Thesis as an Example

利用CNKI中国优秀硕士学位论文全文数据库，以教育技术学专业为例，利用其中3465篇教育技术学硕士学位论文的6593个关键词为研究对象，对词频g指数和齐普夫第二定律选取的高频词进行共词聚类比较，基于词频g指数选取的关键词得到了良好的聚类结果，为以后共词聚类的关键词选取研究提供了理论依据。

Taking the Educational Technology as an example，the author uses 6593 key-words in 3465 dissertations from CNKI China excellent master thesis full-text database and makes a co-word clustered comparison in High-frequency words which chosen by the g-index of word frequency and Zipf’s Law. The g-index of word frequency come to a good clustered result and provides an important theoretical basis for future research on the selection of key-words.