Selecting publication keywords for domain analysis in bibliometrics: A comparison of three methods
作者：
Highlights：
• Selecting keywords as analysis object is important but lesser-noticed in bibliometrics.
• Keywords should be investigated based on their status both inside and outside the domain.
• The Keyword Activity Index is utilized to identify topical emphasis of a domain.
• The keywords selected by TF, TF-IDF, and TF-KAI are evaluated both qualitatively and quantitatively.
• TF-KAI performs better in selecting publication keywords for domain analysis.
摘要
•Selecting keywords as analysis object is important but lesser-noticed in bibliometrics.•Keywords should be investigated based on their status both inside and outside the domain.•The Keyword Activity Index is utilized to identify topical emphasis of a domain.•The keywords selected by TF, TF-IDF, and TF-KAI are evaluated both qualitatively and quantitatively.•TF-KAI performs better in selecting publication keywords for domain analysis.
论文关键词：Domain analysis,Keyword analysis,Keyword Activity Index,Digital Library in China
论文评审过程：Received 29 October 2014, Revised 10 January 2016, Accepted 10 January 2016, Available online 30 January 2016, Version of Record 30 January 2016.
论文官网地址：https://doi.org/10.1016/j.joi.2016.01.006
