領域內研究熱點在不斷變化,是研究人員關心的重點之一。文章通過對圖書情報領域文獻中關鍵詞的計量,利用不同時間段的詞頻變化情況對關鍵詞進行了分類。同時構建了快速增長與衰退熱點關鍵詞篩選方法,并利用可視化共詞網絡輔助進行了分析,探索了領域研究內容的變化情況及特點,為領域研究人員把握和確定研究方向提供參考。

The hotspots in a specific research field are constantly changing,which is one of the concerns of researchers.This paper measures the keywords in the documents of library and information science field,and classifies the keywords by using the word frequency changes in different time periods.At the same time,a selection method of hotspots keywords with rapid growth and decline is constructed,and the visual co-word network is used to analyze the changes and characteristics of the field research content.The paper provides references for the field researchers to grasp and determine the direction of research.