Knowledge Mapping Analysis On The Application Process Of Linked Data In Digital Library

With the development of the information age,domestic libraries are changing with each passing day.Linked data,one of the important technologies for library data distribution and information service,is getting more and more attention.Over the years,domestic and foreign scholars have done a lot of theoretical and practical research on the use of connected data in digital libraries and have achieved rich results.Many current researchers have adopted a qualitative method of reviewing the analysis of research hotspots.To a large extent depends on the author's subjective judgment and the author's knowledge structure,which will affect the objectivity and accuracy of the research results.The mapping knowledge domains,through the quantitative analysis of the data,and then intuitively reveals the history,frontier and overall situation of the research field in the form of maps,can display its core structure and current dynamics,and provide practical and valuable reference for researchers.This article uses the related research papers of digital library in the related data of CNKI,Wan Fang,and Wei Pu from 2002 to 2017 as samples,using word frequency analysis,co-occurrence analysis,clustering co-word analysis,and burst detection.The scientific measurement methods for comprehensive literature measurement and knowledge map analysis of domestic linked data research fully explain the author's cooperation network,organization cooperation network,keyword common word network,clustering common words in the application field of linked data in digital libraries.The network,the subjective time zone view of mutation words,and the knowledge map of mutations and co-word clusters show intuitively the cooperation networks,core institutions,research focus,research frontiers,and emerging trends of domestic linked data research since the 21 st century.The study found that:(1)The modern open and interconnected environment has brought new opportunities and challenges to the development of digital libraries and linked data,and traditional libraries will have much space for development in the new environment;(2)Research cooperation in the same field and across fields hasstrengthened,but the cooperation network is relatively sparse.The cooperation between different agencies and regions is still not obvious enough.The applied research is mostly limited to the “kinship” relationship and cooperation with other authors of different units.Relatively weak;(3)The core research forces are concentrated in college management departments and first-rate institutes.Management colleges and universities in the colleges and universities are mainly in management colleges and information management departments.The advantages of research on linked data of Nanjing University,Shanghai Library,Central China Normal University,Wuhan University,and Jilin University are outstanding;the first-rate research institutes include China Institute of Science and Technology Information.The National Science Library of the Chinese Academy of Sciences and the National Science Library of the Chinese Academy of Sciences;(4)Outstanding data on the research of linked data emerged from the Outstanding Representatives of Ou Shiyan,Liu Wei,Xia Cuijuan,Zhang Chunjing,Wang Zhongyi,Xia Lixin,Qiu Junping,Wang Ping,You Yi,Gao Jinsong,etc.Characters;(5)Through in-depth analysis and research on the co-occurrence knowledge map,we have obtained four different application forms of the current domestic linked data applied to digital library research and five different directions of foreign research.In addition,two major hot topics in the field have been discovered through clustering keywords;(6)The use of mutation detection combined with co-word analysis method found that there are 4 kinds of mutation word types in the domestic associated data research literature,and come to the two emerging topics of the associated data research,and four major research hotspots from birth to publication,interconnection and application are obtained themes.Indicate the direction for further in-depth research of linked data in digital library.