With the further development of digital technology，As an innovative form of news information dissemination，Bet365 app download based on data mining and visual presentation is favored by major media，Especially after 2012，Domestic Bet365 app download practice is increasingly promoted，Aroused continued attention from the journalism and communication academic circles。This article uses the knowledge graph analysis software Citespace as the analysis tool，Taking Bet365 app download as the theme，Advanced search using CSSCI as the source category，Select 290 documents on Bet365 app download (2012-2019) from the CNKI database and draw a knowledge graph，In order to have a clear understanding of the trajectory and trends of Bet365 app download research in my country。

　　Current status of domestic Bet365 app download research

Research on Bet365 app download changes from “hot” to “cold”。The number of publications is an intuitive data that reflects the development trend of a research field。There were few research results on Bet365 app download before 2012。In 2013, most of the articles introduced the practice of Bet365 app download in the global journalism world，Some scholars introduced it to China as a new news dissemination method in the context of the big data era。2014-2015，Relevant papers are constantly increasing，Excellent cases continue to emerge，Academic circles focus their research on the introduction and analysis of domestic Bet365 app download practices。On the basis of sorting out outstanding foreign works，Start to explore the localization development of Bet365 app download。2016-2017，The number of papers related to Bet365 app download is gradually decreasing，Research topics gradually focus on production processes and journalism education。2018-2019，The growth rate of data news papers is slowing down，Scholars have begun to conduct more detailed research on Bet365 app download，For example, some scholars pay attention to the narrative paradigm of Bet365 app download、The impact of algorithms on Bet365 app download, etc.。

Network analysis of authors and their collaborations。Based on the statistics of the number of authors’ publications and cooperation in publishing，The number of authors who published 3 or more papers is only 20，The proportion of authors publishing one paper is higher。can be seen，Bet365 app download as a research field，Weak core author group，Highly productive authors have fewer numbers and lack stability，Most researchers only regard Bet365 app download as a sub-research field，Lack of sustained research。From the author’s academic experience，Most scholars who focus on Bet365 app download have long been committed to the research of new media，More sensitive to emerging news communication practices。But，They will soon be attracted by other newer news forms，There are fewer scholars who really stay in the field of Bet365 app download and continue to produce research results。Discover the author collaboration network through cluster analysis using Citespace，Researchers still mainly "work alone"，Cooperation is highly contingency，Most scholars publish papers in collaboration with their own graduate students，This is closely related to the fact that most scholars only regard Bet365 app download as a temporary research interest。

Research topic and keyword analysis。To some extent, keywords with higher frequency can reflect the focus of scholars in this research field。Results of keyword co-occurrence cluster analysis using Citespace，The keywords with higher frequency mainly include "big data", "visualization", "news", "media convergence", "infographics", "Guardian", etc.。In keywords with word frequency ≥ 6，“Big data” bears the brunt，The second is "Visualization"。The reason is that domestic scholars are doing preliminary research，Mainly introduces classic cases of foreign media and concepts of Bet365 app download, etc.，Leading the research content to be too concentrated，Not spread to the entire journalism discipline，The research horizon is relatively narrow。Compare to，Foreign scholars take “journalism” as the core of their research，Exploring the historical origins of Bet365 app download from the perspective of journalism、Accurate News、Computer-assisted reporting，And related journalistic objectivity，Exploring the impact of Bet365 app download on traditional news values ​​and reporting concepts。

　　Bet365 app download characteristics and existing problems

Found through knowledge graph analysis of data news CSSCI literature，Domestic research on Bet365 app download has the following characteristics and areas for improvement。

　　First，The topic selection shows a trend of horizontal expansion，Thematic Bet365 app download needs to be strengthened。There are roughly four categories of domestic research directions on Bet365 app download: Introduction to foreign Bet365 app download practical experience、Introduction to practical experience in data news localization、The impact of Bet365 app download on the original news production process、Bet365 app download talent training and journalism education。There are also a small number of articles dealing with ethical and regulatory issues arising from the collection and use of data，Such as infringement of personal privacy rights and violation of the principle of objectivity, etc.。In comparison，Foreign scholars tend to conduct in-depth exploration of several topics in Bet365 app download，The research objects are focused on areas closely related to the development status and trends of Bet365 app download，For example, some scholars have discussed the social impact of Bet365 app download from a value perspective，This type of issue involves the legality of data acquisition and use、Changes in journalism concepts, etc.。Also，Some scholars also pay attention to open government and community security in Bet365 app download、Data use and journalistic ethics、Topics such as data access rights and privacy protection，Revealing the role of Bet365 app download in promoting social development、The importance of improving government and citizen responsibility。

　　Second, the basic concepts of Bet365 app download need to be improved and standardized urgently.Although foreign scholars have different basic concepts of Bet365 app download，But most of them revolve around the historical origins of Bet365 app download、Explained by functional characteristics，Reflecting the historical continuity of the journalism and communication discipline。In exact formulation，Foreign countries prefer to use “Data”，instead of "Digital" and "Number"，Make a clear distinction between "data", "numbers" and "values"，At the same time, it also emphasizes the "driving force" of "data" in news production。The entry of Bet365 app download into China’s news communication sector coincides with the rise of big data technology in all walks of life，The industry and academia have inconsistent understandings of the concept of “Bet365 app download”，“Data” sometimes refers to “big data”，Sometimes referred to as "small data"。The most intuitive thing is that some columns are under the banner of "data news"，In fact, only a few values ​​of small size are used。Visible，my country’s news and communication circles have not standardized the concept of Bet365 app download。As the research deepens，Some scholars realize that Bet365 app download urgently needs to establish professional standards，Eliminate the vague cognition of basic concepts in Bet365 app download，The concept of Bet365 app download should be in line with the background of the times、The technical environment is consistent。

　　Third, the Bet365 app download method is too single, which affects the effect of the conclusion.By using keyword analysis to examine the research methods of data news papers, we found that most of my country’s data news papers use qualitative research methods，The literature analysis method is widely used，The second is case study method and interview method，Experimental methods are rarely used。And in papers using quantitative research methods，Highest usage of content analysis，The second is the questionnaire survey method。In foreign Bet365 app download papers，The adoption of qualitative research and quantitative research is relatively close。In qualitative research，Document analysis method is mainly used in professional ethics、Papers on the partial theory of audience influence，Case study rules are mostly used in production practice、Pragmatic papers such as editorial office reform。Big differences in research methods at home and abroad，Confirms the findings of domestic scholars on the existence of serious case studies in Bet365 app download research in my country、Conclusion with little empirical data，Because domestic scholars focus on empirical analysis in the research of Bet365 app download，Little exploration based on scientific experiments and quantitative basis，Affects the persuasiveness of the research conclusion、Realistic guidance and academic innovation。

　　Fourth, the openness of interdisciplinary interaction and Bet365 app download needs to be strengthened.Published Bet365 app download papers basically belong to the journalism and communication discipline，Although most of them contain keywords such as "big data", "data collection", "data mining" and "visualization"，But limited by the single nature of the journal，It also proves that Bet365 app download research has not received much attention from data science in the country、Computer Science、Recognition of statistics and other disciplines。In contrast, some foreign data news papers are distributed in statistics、Informatics、Computer、Artificial Intelligence and other subject areas，Although there are not many，Reflects the openness of Bet365 app download research，Reflecting the interaction and integration between disciplines。Especially the research on the application of Bet365 app download to data science，Reflects the professionalism and development trends of Bet365 app download from the side。

Technology brings changes in media production practices，Many media regard Bet365 app download as a "handle" for media transformation。At the same time，Academic circles also pay continued attention，Produced a lot of research results。Knowledge graph depiction of 290 Chinese journal documents，Helps us recognize the problems existing in Bet365 app download research，Expand your horizons and ideas，Discover new research topics，To improve the domestic data news research system，Promote the academic value of relevant research。

　　(This article is a phased result of the project of the Marxist Bet365 app download Research Center of Renmin University of China (19MXG11)；Funded by Renmin University of China’s 2019 Central Higher Education Institutions Construction World-Class University (Discipline) and Characteristic Development Guidance Special Project (19RXW137)

(Author’s unit: School of Bet365 app download, Renmin University of China)