Research On The Visualization And Analysis Of Text Data Of Surveying And Mapping Journals

Scientific literature is used to describe the achievements in academic research.It's not only a method of promoting academic connection,but also a tool to spread the academic research results.Researching on the content of scientific literature could find out the research hotspots,the development rules of the discipline and other implicit and useful information.In the field of Surveying and mapping,there are numerous and many kinds of papers.They are lacking effective evaluation and comprehensively grooming.The problems of what is the hotspots and how the discipline developed have not been solved yet.How to be more efficiently and comprehensively understanding of the history and development of Surveying and mapping discipline has become an important problem.In this paper,data processing method,data analysis methods and data visualization methods of surveying and mapping journals are studied in order to analyze the academic research situation and development of Surveying and mapping discipline from the quantitative point of view.The main work of this paper is summarized as the following four aspects:(1)The paper studies on the journal of Surveying and mapping structured text data processing method.In this paper,Surveying and mapping journal's data table structure is designed,data feature of entity text data mapping journal is analyzed,and the corresponding relationship between data attributes and data characteristics between entities is constructed,in order to complete structured data.(2)This paper studies the method of automatic text classification and topic extraction of the data of Surveying and mapping journals.This paper proposes a method of automatic classification of the content of a document based on a priori knowledge database and studies word frequency analysis and co-occurrence analysis to extract the content of academic papers(3)The general process of data visualization and the visualization scheme are studied.According to characteristics of text data in the Surveying and mapping journals,the general process of Surveying and mapping journal text data visualization is proposed,the visualization of data types is summarized,the corresponding relationship between the data types and visualization methods is constructed,and the method of presenting correlation data to node-link diagram and position attribution to statistic map is studied.(4)The quantitative description of the research status of Surveying and mapping is completed.In this paper,Surveying and mapping journals are analyzed by the methods of content classification,high-frequency words definition,calculation of Price's law and co-word analysis,in order to reflect the research hotspot in recent years,determine the active-authors,studied the authors' cooperation and the affiliations' cooperation,and find out the regularities of posting positions' distribution.