A Study on Research Trends and Knowledge System in Cultural Contents Studies Using Topic Modeling and Text Network Analysis Based on Big Data

Abstract

This paper aims to analyze academic big data in the field of cultural contents studies using topic modeling and text network analysis and explore the research trends and knowledge system. To achieve concrete results, the research was conducted with following goals: first, to determine the important central theme in the research of cultural contents studies; second, to outline the major topics in the field of cultural contents studies; third, to explain how major topics and subjects have changed in the field of cultural contents studies and what their characteristics are; and fourth, how the result of the analysis is visualized on a network map and what its characteristics are. The research followed four steps—data collection, data refinement, data analysis, and integrating and interpretation. The data were collected between 2000, when the very first paper on cultural contents was published in South Korea, and 2020 from 3,685 academic papers. The collected unstructured data were refined for computer-aided analysis. First, nominal morphemes were extracted using a Korean morpheme analyzer; then, various controlling and TF-IDF analyses were applied. 18,027 words from academic papers have undergone topic modeling and text network analysis with a NetMiner program. Topic modeling is a probabilistic algorithm discovering subjects and topics hidden in a large set of documents, which extracts and classifies documents according to the topic. Text network analysis applies the network theories and analysis methods that developed out of sociology to literature analysis, analyzing the structure of connected words in the text and showing the result in the form of a network map. Recent big data analyses are evolving toward utilizing various optimized analytical techniques to enhance the reliability of the analysis result. Thus, this paper used topic modeling and network analysis to draw a result that is optimal for the purpose of our research. This paper contributes to relevant studies as it uses topic modeling and text network analysis to analyze the big data that have accumulated in the field of cultural contents studies. In addition, it makes a significant contribution as it provides a visualized knowledge map to reveal the relationship of keywords and main topics in the field of cultural contents studies, which leads to the intuitive understanding of abstract contents.

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