Evaluation index and construction method of social responsibility of new media in the new era-- Based on the results of LDA theme analysis and questionnaire survey

This paper aims to improve the existing evaluation system of social responsibility of new media, sum up the newly formed evaluation indicators, and make it meet the ever-changing consumer market.In recent years, with the development of network technology and artificial intelligence, the characteristics of new media have also changed,At the same time, each industry needs to change according to the needs of consumers in this field. Therefore, the previous indicators to measure the social responsibility of new media will also change, so we should carry out research on the new indicators. In this paper, the crawler method is used to obtain the user evaluation data of China's new media (wechat, Tictok, kuaishou, Little Red Book), and the text analysis method is used to extract high-frequency words. After that, LDA topic analysis method is used to obtain the public's concerns about the four major aspects of new media: operation technology guarantee, user experience, reporting on new things, and commercialization degree. Then, the questionnaire was designed according to the four themes, and the data was analyzed by XGBoast algorithm to get the ranking of the public's concerns under the four themes. According to the ranking, the indicators of fulfilling social responsibility in the new era of new media were determined. This paper is not restricted to the traditional social responsibility evaluation system, but uses big data analysis, from the perspective of consumers, puts forward the new era of new media social responsibility evaluation index and travel mode, so as to make it closer to life.