| 英文摘要
| As the emergence of social media may have great impact on the one-sided communication pattern in China, many traditional news agencies show great passion on posting news and talking with audience on Sina Weibo. However, for the purpose of censorship, since the beginning of 2018, editors of media weibo accounts have the privilege to choose which comments can be shown in public, thus the right to express freely on news turning to be shut down.
This paper tend to find what kind of posts’s comment-status are more likely to be set as ‘limited’. The full content of posts, comments and comment-status of @新華視點，@澎湃新聞，@人民日報 and @新京報 within one year (from Feb. 2018 to Feb. 2019) were collected by crawler. Statistical method Chi-squared feature selection is used for selecting words that influence the comment-status of posts. Then the approach RR function () become highly effective in filtering words that only have impact on ‘limited’ comment-status posts. Result shows that most of the words are related to politicians or political affairs, which could also imply that posts with these selected words are more likely to be set into ‘limited’ comment-status.
And also, by utilizing Structure Topic Model, corpus from those 4 media in Sina Weibo are classified as about 30-40 topics. Comparing the average gamma value of the two groups (limited and unlimited) in each topic, researcher find in some topics the average gamma value of ‘limited’ group are better than that in ‘unlimited’ group. Furthermore, the result of T-test on that difference between the two groups provide statistical proof. It is shown that posts in political or politics-related topics are more likely to be set as ‘limited’ comment-status.
Editors not only choose which comments to be shown in public, but also delete some comments directly. After collecting all the comments for many times through the timeline during a short period, researcher find that the comment-status of posts were changed and some comments of posts were also omitted.
This research reveals that the communication between media and audience has been restricted since Sina Weibo equipped editors with that privilege in 2018. To be more specific, in order to censor sensitive content and prevent them from publishing, Sina Weibo provides convenience for those media accounts and in return, those media weibo accounts use such convenience for self-censorship. |
