並列摘要
In recent years, the influence of social media and online forums on public opinion has grown, leading many people who are interested in manipulating public opinion to start to influence the public opinion by operating community accounts, and the ＂political net army＂ and ＂fake news＂ are produced by these people. It is difficult for ordinary users and even traditional media to judge the news correctly. Therefore, this study looks at the PTT Forum, which has considerable influence on the public opinion in Taiwan. According to the experimental conclusions, users who intentionally manipulate public opinion often disguise their behavior and make their behavior close to the average user, resulting in distortion of the analysis results in the experiment.