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arXiv 2303.00902cs.SIcs.CY
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数据持久性偏差对社交媒体研究的影响

The Impact of Data Persistence Bias on Social Media Studies

Tuğrulcan Elmas

摘要:

社交媒体研究经常回顾性地收集数据来分析公众舆论。社交媒体数据可能会随着时间的推移而衰减,并且这种衰减可能会阻止完整数据集的收集。因此,收集的数据集可能与完整的数据集不同,研究可能存在数据持续性偏倚。过去的研究表明,回顾性收集的数据集在文本内容方面在很大程度上代表了原始数据集。然而,没有研究分析数据持久性偏见对社交媒体研究的影响,例如那些关注有争议话题的研究。在这项研究中,我们分析了数据的持久性和偏见,它引入了三种类型的数据集:有争议的话题,趋势的话题,和框架的问题。我们报告哪些主题更有可能遭受这些数据集之间的数据持久性。我们使用政治倾向的变化、潜在有害内容和主题的存在作为衡量标准来量化数据持久性偏差。我们发现,有争议的数据集更有可能遭受数据持久性,并且在回忆时倾向于政治左派。包含潜在有害内容的数据在无争议数据集上的投票率明显较低。总的来说,我们发现右对齐用户推广的主题更容易受到数据持久性的影响。帐户暂停是导致数据删除的主要因素,如果不是唯一的话。我们的研究结果强调了当所采用的数据集容易受到数据持久性偏差的影响时,通过实时的收集数据来解释数据持久性偏差的重要性。

英文摘要:

Social media studies often collect data retrospectively to analyze public opinion. Social media data may decay over time and such decay may prevent the collection of the complete dataset. As a result, the collected dataset may differ from the complete dataset and the study may suffer from data persistence bias. Past research suggests that the datasets collected retrospectively are largely representative of the original dataset in terms of textual content. However, no study analyzed the impact of data persistence bias on social media studies such as those focusing on controversial topics. In this study, we analyze the data persistence and the bias it introduces on the datasets of three types: controversial topics, trending topics, and framing of issues. We report which topics are more likely to suffer from data persistence among these datasets. We quantify the data persistence bias using the change in political orientation, the presence of potentially harmful content and topics as measures. We found that controversial datasets are more likely to suffer from data persistence and they lean towards the political left upon recollection. The turnout of the data that contain potentially harmful content is significantly lower on non-controversial datasets. Overall, we found that the topics promoted by right-aligned users are more likely to suffer from data persistence. Account suspensions are the primary factor contributing to data removals, if not the only one. Our results emphasize the importance of accounting for the data persistence bias by collecting the data in real time when the dataset employed is vulnerable to data persistence bias.

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