图 书 馆
众筹、活动和社交媒体：追踪和揭示社交媒体的众包操纵Crowdturfers, Campaigns, and Social Media: Tracking and Revealing Crowdsourced Manipulation of Social Media |
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| 课程网址: | https://videolectures.net/videos/icwsm2013_lee_social_media |
| 主讲教师: | Kyumin Lee |
| 开课单位: | 信息不详。欢迎您在右侧留言补充。 |
| 开课时间: | 2014-04-03 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | Crowdturfing has recently been identified as a sinister counterpart to the enormous positive opportunities of crowdsourcing. Crowdturfers leverage human-powered crowdsourcing platforms to spread malicious URLs in social media, form "astroturf" campaigns, and manipulate search engines, ultimately degrading the quality of online information and threatening the usefulness of these systems. In this paper we present a framework for "pulling back the curtain" on crowdturfers to reveal their underlying ecosystem. Concretely, we analyze the types of malicious tasks and the properties of requesters and workers in crowdsourcing sites such as Microworkers.com, ShortTask.com and Rapidworkers.com, and link these tasks (and their associated workers) on crowdsourcing sites to social media, by monitoring the activities of social media participants. Based on this linkage, we identify the relationship structure connecting these workers in social media, which can reveal the implicit power structure of crowdturfers identified on crowdsourcing sites. We identify three classes of crowdturfers -- professional workers, casual workers, and middlemen -- and we develop statistical user models to automatically differentiate these workers and regular social media users. |
| 关 键 词: | 众包网站; 社交媒体; 统计用户模型 |
| 课程来源: | videolectures |
| 数据采集: | 2025-05-22：yuhongrui |
| 最后编审: | 2025-05-22：yuhongrui |
| 阅读次数: | 1 |