Twitter(推特)是一个社交网络及微博客服务的网站。它利用无线网络,有线网络,通信技术,进行即时通讯,是微博客的典型应用。

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主题: TIMME-Twitter Ideology-detection via Multi-task Multi-relational Embedding

摘要: 跨平台帐户匹配在社交网络分析中起着重要作用,并且有利于广泛的应用。但是,现有方法要么严重依赖高质量的用户生成内容(包括用户配置文件),要么遭受数据不足的问题为了解决这一问题,我们提出了一种新颖的框架,该框架同时考虑了本地网络结构和超图结构上的多级图卷积。所提出的方法克服了现有工作的数据不足的问题,并且不必依赖于用户人口统计信息。此外,为了使所提出的方法能够处理大规模社交网络,我们提出了一种两阶段空间调节机制,以在基于网络分区的并行训练和不同社交网络上的帐户匹配中对齐嵌入空间。在两个大型的现实生活社交网络上进行了广泛的实验。实验结果表明,所提出的方法在很大程度上优于最新模型。

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Citizen-generated counter speech is a promising way to fight hate speech and promote peaceful, non-polarized discourse. However, there is a lack of large-scale longitudinal studies of its effectiveness for reducing hate speech. We investigate the effectiveness of counter speech using several different macro- and micro-level measures of over 180,000 political conversations that took place on German Twitter over four years. We report on the dynamic interactions of hate and counter speech over time and provide insights into whether, as in `classic' bullying situations, organized efforts are more effective than independent individuals in steering online discourse. Taken together, our results build a multifaceted picture of the dynamics of hate and counter speech online. They suggest that organized hate speech produced changes in the public discourse. Counter speech, especially when organized, could help in curbing hate speech in online discussions.

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Citizen-generated counter speech is a promising way to fight hate speech and promote peaceful, non-polarized discourse. However, there is a lack of large-scale longitudinal studies of its effectiveness for reducing hate speech. We investigate the effectiveness of counter speech using several different macro- and micro-level measures of over 180,000 political conversations that took place on German Twitter over four years. We report on the dynamic interactions of hate and counter speech over time and provide insights into whether, as in `classic' bullying situations, organized efforts are more effective than independent individuals in steering online discourse. Taken together, our results build a multifaceted picture of the dynamics of hate and counter speech online. They suggest that organized hate speech produced changes in the public discourse. Counter speech, especially when organized, could help in curbing hate speech in online discussions.

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