Early detection of cyberbullying on social media networks

Manuel F. Lopez-Vizcaino; Francisco J. Novoa; Victor Carneiro; Fidel Cacheda

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Early detection of cyberbullying on social media networks

机译：早期检测社交媒体网络上的网络欺凌

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Cyberbullying is an important issue for our society and has a major negative effect on the victims, that can be highly damaging due to the frequency and high propagation provided by Information Technologies. Therefore, the early detection of cyberbullying in social networks becomes crucial to mitigate the impact on the victims. In this article, we aim to explore different approaches that take into account the time in the detection of cyberbullying in social networks. We follow a supervised learning method with two different specific early detection models, named threshold and dual. The former follows a more simple approach, while the latter requires two machine learning models. To the best of our knowledge, this is the first attempt to investigate the early detection of cyberbullying. We propose two groups of features and two early detection methods, specifically designed for this problem. We conduct an extensive evaluation using a real world dataset, following a time-aware evaluation that penalizes late detections. Our results show how we can improve baseline detection models up to 42%.

机译：网络欺凌是我们社会的一个重要问题，对受害者产生了重大负面影响，这可能由于信息技术提供的频率和高传播而导致的严重损害。因此，在社交网络中的网络欺凌的早期发现是对减轻对受害者的影响至关重要。在本文中，我们的目标是探讨不同的方法，考虑到在社交网络中检测网络欺凌的时间。我们遵循具有两个不同特定早期检测模型的监督学习方法，命名为阈值和双重。前者遵循更简单的方法，而后者需要两种机器学习模型。据我们所知，这是第一次尝试调查网络欺凌的早期检测。我们提出了两组特征和两种早期检测方法，专门为此问题设计。在惩罚后期检测的时间感知评估之后，我们使用现实世界数据集进行广泛的评估。我们的结果表明我们如何改善高达42％的基线检测模型。

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《Future generation computer systems》 |2021年第5期|219-229|共11页
作者
Manuel F. Lopez-Vizcaino; Francisco J. Novoa; Victor Carneiro; Fidel Cacheda;
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作者单位

CITIC Research Center Computer Science and Information Technologies Department University of A Coruna Campus de Elvina A Coruna 15071 Spain;

CITIC Research Center Computer Science and Information Technologies Department University of A Coruna Campus de Elvina A Coruna 15071 Spain;

CITIC Research Center Computer Science and Information Technologies Department University of A Coruna Campus de Elvina A Coruna 15071 Spain;

CITIC Research Center Computer Science and Information Technologies Department University of A Coruna Campus de Elvina A Coruna 15071 Spain;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Cyberbullying; Social networks; Early detection; Machine learning;

机译：网络欺凌;社交网络;早期发现;机器学习;

Early detection of cyberbullying on social media networks

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