FedKG:一种基于知识蒸的联邦图法,用于社交机器人检测
Xiujuan Wang1, Kangmiao Chen1, Keke Wang1
1Faculty of Information Technology, Beijing University of Technology, Beijing 100124, China.
Sensors (Basel, Switzerland)
|June 19, 2024
概括
这项研究引入了联合学习方法与关系图卷积神经网络 (RGCN) 结合,用于检测恶意社交机器人. 该方法有效地处理数据异质性,提高了社交网络中检测准确度.
科学领域:
- 计算机科学 计算机科学
- 网络安全 网络安全
- 人工智能的人工智能
背景情况:
- 恶意社交机器人通过传播错误信息来威胁社交网络安全.
- 数据稀缺和标签成本阻碍了集中式机器人检测.
- 联合学习提供了一个去中心化的方法来培训模型,而不需要共享原始数据.
研究的目的:
- 开发一个有效的联合社会机器人检测模型.
- 解决用于机器人检测的联合学习中的数据异质性挑战.
- 为了提高检测恶意社交机器人的准确性和效率.
主要方法:
- 结合联合学习与关系图卷积神经网络 (RGCN).
- 利用了阶级级的交叉损失,用于当地模型培训,以处理阶级不平衡.
- 应用知识蒸技术,包括全球生成器和服务器端知识集成,以管理数据异质性.
主要成果:
- 拟议的方法在异质数据场景中证明了社交机器人检测的有效性.
- 与基线方法相比,检测准确度提高了3-10%,特别是在数据异质性更高的情况下.
- 在最少的通信回合下达到指定精度,表明效率.
结论:
- 联合RGCN模型与知识蒸是社交机器人检测的强大解决方案.
- 该方法成功地减轻了数据不平衡和异质性带来的挑战.
- 这种方法为加强社交网络对恶意机器人的安全提供了一个有希望的方向.
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