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概括

渐变倒置攻击 (GIA) 威胁到联邦学习 (FL) 的隐私. 这项研究对GIA方法进行了分类,发现基于优化的GIA最实用但不完美,而其他方法则不切实际. 提出的防御措施是为了加强FL的安全.

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