no code implementations • 22 Oct 2021 • Wanchuang Zhu, Benjamin Zi Hao Zhao, Simon Luo, Tongliang Liu, Ke Deng
Although we know that the benign gradients and Byzantine attacked gradients are distributed differently, to detect the malicious gradients is challenging due to (1) the gradient is high-dimensional and each dimension has its unique distribution and (2) the benign gradients and the attacked gradients are always mixed (two-sample test methods cannot apply directly).
no code implementations • pproximateinference AABI Symposium 2019 • Chunlin Ji, Jiangsheng Yi, Wanchuang Zhu
Approximate Bayesian Computation (ABC) provides a generic framework of Bayesian inference for likelihood-free models, but sampling based posterior approximation is often time-consuming and has difficulty accessing the convergence.