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math.OC2022★ 5 cited
Reproducibility in Optimization: Theoretical Framework and Limits
Kwangjun Ahn, Prateek Jain, Ziwei Ji +3
We initiate a formal study of reproducibility in optimization. We define a quantitative measure of reproducibility of optimization procedures in the face of noisy or error-prone op…
cs.LG2022
Agnostic Learnability of Halfspaces via Logistic Loss
Ziwei Ji, Kwangjun Ahn, Pranjal Awasthi +2
We investigate approximation guarantees provided by logistic regression for the fundamental problem of agnostic learning of homogeneous halfspaces. Previously, for a certain broad…