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stat.ML2026
Brenier Isotonic Regression
Han Bao, Amirreza Eshraghi, Yutong Wang
Isotonic regression (IR) is shape-constrained regression to maintain a univariate fitting curve non-decreasing, which has numerous applications including single-index models and pr…
stat.ML2026
Spectral Gradient Descent Mitigates Anisotropy-Driven Misalignment: A Case Study in Phase Retrieval
Guillaume Braun, Han Bao, Wei Huang +1
Spectral gradient methods, such as the Muon optimizer, modify gradient updates by preserving directional information while discarding scale, and have shown strong empirical perform…