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Preprints and under review

Which Geometry on Which Layer? A Principled Criterion for Mixed-Optimizer Training

Hiroki Naganuma (equal contribution), Laura Gomezjurado Gonzalez (equal contribution), Mahdi Ghaznavi (equal contribution), Atsushi Nitanda, Ioannis Mitliagkas, Seng Pei Liew, Ryuichiro Hataya

Equal contribution

Under Review · May 2026 (under review)

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How to cite

Hiroki Naganuma, Laura Gomezjurado Gonzalez, Mahdi Ghaznavi, Atsushi Nitanda, Ioannis Mitliagkas, Seng Pei Liew, Ryuichiro Hataya. “Which Geometry on Which Layer? A Principled Criterion for Mixed-Optimizer Training.” Under Review, 2026.

@inproceedings{Naganuma2026Which,
  title = {Which Geometry on Which Layer? A Principled Criterion for Mixed-Optimizer Training},
  author = {Hiroki Naganuma and Laura Gomezjurado Gonzalez and Mahdi Ghaznavi and Atsushi Nitanda and Ioannis Mitliagkas and Seng Pei Liew and Ryuichiro Hataya},
  year = {2026},
  booktitle = {Under Review}
}