Jingfeng Wu
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uuujf.bsky.social
Jingfeng Wu
@uuujf.bsky.social
Postdoc at Simons at UC Berkeley; alumnus of Johns Hopkins & Peking University; deep learning theory.

https://uuujf.github.io
sharing a new paper w/ Peter Bartlett, @jasondeanlee.bsky.social @shamkakade.bsky.social, Bin Yu

ppl talking about implicit regularization, but how good is it? We show it's surprisingly effective: GD dominates ridge for linear regression, w/ more cool stuff on GD vs SGD

arxiv.org/abs/2509.17251
September 26, 2025 at 3:49 AM
Lassen in August
September 1, 2025 at 9:04 PM
Sharing two new papers on accelerating GD via large stepsizes!

Classical GD analysis assumes small stepsizes for stability. However, in practice, GD is often used with large stepsizes, which lead to instability.

See my slides for more details on this topic: uuujf.github.io/postdoc/wu20...
June 4, 2025 at 6:55 PM
Rocky mountain in May
May 19, 2025 at 5:24 PM
Yosemite in April
April 28, 2025 at 5:36 PM