Christos Thrampoulidis

Assistant Professor, University of British Columbia

3 papers at NeurIPS 2025

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Poster Session 2

1 paper

Wednesday, December 3, 2025 · 4:30 PM → 7:30 PM

Exhibit Hall C,D,E

Thumb on the Scale: Optimal Loss Weighting in Last Layer Retraining

#2811 · Nathan Stromberg, Christos Thrampoulidis, Lalitha Sankar

Poster Session 3

1 paper

Thursday, December 4, 2025 · 11:00 AM → 2:00 PM

Exhibit Hall C,D,E

Implicit Bias of Spectral Descent and Muon on Multiclass Separable Data

#3108 Spotlight · Chen Fan, Mark Schmidt, Christos Thrampoulidis

Implicit bias for p-norm normalized steepest descent (NSD) and momentum steepest descent (NMD) algorithms in multi-class linear classification with cross-entropy loss.

Poster Session 5

1 paper

Friday, December 5, 2025 · 11:00 AM → 2:00 PM

Exhibit Hall C,D,E

On the Effect of Negative Gradient in Group Relative Deep Reinforcement Optimization

#209 · Wenlong Deng, Yi Ren, Muchen Li, Danica J. Sutherland, Xiaoxiao Li, Christos Thrampoulidis