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Alexander Theus

3 accepted papers

2026

How does the optimizer implicitly bias the model merging loss landscape?

ICLR 2026poster

Model merging methods combine models with different capabilities into a single one while maintaining the same inference cost. Two popular approaches are lin- ear interpolation, which linearly interpolates between model weights, and task arithmetic, which combines task vectors obtained by the differe…

Cited by 0SourceScholar
2025

Generalized Linear Mode Connectivity for Transformers

NeurIPS 2025oral

Understanding the geometry of neural network loss landscapes is a central question in deep learning, with implications for generalization and optimization. A striking phenomenon is $\textit{linear mode connectivity}$ (LMC), where independently trained models can be connected by low- or zero-barrier…

Cited by 0SourceScholar
2024

Towards Meta-Pruning via Optimal Transport

ICLR 2024spotlight

Structural pruning of neural networks conventionally relies on identifying and discarding less important neurons, a practice often resulting in significant accuracy loss that necessitates subsequent fine-tuning efforts. This paper introduces a novel approach named Intra-Fusion, challenging this prev…