Matthew Callahan

Matthew Callahan

A PhD Student at Oregon State University

Publications

On Momentum Acceleration for Randomized Coordinate Descent in Matrix Completion

Published in IEEE International Conference on Acoustics Speech and Signal Processing (ICASSP), 2025

[Paper] [Poster] [PDF]
Bibtex
@inproceedings{callahan2025momentum,
 title={On Momentum Acceleration for Randomized Coordinate Descent in Matrix Completion}, author={Callahan, Matthew and Vu, Trung and Raich, Raviv}, booktitle={ICASSP 2025-2025 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)}, pages={1--5}, year={2025}, organization={IEEE} }

Provable Randomized Coordinate Descent for Matrix Completion

Published in IEEE International Conference on Acoustics Speech and Signal Processing (ICASSP), 2024

Here, we study a regularization-free randomized coordinate descent method that uses an efficient periodic refactorization to guarantee a linear convergence rate.

[Paper]
Bibtex
@inproceedings{callahan2024provable,
 title={Provable Randomized Coordinate Descent for Matrix Completion}, author={Callahan, Matthew and Vu, Trung and Raich, Raviv}, booktitle={ICASSP 2024-2024 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)}, pages={9421--9425}, year={2024}, organization={IEEE} }