Zixuan Xia

I am a second-year Master’s student in Computer Science at the University of Bern. I received my Bachelor’s degree in Software Engineering from Xi’an Jiaotong University in China. My research interests lie in optimization algorithms in deep learning, generative models, and computer vision.

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Publications

KOALA++: Efficient Kalman-Based Optimization of Neural Networks with Gradient-Covariance Products

KOALA++: Efficient Kalman-Based Optimization of Neural Networks with Gradient-Covariance Products

Zixuan Xia, Aram Davtyan, Paolo Favaro
NeurIPS, 2025

An extension of KOALA, a neural network optimization algorithm based on Kalman filtering, with implicit full weights covariance matrix.

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