collaborators

5 papers

math.NA2026

Fast Differentiable SVD on GPU via Polar Decomposition

Uliana Parkina, Askar Tsyganov, Sergei Kudriashov +2

We present a fully GPU-oriented SVD pipeline based on polar decomposition, motivated by iterative methods that rely solely on matrix multiplications, such as the Newton-Schulz iter…

cs.CC2026

A lower bound for matrix multiplication

Askar Tsyganov, Uliana Parkina, Sergey Samsonov +1

We prove that, over any field, the bilinear complexity of multiplying a matrix by a matrix is strictly greater than . In particular, every exact bili…

cs.IR2026

Bradley-Terry Rankings for Recommender Systems Across Dataset Taxonomies

Ekaterina Grishina, Stepan Kuznetsov, Askar Tsyganov +8

The ranking of recommendation algorithms is a challenging problem since model performance is sensitive to dataset characteristics such as sparsity, sequential structure, and scale.…

cs.LG2025

gfnx: Fast and Scalable Library for Generative Flow Networks in JAX

Daniil Tiapkin, Artem Agarkov, Nikita Morozov +4

In this paper, we present gfnx, a fast and scalable package for training and evaluating Generative Flow Networks (GFlowNets) written in JAX. gfnx provides an extensive set of envir…

cs.LG2025

Matrix-Free Two-to-Infinity and One-to-Two Norms Estimation

Askar Tsyganov, Evgeny Frolov, Sergey Samsonov +1

In this paper, we propose new randomized algorithms for estimating the two-to-infinity and one-to-two norms in a matrix-free setting, using only matrix-vector multiplications. Our…