MatrixKAN: Parallelized Kolmogorov-Arnold Network

Fuente: arXiv
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Auteurs principaux: Coffman, Cale, Chen, Lizhong
Format: Preprint
Publié: 2025
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author Coffman, Cale
Chen, Lizhong
author_facet Coffman, Cale
Chen, Lizhong
contents Kolmogorov-Arnold Networks (KAN) are a new class of neural network architecture representing a promising alternative to the Multilayer Perceptron (MLP), demonstrating improved expressiveness and interpretability. However, KANs suffer from slow training and inference speeds relative to MLPs due in part to the recursive nature of the underlying B-spline calculations. This issue is particularly apparent with respect to KANs utilizing high-degree B-splines, as the number of required non-parallelizable recursions is proportional to B-spline degree. We solve this issue by proposing MatrixKAN, a novel optimization that parallelizes B-spline calculations with matrix representation and operations, thus significantly improving effective computation time for models utilizing high-degree B-splines. In this paper, we demonstrate the superior scaling of MatrixKAN's computation time relative to B-spline degree. Further, our experiments demonstrate speedups of approximately 40x relative to KAN, with significant additional speedup potential for larger datasets or higher spline degrees.
format Preprint
id arxiv_https___arxiv_org_abs_2502_07176
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle MatrixKAN: Parallelized Kolmogorov-Arnold Network
Coffman, Cale
Chen, Lizhong
Machine Learning
Kolmogorov-Arnold Networks (KAN) are a new class of neural network architecture representing a promising alternative to the Multilayer Perceptron (MLP), demonstrating improved expressiveness and interpretability. However, KANs suffer from slow training and inference speeds relative to MLPs due in part to the recursive nature of the underlying B-spline calculations. This issue is particularly apparent with respect to KANs utilizing high-degree B-splines, as the number of required non-parallelizable recursions is proportional to B-spline degree. We solve this issue by proposing MatrixKAN, a novel optimization that parallelizes B-spline calculations with matrix representation and operations, thus significantly improving effective computation time for models utilizing high-degree B-splines. In this paper, we demonstrate the superior scaling of MatrixKAN's computation time relative to B-spline degree. Further, our experiments demonstrate speedups of approximately 40x relative to KAN, with significant additional speedup potential for larger datasets or higher spline degrees.
title MatrixKAN: Parallelized Kolmogorov-Arnold Network
topic Machine Learning
url https://arxiv.org/abs/2502.07176