no code implementations • 17 May 2023 • Ryota Kawasumi, Koujin Takeda
We study the problem of hyperparameter tuning in sparse matrix factorization under Bayesian framework.
no code implementations • 17 Apr 2023 • Ryota Kawasumi, Tsuyoshi Yoneda
In this paper, we clarify the crucial difference between a deep neural network and the Fourier series.
no code implementations • 14 Mar 2018 • Ryota Kawasumi, Koujin Takeda
We derive analytical expression of matrix factorization/completion solution by variational Bayes method, under the assumption that observed matrix is originally the product of low-rank dense and sparse matrices with additive noise.