5 citations · 6 across the 5 of their papers we have counts for
5 papers
Exact Replica Symmetric solution for transverse field Hopfield model under finite Trotter size
Koki Okajima, Yoshiyuki Kabashima
We analyze the quantum Hopfield model in which an extensive number of patterns are embedded in the presence of a uniform transverse field. This analysis employs the replica method…
Asymptotic Dynamics of Alternating Minimization for Bilinear Regression
Koki Okajima, Takashi Takahashi
This study investigates the dynamics of alternating minimization applied to a bilinear regression task with normally distributed covariates, under the asymptotic system size limit…
Average case analysis of Lasso under ultra-sparse conditions
Koki Okajima, Xiangming Meng, Takashi Takahashi +1
We analyze the performance of the least absolute shrinkage and selection operator (Lasso) for the linear model when the number of regressors grows larger keeping the true suppo…
Matrix completion based on Gaussian parameterized belief propagation
Koki Okajima, Yoshiyuki Kabashima
We develop a message-passing algorithm for noisy matrix completion problems based on matrix factorization. The algorithm is derived by approximating message distributions of belief…
Fast Bayesian Deconvolution using Simple Reversible Jump Moves
Koki Okajima, Kenji Nagata, Masato Okada
We propose a Markov chain Monte Carlo-based deconvolution method designed to estimate the number of peaks in spectral data, along with the optimal parameters of each radial basis f…