1 citations · 1 across the 2 of their papers we have counts for
3 papers
math.OC2026
One-Dimensional Nonnegative Spline Smoothing via Convex Semi-Infinite Programming with a Cutting-Plane Method
Hiroki Arai, Daichi Kitahara
Spline functions are smooth piecewise polynomials widely used for interpolation and smoothing, and nonnegative spline smoothing is also studied for nonnegative data. Previous resea…
eess.SP2023
Convex Estimation of Sparse-Smooth Power Spectral Densities from Mixtures of Realizations with Application to Weather Radar
Hiroki Kuroda, Daichi Kitahara, Eiichi Yoshikawa +2
In this paper, we propose a convex optimization-based estimation of sparse and smooth power spectral densities (PSDs) of complex-valued random processes from mixtures of realizatio…
eess.SP2020★ 1 cited
Frequency-Undersampled Short-Time Fourier Transform
Daichi Kitahara
The short-time Fourier transform (STFT) usually computes the same number of frequency components as the frame length while overlapping adjacent time frames by more than half. As a…