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20202026
most citedFrequency-Undersampled Short-Time Fourier Transform

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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…