A python implementation of the algorithm used to generate optimal piecewise linear approximations of convex functions proposed by Imamoto and Tang [1]. The algorithm uses an iterative search to find ...
The Annals of Statistics, Vol. 49, No. 5 (October 2021), pp. 2531-2551 (21 pages) Proposed by Donoho (Ann. Statist. 25 (1997) 1870–1911), Dyadic CART is a nonparametric regression method which ...
from sympy.abc import i, j, n from sympy import * x = IndexedBase('x') U =-Sum(Piecewise((KroneckerDelta(i, j, (1, n)), x[i] > 0), (0, True)), (i, 1, n)) print ...
PIECEWISE H¹ FUNCTIONS AND VECTOR FIELDS ASSOCIATED WITH MESHES GENERATED BY INDEPENDENT REFINEMENTS
We consider piecewise H¹ functions and vector fields associated with a class of meshes generated by independent refinements and show that they can be effectively analyzed in terms of the number of ...
ABSTRACT: In this paper, we propose a method for finding the best piecewise linearization of nonlinear functions. For this aim, we try to obtain the best approximation of a nonlinear function as a ...
Abstract: This paper describes piecewise linear circuits operating directly on first-order multi-level and second-order binary sigma-delta modulated signals. The sigma-delta modulated signal sequences ...
Abstract: Piecewise linear (PWL) circuits operating on sigma-delta (/spl Sigma//spl Delta/) modulated signals are proposed. The proposed circuit library includes an absolute circuit, a min/max ...
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