Results 41 to 50 of about 219,337 (309)

Piecewise Linear Regression Based on Plane Clustering

open access: yesIEEE Access, 2019
Piecewise linear regressions have shown many successful applications in image denoising, signal process, and data mining fields. In essence, they attempt to seek multiple linear functions (piecewise/stepwise function) to fit the given scatter data points
Xubing Yang   +6 more
doaj   +1 more source

3D‐Printed Serial Snap‐Through Architectures for Programmable Mechanical Response

open access: yesAdvanced Engineering Materials, EarlyView.
A serial snap‐through architecture is realized using compact 3D‐printed von Mises truss units arranged in a staged cascade. Their geometry and boundary conditions program multistage mechanical responses with plateaux and re‐hardening regimes. An inverted‐compliance model predicts these behaviors and enables analytical design of programmable force ...
Filipe A. Santos
wiley   +1 more source

Discontinuous differential equation for modelling the Antarctic Circumpolar Current

open access: yesCommunications in Analysis and Mechanics
In this paper, we were concerned with the existence of the solution related to the discontinuous differential equation, which corresponded to the stratification phenomenon in the Antarctic Circumpolar Current (ACC). By considering the piecewise vorticity
Michal Fečkan, Shan Li, JinRong Wang
doaj   +1 more source

Determining the Lyapunov Spectrum of Continuous-Time 1D and 2D Multiscroll Chaotic Oscillators via the Solution of m-PWL Variational Equations

open access: yesAbstract and Applied Analysis, 2013
An algorithm to compute the Lyapunov exponents of piecewise linear function-based multidirectional multiscroll chaotic oscillators is reported. Based on the m regions in the piecewise linear functions, the suggested algorithm determines the individual ...
Jesus Manuel Munoz-Pacheco   +3 more
doaj   +1 more source

Discrete piecewise linear functions

open access: yesEuropean Journal of Combinatorics, 2010
The concept of permutograph is introduced and properties of integral functions on permutographs are established. The central result characterizes the class of integral functions that are representable as lattice polynomials. This result is used to establish lattice polynomial representations of piecewise linear functions on convex domains and ...
openaire   +3 more sources

On the Importance of Normalisation Layers in Deep Learning with Piecewise Linear Activation Units

open access: yes, 2015
Deep feedforward neural networks with piecewise linear activations are currently producing the state-of-the-art results in several public datasets.
Carneiro, Gustavo, Liao, Zhibin
core   +1 more source

Transistor‐Level Activation Functions via Two‐Gate Designs: From Analog Sigmoid and Gaussian Control to Real‐Time Hardware Demonstrations

open access: yesAdvanced Materials, EarlyView.
Screen gate‐based transistors are presented, enabling tunable analog sigmoid and Gaussian activations. The SA‐transistor improves MRI classification accuracy, while the GA‐transistor supports precise Gaussian kernel tuning for forecasting. Both functions are implemented in a single device, offering compact, energy‐efficient analog AI processing ...
Junhyung Cho   +9 more
wiley   +1 more source

Optimal Control for a Class of Chaotic Systems

open access: yesJournal of Applied Mathematics, 2012
This paper proposes the optimal control methods for a class of chaotic systems via state feedback. By converting the chaotic systems to the form of uncertain piecewise linear systems, we can obtain the optimal controller minimizing the upper bound on ...
Jianxiong Zhang, Wansheng Tang
doaj   +1 more source

Stability of Traveling Fronts in a Neural Field Model

open access: yesMathematics, 2023
We investigate the stability of traveling front solutions in the neural field model. This model has been studied intensively regarding propagating patterns with saturating Heaviside gain for neuron firing activity.
Dominick Macaluso, Yixin Guo
doaj   +1 more source

Piecewise Linear Function Fitting via Mixed-Integer Linear Programming

open access: yesINFORMS Journal on Computing, 2020
Piecewise linear (PWL) functions are used in a variety of applications. Computing such continuous PWL functions, however, is a challenging task. Software packages and the literature on PWL function fitting are dominated by heuristic methods. This is true for both fitting discrete data points and continuous univariate functions.
Steffen Rebennack, Vitaliy Krasko
openaire   +2 more sources

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