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Smooth Function Approximation by Deep Neural Networks with General Activation Functions [PDF]

open access: yesEntropy, 2019
There has been a growing interest in expressivity of deep neural networks. However, most of the existing work about this topic focuses only on the specific activation function such as ReLU or sigmoid.
Ilsang Ohn, Yongdai Kim
doaj   +2 more sources

High-Dimensional Function Approximation With Neural Networks for Large Volumes of Data [PDF]

open access: yesIEEE Transactions on Neural Networks and Learning Systems, 2018
Approximation of high-dimensional functions is a challenge for neural networks due to the curse of dimensionality. Often the data for which the approximated function is defined resides on a low-dimensional manifold and in principle the approximation of ...
Peter András
exaly   +2 more sources

Function approximation method based on weights gradient descent in reinforcement learning

open access: yes网络与信息安全学报, 2023
Function approximation has gained significant attention in reinforcement learning research as it effectively addresses problems with large-scale, continuous state, and action space.Although the function approximation algorithm based on gradient descent ...
Xiaoyan QIN   +3 more
doaj   +3 more sources

Arbitrarily Accurate Analytical Approximations for the Error Function

open access: yesMathematical and Computational Applications, 2022
A spline-based integral approximation is utilized to define a sequence of approximations to the error function that converge at a significantly faster manner than the default Taylor series.
Roy M. Howard
doaj   +1 more source

Schröder-Based Inverse Function Approximation

open access: yesAxioms, 2023
Schröder approximations of the first kind, modified for the inverse function approximation case, are utilized to establish general analytical approximation forms for an inverse function.
Roy M. Howard
doaj   +1 more source

Automatic Convexity Deduction for Efficient Function’s Range Bounding

open access: yesMathematics, 2021
Reliable bounding of a function’s range is essential for deterministic global optimization, approximation, locating roots of nonlinear equations, and several other computational mathematics areas.
Mikhail Posypkin, Oleg Khamisov
doaj   +1 more source

Automatic Generation Control for Distributed Multi-Region Interconnected Power System with Function Approximation

open access: yesFrontiers in Energy Research, 2021
Solving the energy crisis and environmental pollution requires large-scale access to distributed energy and the popularization of electric vehicles.
Yuchen Liu   +5 more
doaj   +1 more source

Multiple Function Approximation — A New Approach Using Asymmetric Complex Fuzzy Inference System [PDF]

open access: yesVietnam Journal of Computer Science, 2019
This paper proposes an asymmetric complex fuzzy inference system (ACFIS) that improves a conventional fuzzy inference system (FIS) in two ways. First, the proposed model uses the novel neural-net-like aim–object parts, making the model flexible, in terms
Chia-Hao Tu, Chunshien Li
doaj   +1 more source

Digital Fixed-Point Low Powered Area Efficient Function Estimation for Implantable Devices

open access: yesIEEE Access, 2022
This article introduces a new multiplier-less 32-bit fixed point architecture for estimating complex non-linear functions based on adapted shift only series expansions.
James B. Romaine   +2 more
doaj   +1 more source

Using an Opportunity Matrix to Select Centers for RBF Neural Networks

open access: yesAlgorithms, 2023
When designed correctly, radial basis function (RBF) neural networks can approximate mathematical functions to any arbitrary degree of precision. Multilayer perceptron (MLP) neural networks are also universal function approximators, but RBF neural ...
Daniel S. Soper
doaj   +1 more source

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