AIMC Topic: Nonlinear Dynamics

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Response prediction of nonlinear hysteretic systems by deep neural networks.

Neural networks : the official journal of the International Neural Network Society Dec 18, 2018
Nonlinear hysteretic systems are common in many engineering problems. The maximum response estimation of a nonlinear hysteretic system under stochastic excitations is an important task for designing and maintaining such systems. Although a nonlinear ...
Neural Networks, Computer Forecasting Nonlinear Dynamics Humans
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Perceptual Decision-Making: Biases in Post-Error Reaction Times Explained by Attractor Network Dynamics.

The Journal of neuroscience : the official journal of the Society for Neuroscience Nov 30, 2018
Perceptual decision-making is the subject of many experimental and theoretical studies. Most modeling analyses are based on statistical processes of accumulation of evidence. In contrast, very few works confront attractor network models' predictions ...
Perception Memory Discrimination, Psychological Nonlinear Dynamics Synapses Computer Simulation Models, Neurological Reaction Time Psychomotor Performance Decision Making Neural Networks, Computer Algorithms
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Fixed Points of Competitive Threshold-Linear Networks.

Neural computation Nov 21, 2018
Threshold-linear networks (TLNs) are models of neural networks that consist of simple, perceptron-like neurons and exhibit nonlinear dynamics determined by the network's connectivity. The fixed points of a TLN, including both stable and unstable equi...
Models, Neurological Neurons Nonlinear Dynamics Humans Neural Networks, Computer Nerve Net
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A unified non-linear approach based on recurrence quantification analysis and approximate entropy: application to the classification of heart rate variability of age-stratified subjects.

Medical & biological engineering & computing Nov 3, 2018
This paper presents a unified approach based on the recurrence quantification analysis (RQA) and approximate entropy (ApEn) for the classification of heart rate variability (HRV). In this paper, the optimum tolerance threshold (r) corresponding to Ap...
Heart Rate Nonlinear Dynamics Entropy Age Factors Data Interpretation, Statistical Aged Neural Networks, Computer Aged, 80 and over Databases, Factual Models, Cardiovascular Middle Aged Humans Adult Support Vector Machine
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Structural, dynamical and symbolic observability: From dynamical systems to networks.

PloS one Oct 31, 2018
Classical definitions of observability classify a system as either being observable or not. Observability has been recognized as an important feature to study complex networks, and as for dynamical systems the focus has been on determining conditions...
Observation Models, Theoretical Neural Networks, Computer Nonlinear Dynamics Algorithms
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A neurodynamic approach to nonlinear optimization problems with affine equality and convex inequality constraints.

Neural networks : the official journal of the International Neural Network Society Oct 28, 2018
This paper presents a neurodynamic approach to nonlinear optimization problems with affine equality and convex inequality constraints. The proposed neural network endows with a time-varying auxiliary function, which can guarantee that the state of th...
Nonlinear Dynamics Neural Networks, Computer Computer Simulation Algorithms Socioeconomic Factors
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Deep active inference.

Biological cybernetics Oct 22, 2018
This work combines the free energy principle and the ensuing active inference dynamics with recent advances in variational inference in deep generative models, and evolution strategies to introduce the "deep active inference" agent. This agent minimi...
Humans Perception Neural Networks, Computer Environment Algorithms Cognition Models, Theoretical Nonlinear Dynamics Goals
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Control of a muscle-like soft actuator via a bioinspired approach.

Bioinspiration & biomimetics Oct 9, 2018
Soft actuators have played an indispensable role in generating compliant motions of soft robots. Among the various soft actuators explored for soft robotic applications, dielectric elastomer actuators (DEAs) have caught the eye with their intriguing ...
Motor Neurons Musculoskeletal System Motion Feedback Cerebellum Nonlinear Dynamics Biomimetics Robotics Elastomers
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Early Expression Detection via Online Multi-Instance Learning With Nonlinear Extension.

IEEE transactions on neural networks and learning systems Oct 3, 2018
Video-based facial expression recognition has received substantial attention over the past decade, while early expression detection (EED) is still a relatively new and challenging problem. The goal of EED is to identify an expression as quickly as po...
Artificial Intelligence Machine Learning Nonlinear Dynamics Video Recording Time Factors Biometric Identification Humans Neural Networks, Computer Pattern Recognition, Automated Facial Expression
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Neighborhood preserving neural network for fault detection.

Neural networks : the official journal of the International Neural Network Society Oct 1, 2018
A novel statistical feature extraction method, called the neighborhood preserving neural network (NPNN), is proposed in this paper. NPNN can be viewed as a nonlinear data-driven fault detection technique through preserving the local geometrical struc...
Nonlinear Dynamics Neural Networks, Computer
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