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We study synaptically coupled neuronal networks to identify the role of coupling delays in network's synchronized behaviors. We consider a network of excitable, relaxation oscillator neurons where two distinct populations, one excitatory…

神经元与认知 · 定量生物学 2018-01-01 Hwayeon Ryu , Sue Ann Campbell

Semi-supervised semantic segmentation (SS-SS) aims to mitigate the heavy annotation burden of dense pixel labeling by leveraging abundant unlabeled images alongside a small labeled set. While current consistency regularization methods…

计算机视觉与模式识别 · 计算机科学 2025-10-01 Haruya Ishikawa , Yoshimitsu Aoki

In this paper a novel distributed algorithm for blind macro calibration in sensor networks based on output synchronization is proposed. The algorithm is formulated as a set of gradient-type recursions for estimating parameters of sensor…

系统与控制 · 计算机科学 2016-03-27 Miloš S. Stanković , Srđan S. Stanković , Karl Henrik Johansson

We derive nearly tight and non-asymptotic convergence bounds for solutions of entropic semi-discrete optimal transport. These bounds quantify the stability of the dual solutions of the regularized problem (sometimes called Sinkhorn…

人工智能 · 计算机科学 2022-05-05 Alex Delalande

We review our recent results on the on-shell description of sine-Gordon model with integrable boundary conditions. We determined the spectrum of boundary states together with their reflection factors by closing the boundary bootstrap and…

高能物理 - 理论 · 物理学 2007-05-23 Z. Bajnok , L. Palla , G. Takacs

In many natural synchronization phenomena, communication between individual elements occurs not directly, but rather through the environment. One of these instances is bacterial quorum sensing, where bacteria release signaling molecules in…

动力系统 · 数学 2015-05-18 Giovanni Russo , Jean-Jacques E. Slotine

When brain signals are recorded in an electroencephalogram or some similar large-scale record of brain activity, oscillatory patterns are typically observed that are thought to reflect the aggregate electrical activity of the underlying…

神经元与认知 · 定量生物学 2013-06-04 Andre Nathan , Valmir C. Barbosa

Finding the conditions that foster synchronization in networked oscillatory systems is critical to understanding a wide range of biological and mechanical systems. However, the conditions proved in the literature for synchronization in…

系统与控制 · 计算机科学 2018-05-09 Zahra Aminzare , Biswadip Dey , Elizabeth N. Davison , Naomi Ehrich Leonard

We study the long-time dynamics of the nonlinear processes modeled by diffusion-transport partial differential equations in non-divergence form with drifts. The solutions are subject to some inhomogeneous Dirichlet boundary condition.…

偏微分方程分析 · 数学 2026-02-11 Luan Hoang , Akif Ibragimov

Synchronized oscillations in networks of inhibitory and excitatory coupled bursting neurons are common in a variety of neural systems from central pattern generators to human brain circuits. One example of the latter is the subcortical…

神经元与认知 · 定量生物学 2011-09-21 Choongseok Park , Leonid L. Rubchinsky

In a network of dynamical systems, concurrent synchronization is a regime where multiple groups of fully synchronized elements coexist. In the brain, concurrent synchronization may occur at several scales, with multiple ``rhythms''…

神经元与认知 · 定量生物学 2007-05-23 Quang-Cuong Pham , Jean-Jacques Slotine

We study the asymptotic diffusion processes with (generally nonlocal) open boundaries in one dimension which are exactly solvable by means of the recently developed recursion formula. We investigate the stationary states, which cannot be…

统计力学 · 物理学 2007-05-23 Akira FUJII

In this study, we apply a mean field theory to the neural network model with two periodic inputs in order to clarify the conditions of synchronies. This mean field theory yields a self-consistent condition for the synchrony and enables us…

生物物理 · 物理学 2013-04-16 Yoichiro Hashizume , Osamu Araki

The balance between excitation and inhibition is crucial for neuronal computation. It is observed that the balanced state of neuronal networks exists in many experiments, yet its underlying mechanism remains to be fully clarified.…

神经元与认知 · 定量生物学 2017-10-17 Qing-long L. Gu , Songting Li , Wei P. Dai , Douglas Zhou , David Cai

A feedforward neural network, including hidden layers, motivated by nonlinear functions (such as Tanh, ReLU, and Sigmoid functions), exhibits uniform approximation properties in Sobolev space, and discontinuous neural networks can reduce…

数值分析 · 数学 2025-05-16 Xiaoyu Wang , Long Yuan , Yao Yu

We investigate the dynamics of a limit of interacting FitzHugh-Nagumo neurons in the regime of large interaction coefficients. We consider the dynamics described by a mean-field model given by a nonlinear evolution partial differential…

偏微分方程分析 · 数学 2018-12-03 Cristobal Quiñinao , Jonathan D. Touboul

For large fully connected neuron networks, we study the dynamics of homogenous assemblies of interacting neurons described by time elapsed models, indicating how the time elapsed since the last discharge construct the probability density of…

偏微分方程分析 · 数学 2016-11-21 Q Weng

We study the critical features of coupling parameter in the synchronization of neural networks with diluted synapses. Based on simulations, the exponential decay form is observed in the extreme case of global coupling among subsystems and…

无序系统与神经网络 · 物理学 2009-11-07 Qi Li , Yong Chen , Ying Hai Wang

We consider a coupled bulk-surface system of partial differential equations with nonlinear coupling modelling receptor-ligand dynamics. The model arises as a simplification of a mathematical model for the reaction between cell surface…

偏微分方程分析 · 数学 2016-11-08 Charles M. Elliott , Thomas Ranner , Chandrasekhar Venkataraman

The problem of minimizing a sum of local convex objective functions over a networked system captures many important applications and has received much attention in the distributed optimization field. Most of existing work focuses on…

最优化与控制 · 数学 2019-01-09 Fatemeh Mansoori , Ermin Wei