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Training stability is typically regarded as a prerequisite for reliable optimization in large language models. In this work, we analyze how stabilizing training dynamics affects the induced generation distribution. We show that under…

人工智能 · 计算机科学 2026-02-10 Xianzhe Meng , Qiangsheng Zeng , Ling Luo , Qinghan Yang , Jiarui Hao , Wenbo Wu , Qinyu Wang , Rui Yin , Lin Qi , Renzhi Lu

In this paper, we study pinning control problem of coupled dynamical systems with stochastically switching couplings and stochastically selected controller-node set. Here, the coupling matrices and the controller-node sets change with time,…

系统与控制 · 计算机科学 2014-04-29 Yujuan Han , Wenlian Lu , Zhe Li , Tianping Chen

With a simple model, we study the evolution of random networks under attack and reconstruction. We introduce a new quality, invulnerability I(s), to describe the stability of the system. We find that the network can evolve to a stationary…

无序系统与神经网络 · 物理学 2007-05-23 L. P. Chi , C. B. Yang , X. Cai

We model non-stationary volume-price distributions with a log-normal distribution and collect the time series of its two parameters. The time series of the two parameters are shown to be stationary and Markov-like and consequently can be…

统计金融 · 定量金融 2017-05-04 Joana Estevens , Paulo Rocha , Joao Boto , Pedro Lind

We study the pointwise stabilizability of a discrete-time, time-homogeneous, and stationary Markovian jump linear system. By using measure theory, ergodic theory and a splitting theorem of state space we show in a relatively simple way that…

概率论 · 数学 2013-09-02 Xiongping Dai , Yu Huang , Mingqing Xiao

Components of complex systems are often classified according to the way they interact with each other. In graph theory such groups are known as clusters or communities. Many different techniques have been recently proposed to detect them,…

物理与社会 · 物理学 2010-04-30 Muhittin Mungan , Jose J. Ramasco

We study conditional independence relationships for random networks and their interplay with exchangeability. We show that, for finitely exchangeable network models, the empirical subgraph densities are maximum likelihood estimates of their…

统计理论 · 数学 2017-11-22 Steffen Lauritzen , Alessandro Rinaldo , Kayvan Sadeghi

Impulsive systems are a very flexible class of systems that can be used to represent switched and sampled-data systems. We propose to extend here the previously obtained results on deterministic impulsive systems to the stochastic setting.…

最优化与控制 · 数学 2016-08-02 Corentin Briat

Previous studies have inferred robust stability of reaction networks by utilizing linear programs or iterative algorithms. Such algorithms become tedious or computationally infeasible for large networks. In addition, they operate like…

最优化与控制 · 数学 2023-02-13 M. Ali Al-Radhawi

In this paper, we consider the stability analysis of large-scale distributed networked control systems with random communication delays between linearly interconnected subsystems. The stability analysis is performed in the Markov jump…

系统与控制 · 计算机科学 2015-11-13 Kooktae Lee , Raktim Bhattacharya

This paper develops a quantitative framework for analyzing the mean-square exponential stabilization of stochastic linear systems with multiplicative noise, focusing specifically on the optimal stabilizing rate, which characterizes the…

最优化与控制 · 数学 2025-12-15 Hui Jia , Yuan-Hua Ni , Guangchen Wang

This paper addresses the stability conditions of the sampled-data teleoperation systems consisting continuous time master, slave, operator, and environment with discrete time controllers over general communication networks. The output…

系统与控制 · 电气工程与系统科学 2020-08-18 Amir A Ghavifekr , Amir R Ghiasi , Mohammad A Badamchizadeh , Farzad Hashemzadeh , Paolo Fiorini

We study the dynamics of a quantum system having Hilbert space of finite dimension $d_{\mathrm{H}}$. Instabilities are possible provided that the master equation governing the system's dynamics contain nonlinear terms. Here we consider the…

量子物理 · 物理学 2021-06-02 Eyal Buks , Dvir Schwartz

Undirected graphical models known as Markov networks are popular for a wide variety of applications ranging from statistical physics to computational biology. Traditionally, learning of the network structure has been done under the…

机器学习 · 统计学 2025-06-26 Johan Pensar , Henrik Nyman , Juha Niiranen , Jukka Corander

We develop a novel class of MCMC algorithms based on a stochastized Nesterov scheme. With an appropriate addition of noise, the result is a time-inhomogeneous underdamped Langevin equation, which we prove emits a specified target…

计算工程、金融与科学 · 计算机科学 2023-11-29 Duy H. Thai , Alexander L. Young , David B. Dunson

We introduce and study a new model that we call the {\em matching model}. Items arrive one by one in a buffer and depart from it as soon as possible but by pairs. The items of a departing pair are said to be {\em matched}. There is a finite…

概率论 · 数学 2016-06-03 Jean Mairesse , Pascal Moyal

A Markov tree is a probabilistic graphical model for a random vector indexed by the nodes of an undirected tree encoding conditional independence relations between variables. One possible limit distribution of partial maxima of samples from…

统计方法学 · 统计学 2021-01-19 Stefka Asenova , Gildas Mazo , Johan Segers

We continue development of the theory of Markov systems initiated in \cite{Wer1}. In this paper, we introduce fundamental Markov systems associated with random dynamical systems and show that the proof of the uniqueness and empiricalness of…

概率论 · 数学 2009-02-09 Ivan Werner

Stability of graph neural networks (GNNs) characterizes how GNNs react to graph perturbations and provides guarantees for architecture performance in noisy scenarios. This paper develops a self-regularized graph neural network (SR-GNN)…

信号处理 · 电气工程与系统科学 2022-11-15 Zhan Gao , Elvin Isufi

Existing studies on the degree correlation of evolving networks typically rely on differential equations and statistical analysis, resulting in only approximate solutions due to inherent randomness. To address this limitation, we propose an…

统计计算 · 统计学 2024-06-13 Yue Xiao , Xiaojun Zhang