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We present a numerical method for computing optimal transition pathways and transition rates in systems of stochastic differential equations (SDEs). In particular, we compute the most probable transition path of stochastic equations by…

动力系统 · 数学 2015-06-11 Brandon S. Lindley , Ira B. Schwartz

Jump Markov linear systems (JMLS) are a useful class which can be used to model processes which exhibit random changes in behavior during operation. This paper presents a numerically stable method for learning the parameters of jump Markov…

应用统计 · 统计学 2020-04-21 Mark P. Balenzuela , Adrian G. Wills , Christopher Renton , Brett Ninness

We develop and analyze a highly efficient, second-order time-marching scheme for infinite-dimensional nonlinear geophysical fluid models, designed to accurately approximate invariant measures-that is, the stationary statistical properties…

数值分析 · 数学 2025-10-08 Daozhi Han , Xiaoming Wang

This paper proposes a joint channel and data estimation (JCDE) algorithm for uplink multiuser extremely large-scale multiple-input-multiple-output (XL-MIMO) systems. The initial channel estimation is formulated as a sparse reconstruction…

信号处理 · 电气工程与系统科学 2025-08-20 Kabuto Arai , Koji Ishibashi , Hiroki Iimori , Paulo Valente Klaine , Szabolcs Malomsoky

This paper presents a novel extended dynamic programming approach for energy minimization (EDP) to solve the correspondence problem for stereo and motion. A significant speedup is achieved using a recursive minimum search strategy (RMS).…

计算机视觉与模式识别 · 计算机科学 2014-10-30 Mikhail G. Mozerov

We develop an accelerated gradient descent algorithm on the Grassmann manifold to compute the subspace spanned by a number of leading eigenvectors of a symmetric positive semi-definite matrix. This has a constant cost per iteration and a…

最优化与控制 · 数学 2024-06-27 Foivos Alimisis , Simon Vary , Bart Vandereycken

Extreme Learning Machine (ELM) is an efficient and effective least-square-based learning algorithm for classification, regression problems based on single hidden layer feed-forward neural network (SLFN). It has been shown in the literature…

机器学习 · 计算机科学 2020-11-05 Ramesh Ragala , Bharadwaja kumar

In this paper we study jump-diffusion stochastic differential equations (SDEs) with a discontinuous drift coefficient and a possibly degenerate diffusion coefficient. Such SDEs appear in applications such as optimal control problems in…

数值分析 · 数学 2021-01-15 Paweł Przybyłowicz , Michaela Szölgyenyi

Two-dimensional materials-based field-effect transistors (2DM-FETs) exhibit both ambipolar and unipolar transport types. To physically and compactly cover both cases, we put forward a quasi-Fermi-level phase space (QFLPS) approach to model…

Subspace minimization conjugate gradient (SMCG) methods have become a class of quite efficient iterative methods for unconstrained optimization and have attracted extensive attention recently. Usually, the search directions of SMCG methods…

最优化与控制 · 数学 2023-03-24 Zexian Liu , Yan Ni , Hongwei Liu , Wumei Sun

Real-world control applications often involve complex dynamics subject to abrupt changes or variations. Markov jump linear systems (MJS) provide a rich framework for modeling such dynamics. Despite an extensive history, theoretical…

最优化与控制 · 数学 2021-05-27 Zhe Du , Yahya Sattar , Davoud Ataee Tarzanagh , Laura Balzano , Samet Oymak , Necmiye Ozay

We present a computationally efficient approach to solve the time-dependent Kohn-Sham equations in real-time using higher-order finite-element spatial discretization, applicable to both pseudopotential and all-electron calculations. To this…

计算物理 · 物理学 2019-10-02 Bikash Kanungo , Vikram Gavini

Merging mobile edge computing (MEC) functionality with the dense deployment of base stations (BSs) provides enormous benefits such as a real proximity, low latency access to computing resources. However, the envisioned integration creates…

信息论 · 计算机科学 2017-09-11 Yuxuan Sun , Sheng Zhou , Jie Xu

This paper is concerned with determining the shortest path for a pursuer aiming to intercept a moving target travelling at a constant speed. To address this challenge, we introduce an efficient mathematical model outlined as an optimal…

最优化与控制 · 数学 2025-01-28 M. Akter , M. M. Rizvi , M. Forkan

We study dual-unmanned aerial vehicle (UAV) jamming-aided secure communication networks, in which one UAV delivers confidential data to multiple ground users (GUs), while a cooperative UAV provides protective interference against a ground…

系统与控制 · 电气工程与系统科学 2026-01-29 Xinran Wang , Peng Wu , Xiaopeng Yuan , Yulin Hu , Anke Schmeink

We present an algorithm for safe robot navigation in complex dynamic environments using a variant of model predictive equilibrium point control. We use an optimization formulation to navigate robots gracefully in dynamic environments by…

机器人学 · 计算机科学 2023-03-20 Senthil Hariharan Arul , Jong Jin Park , Dinesh Manocha

High-dimensional partial differential equations (PDE) appear in a number of models from the financial industry, such as in derivative pricing models, credit valuation adjustment (CVA) models, or portfolio optimization models. The PDEs in…

数值分析 · 数学 2020-07-15 Christian Beck , Weinan E , Arnulf Jentzen

We consider a class of general SDEs with a jump integral term driven by a time-inhomogeneous Poisson random measure. We propose a two-parameters Euler-type scheme for this SDE class and prove an optimal rate for the strong convergence with…

概率论 · 数学 2025-08-07 Mireille Bossy , Paul Maurer

The fast marching method is well-known for its worst-case optimal computational complexity in solving the Eikonal equation, and has been employed in numerous scientific and engineering fields. However, it has barely benefited from…

计算物理 · 物理学 2018-11-02 Jianming Yang

Extreme learning machine (ELM) is a methodology for solving partial differential equations (PDEs) using a single hidden layer feed-forward neural network. It presets the weight/bias coefficients in the hidden layer with random values, which…

数值分析 · 数学 2025-04-30 Chang-Ock Lee , Youngkyu Lee , Byungeun Ryoo