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In our work, we consider the classical density-based approach to topology optimization. We propose the modification of the discretized cost/objective functional using a posteriori error estimator for the finite element method. It can be…

数值分析 · 数学 2018-02-28 Vladislav Pimanov , Ivan Oseledets

We present novel roulette schemes for rare-event sampling that are both structure-preserving and unbiased. The boundaries where Monte Carlo markers are split and deleted are placed automatically and adapted during runtime. Extending…

计算物理 · 物理学 2021-07-07 C. U. Schuster , T. Johnson , G. Papp , R. Bilato , S. Sipilä , J. Varje , M. Hasenöhrl

Using finite difference method, time evolution of a typical metal molecule metal system is studied by introducing a new method to solve general related Volterra integro differential equation (IDE). Discretization in time domain is applied…

介观与纳米尺度物理 · 物理学 2016-03-15 Mohammad Nakhaee , S Ahmad Ketabi , M Taher Pakbaz , M Ali M Keshtan , Elham Rahmati , Zahra Abdous

Online system identification algorithms are widely used for monitoring, diagnostics and control by continuously adapting to time-varying dynamics. Typically, these algorithms consider a model structure that lacks parsimony and offers…

系统与控制 · 电气工程与系统科学 2025-04-28 Koen Classens , Rodrigo A. González , Tom Oomen

Structural crack detection is a critical task for public safety as it helps in preventing potential structural failures that could endanger lives. Manual detection by inexperienced personnel can be slow, inconsistent, and prone to human…

计算机视觉与模式识别 · 计算机科学 2025-07-04 Subhasis Dasgupta , Jaydip Sen , Tuhina Halder

A more descriptive but too long title would be : Constructing fly-automata to check properties of graphs of bounded tree-width expressed by monadic second-order formulas written with edge quantifications. Such properties are called MSO2 in…

计算机科学中的逻辑 · 计算机科学 2015-12-23 Bruno Courcelle

Integro-differential-algebraic equations (IDAE)s are widely used in applications of engineering and analysis. When there are hidden constraints in an IDAE, structural analysis is necessary. But if derivatives of dependent variables appear…

动力系统 · 数学 2023-08-01 Wenqiang Yang , Wenyuan Wu , Greg Reid

We introduce Symbolic Alternating Finite Automata (s-AFA) as an expressive, succinct, and decidable model for describing sets of finite sequences over arbitrary alphabets. Boolean operations over s-AFAs have linear complexity, which is in…

形式语言与自动机理论 · 计算机科学 2016-10-07 Loris D'Antoni , Zachary Kincaid , Fang Wang

Structural analyses are an integral part of computational research on nucleation and supercooled water, whose accuracy and efficiency can impact the validity and feasibility of such studies. The underlying molecular mechanisms of these…

计算物理 · 物理学 2023-12-19 Rohit Goswami , Amrita Goswami , Jayant K. Singh

The aim of this paper is to develop a multiscale hierarchical hybrid model based on finite element analysis and neural network computation to link mesoscopic scale (trabecular network level) and macroscopic (whole bone level) to simulate…

医学物理 · 物理学 2011-07-20 Ridha Hambli , Abdelwahed Barkaoui

We propose an efficient algorithm for solving orthogonal canonical correlation analysis (OCCA) in the form of trace-fractional structure and orthogonal linear projections. Even though orthogonality has been widely used and proved to be a…

机器学习 · 计算机科学 2019-09-26 Leihong Zhang , Li Wang , Zhaojun Bai , Ren-cang Li

In this article, we present a simple technique for boosting the order of accuracy of finite difference schemes for time dependent partial differential equations by optimally selecting the time step used to advance the numerical solution and…

数值分析 · 数学 2009-05-26 Kevin T. Chu

We propose an automated method for computing inductive invariants applied to check deadlock-freedom for parametric component-based systems. The method generalizes the approach for computing structural trap invariants from bounded to…

计算机科学中的逻辑 · 计算机科学 2019-02-18 Marius Bozga , Radu Iosif , Joseph Sifakis

We propose an efficient fine-tuning method for time series foundation models, termed TRACE: Time Series Parameter Efficient Fine-tuning. While pretrained time series foundation models are gaining popularity, they face the following…

机器学习 · 计算机科学 2025-11-24 Yuze Li , Wei Zhu

Optimal inverse design, including topology optimization and evaluation of fundamental bounds on performance, which was introduced in Part~1, is applied to various antenna design problems. A memetic scheme for topology optimization combines…

最优化与控制 · 数学 2023-10-10 Miloslav Capek , Lukas Jelinek , Petr Kadlec , Mats Gustafsson

This study investigates the impact of finite element selection on structural topology optimization using the SIMP (Solid Isotropic Material with Penalization) method. Specifically, it compares linear (P1) and quadratic (P2) triangular…

数值分析 · 数学 2026-05-20 Jyotiranjan nayak , Shafeequdheen P , Vijayakrishna Rowthu

In this review we discuss the progress of the past decade in testing for a possible temporal variation of the fine structure constant $\alpha$. Advances in atomic sample preparation, laser spectroscopy and optical frequency measurements led…

In this paper, we propose to enhance the performance of the sum-product algorithm (SPA) by interleaving SPA iterations with a random local graph update rule. This rule is known as edge local complementation (ELC), and has the effect of…

Predictor-based Neural Architecture Search (NAS) employs an architecture performance predictor to improve the sample efficiency. However, predictor-based NAS suffers from the severe ``cold-start'' problem, since a large amount of…

机器学习 · 计算机科学 2023-02-03 Junbo Zhao , Xuefei Ning , Enshu Liu , Binxin Ru , Zixuan Zhou , Tianchen Zhao , Chen Chen , Jiajin Zhang , Qingmin Liao , Yu Wang

The status of Monte Carlo system for the simulation of tau-lepton production and decay in high-energy accelerator experiments is reviewed. Since previous tau-lepton conference in 2008 some practical modifications have been introduced: (i)…

高能物理 - 唯象学 · 物理学 2015-03-17 Zbigniew Was