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When writing high-performance code for numerical computation in a scripting language like MATLAB, it is crucial to have the operations in a large for-loop vectorized. If not, the code becomes too slow to use, even for a moderately large…

数学软件 · 计算机科学 2024-04-26 Alexej Moskovka , Talal Rahman , Jan Valdman , Jon Eivind Vatne

Accurate prediction of damage and fracture evolution is critical for the safety design and preventive maintenance of engineering structures, however existing computational methods face significant limitations. On one hand, discrete damage…

计算物理 · 物理学 2025-07-01 Roshan Philip Saji , Panos Pantidis , Mostafa E. Mobasher

We present 3DGS-LM, a new method that accelerates the reconstruction of 3D Gaussian Splatting (3DGS) by replacing its ADAM optimizer with a tailored Levenberg-Marquardt (LM). Existing methods reduce the optimization time by decreasing the…

计算机视觉与模式识别 · 计算机科学 2025-08-22 Lukas Höllein , Aljaž Božič , Michael Zollhöfer , Matthias Nießner

Vision-Language Models (VLMs) achieve outstanding performance, yet their huge model size severely hinders deployment on edge devices with limited resources. As an efficient model compression technique, vector quantization (VQ) excels in…

计算机视觉与模式识别 · 计算机科学 2026-05-26 Zhong Wang , Zukang Xu , Xing Hu , Dawei Yang

Since numerical computing with MATLAB offers a wide variety of advantages, such as easier developing and debugging of computational codes rather than lower-level languages, the popularity of this tool is significantly increased in the past…

等离子体物理 · 物理学 2022-11-11 Shayan Dodge , Mojtaba Shafiee , Babak Shokri

Large-scale multi-modal deep learning models have revolutionized domains such as healthcare, highlighting the importance of computational power. However, in resource-constrained regions like Low and Middle-Income Countries (LMICs), limited…

Vectorization is a powerful optimization technique that significantly boosts the performance of high performance computing applications operating on large data arrays. Despite decades of research on auto-vectorization, compilers frequently…

软件工程 · 计算机科学 2024-06-10 Jubi Taneja , Avery Laird , Cong Yan , Madan Musuvathi , Shuvendu K. Lahiri

Embedding parameterized optimization problems as layers into machine learning architectures serves as a powerful inductive bias. Training such architectures with stochastic gradient descent requires care, as degenerate derivatives of the…

机器学习 · 计算机科学 2024-12-16 Anselm Paulus , Georg Martius , Vít Musil

The simulation of fracture using continuum ductile damage models attains a pathological discretization dependence caused by strain localization, after loss of ellipticity of the problem, in regions whose size is connected to the spatial…

计算工程、金融与科学 · 计算机科学 2021-04-21 M. Magri , S. Lucarini , G. Lemoine , L. Adam , J. Segurado

We introduce the Linearized Diffusion Map (LDM), a novel linear dimensionality reduction method constructed via a linear approximation of the diffusion-map kernel. LDM integrates the geometric intuition of diffusion-based nonlinear methods…

机器学习 · 计算机科学 2025-07-22 Julio Candanedo

The complexity of combustion simulations demands the latest high-performance computing tools to accelerate its time-to-solution results. A current trend on HPC systems is the utilization of CPUs with SIMD or vector extensions to exploit…

分布式、并行与集群计算 · 计算机科学 2022-10-24 Fabio Banchelli , Guillermo Oyarzun , Marta Garcia-Gasulla , Filippo Mantovani , Ambrus Both , Guillaume Houzeaux , Daniel Mira

We present efficient MATLAB implementations of the lowest-order primal hybrid finite element method (FEM) for linear second-order elliptic and parabolic problems with mixed boundary conditions in two spatial dimensions. We employ the…

数值分析 · 数学 2024-01-30 Harish Nagula Mallesham , Kamana Porwal , Jan Valdman , Sanjib Kumar Acharya

Rahman and Valdman (2013) introduced a vectorized way to assemble finite element stiffness and mass matrices in MATLAB. Local element matrices are computed all at once by array operations and stored in multi-dimentional arrays (matrices).…

数值分析 · 数学 2020-01-13 Leszek Marcinkowski , Jan Valdman

We introduce a new algorithm to solve a regularized spatial-spectral image estimation problem. Our approach is based on the linearized alternating directions method of multipliers (LADMM), which is a variation of the popular ADMM algorithm.…

信号处理 · 电气工程与系统科学 2025-02-25 Yunsong Liu , Debdut Mandal , Congyu Liao , Kawin Setsompop , Justin P. Haldar

Online segmentation of laser-induced damage on large-aperture optics in high-power laser facilities is challenged by complicated damage morphology, uneven illumination and stray light interference. Fully supervised semantic segmentation…

计算机视觉与模式识别 · 计算机科学 2023-07-19 Yueyue Han , Yingyan Huang , Hangcheng Dong , Fengdong Chen , Fa Zeng , Zhitao Peng , Qihua Zhu , Guodong Liu

Ordinary state-based peridynamic (OSB-PD) models have an unparalleled capability to simulate crack propagation phenomena in solids with arbitrary Poisson's ratio. However, their non-locality also leads to prohibitively high computational…

数值分析 · 数学 2023-09-21 Tao Ni , Mirco Zaccariotto , Qizhi Zhu , Ugo Galvanetto

Gradient-based attacks are important methods for evaluating model robustness. However, since the proposal of APGD, it has been difficult for such methods to achieve significant breakthroughs. To achieve such an effect, we first analyze the…

计算机视觉与模式识别 · 计算机科学 2026-05-21 Xinlei Liu , Tao Hu , Jichao Xie , Peng Yi , Hailong Ma , Baolin Li

Efficient Matlab codes in 2D and 3D have been proposed recently to assemble finite element matrices. In this paper we present simple, compact and efficient vectorized algorithms, which are variants of these codes, in arbitrary dimension,…

数学软件 · 计算机科学 2015-06-22 François Cuvelier , Caroline Japhet , Gilles Scarella

In this paper, a new progressive mesh algorithm is introduced in order to perform fast physical simulations by the use of a lattice Boltzmann method (LBM) on a single-node multi-GPU architecture. This algorithm is able to mesh automatically…

分布式、并行与集群计算 · 计算机科学 2015-10-14 Julien Duchateau , François Rousselle , Nicolas Maquignon , Gilles Roussel , Christophe Renaud

We propose an effective and flexible way to implement 2D and 3D elastoplastic problems in MATLAB using fully vectorized codes. Our technique is applied to a broad class of the problems including perfect plasticity or plasticity with…

数值分析 · 数学 2018-09-07 Martin Čermák , Stanislav Sysala , Jan Valdman
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