中文
相关论文

相关论文: Damage identification on spatial Timoshenko arches…

200 篇论文

Spitzoid lesions broadly categorized into Spitz Nevus (SN), Atypical Spitz Tumors (AST), and Spitz Melanomas (SM). The accurate diagnosis of these lesions is one of the most challenges for dermapathologists; this is due to the high…

图像与视频处理 · 电气工程与系统科学 2020-06-04 Abir Belaala , Labib Sadek , Noureddine Zerhouni , Christine Devalland

We introduce a novel numerical framework for the exploration of Blaschke--Santal\'o diagrams, which are efficient tools characterizing the possible inequalities relating some given shape functionals. We introduce a parametrization of convex…

最优化与控制 · 数学 2026-05-15 Eloi Martinet , Ilias Ftouhi

A computational method is presented which is capable to obtain low lying energy structures of topological amorphous systems. The method merges a differential mutation genetic algorithm with simulated annealing. This is done by incorporating…

计算物理 · 物理学 2017-10-11 Katja Biswas

We develop a rigorous mathematical framework for the weak formulation of cracked beams and shallow arches problems. First, we discuss the crack modeling by means of massless rotational springs. Then we introduce Hilbert spaces, which are…

偏微分方程分析 · 数学 2022-07-13 Semion Gutman , Junhong Ha , Sudeok Shon

Automated segmentation of medical imaging is of broad interest to clinicians and machine learning researchers alike. The goal of segmentation is to increase efficiency and simplicity of visualization and quantification of regions of…

图像与视频处理 · 电气工程与系统科学 2020-06-04 Shruti Jadon , Owen P. Leary , Ian Pan , Tyler J. Harder , David W. Wright , Lisa H. Merck , Derek L. Merck

We present FitSKIRT, a method to efficiently fit radiative transfer models to UV/optical images of dusty galaxies. These images have the advantage that they have better spatial resolution compared to FIR/submm data. FitSKIRT uses the GAlib…

宇宙学与河外天体物理 · 物理学 2015-06-12 Gert De Geyter , Maarten Baes , Jacopo Fritz , Peter Camps

The modeling of damage processes in materials constitutes an ill-posed mathematical problem which manifests in mesh-dependent finite element results. The loss of ellipticity of the discrete system of equations is counteracted by…

计算工程、金融与科学 · 计算机科学 2021-02-18 Philipp Junker , Johannes Riesselmann , Daniel Balzani

In the present work, the evolution of damage in periodic composite materials is investigated through a novel finite element-based multiscale computational approach. The methodology is developed by means of the original combination of…

数值分析 · 数学 2019-08-09 Francesca Fantoni , Andrea Bacigalupo , Marco Paggi , Josè Reinoso

Topological alignments and snakes are used in image processing, particularly in locating object boundaries. Both of them have their own advantages and limitations. To improve the overall image boundary detection system, we focused on…

计算机视觉与模式识别 · 计算机科学 2011-06-03 Ashraf A. Aly , Safaai Bin Deris , Nazar Zaki

A technique to forecast spatiotemporal time series is presented. it uses a Proper Ortogonal or Karhunen-Lo\`{e}ve Decomposition to encode large spatiotemporal data sets in a few time-series, and Genetic Algorithms to efficiently extract…

混沌动力学 · 物理学 2009-10-31 Cristobal Lopez , Alberto Alvarez , Emilio Hernandez-Garcia

This paper presents the coupling of a building thermal simulation code with genetic algorithms (GAs). GAs are randomized search algorithms that are based on the mechanisms of natural selection and genetics. We show that this coupling allows…

神经与进化计算 · 计算机科学 2012-12-24 Alfred Jean Philippe Lauret , Harry Boyer , Carine Riviere , Alain Bastide

We present a scalable and efficient framework for the inference of spatially-varying parameters of continuum materials from image observations of their deformations. Our goal is the nondestructive identification of arbitrary damage,…

数值分析 · 数学 2024-08-21 Joseph Kirchhoff , Dingcheng Luo , Thomas O'Leary-Roseberry , Omar Ghattas

In Computer Vision, edge detection is one of the favored approaches for feature and object detection in images since it provides information about their objects boundaries. Other region-based approaches use probabilistic analysis such as…

计算机视觉与模式识别 · 计算机科学 2019-08-20 Dominique Beaini , Sofiane Achiche , Fabrice Nonez , Maxime Raison

A three-way coupled thermo-mechanical fracture model is presented to predict the damage of brittle ceramics, in particular {\alpha}-SiC, over a wide range of temperatures (20-1400 C). Predicting damage over such a range of temperatures is…

材料科学 · 物理学 2026-03-06 Jason Sun , Yu Chen , Joseph J. Marziale , Eric A. Walker , David Salac , James Chen

In this work, we propose an easy-to-implement fixed-point algorithm for reconstructing a space-time dependent source in a subdiffusion model from lateral boundary measurements. The numerical scheme combines a Galerkin finite element method…

数值分析 · 数学 2026-05-08 Siyu Cen , Bangti Jin , Yavar Kian , Zhi Zhou

Imaging Cherenkov detectors are largely used for particle identification (PID) in nuclear and particle physics experiments, where developing fast reconstruction algorithms is becoming of paramount importance to allow for near real time…

数据分析、统计与概率 · 物理学 2020-05-21 Cristiano Fanelli , Jary Pomponi

Conventional damage localization algorithms used in ultrasonic guided wave-based structural health monitoring (GW-SHM) rely on physics-defined features of GW signals. In addition to requiring domain knowledge of the interaction of various…

信号处理 · 电气工程与系统科学 2022-04-06 Shruti Sawant , Sheetal Patil , Jeslin Thalapil , Sauvik Banerjee , Siddharth Tallur

We develop a mathematical and numerical framework to solve state estimation problems for applications that present variations in the shape of the spatial domain. This situation arises typically in a biomedical context where inverse problems…

数值分析 · 数学 2023-03-14 Felipe Galarce , Damiano Lombardi , Olga Mula

We study the spatio-temporal prediction problem and introduce a novel point-process-based prediction algorithm. Spatio-temporal prediction is extensively studied in Machine Learning literature due to its critical real-life applications such…

机器学习 · 统计学 2021-03-17 Oguzhan Karaahmetoglu , Suleyman S. Kozat

Fractures are normally present in the underground and are, for some physical processes, of paramount importance. Their accurate description is fundamental to obtain reliable numerical outcomes useful, e.g., for energy management. Depending…

数值分析 · 数学 2021-03-03 Alessio Fumagalli , Francesco Saverio Patacchini