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Multiscale techniques have been widely shown to potentially overcome the limitation of homogenization schemes in representing the microscopic failure mechanisms in heterogeneous media as well as their influence on their structural response…

数值分析 · 数学 2021-08-10 Fabrizio Greco , Lorenzo Leonetti , Paolo Lonetti , Raimondo Luciano , Andrea Pranno

The k-Nearest Neighbors (kNN) classifier is a fundamental non-parametric machine learning algorithm. However, it is well known that it suffers from the curse of dimensionality, which is why in practice one often applies a kNN classifier on…

机器学习 · 计算机科学 2020-10-16 Luka Rimanic , Cedric Renggli , Bo Li , Ce Zhang

In this paper, we explore point-cloud based deep learning models to analyze numerical simulations arising from finite element analysis. The objective is to classify automatically the results of the simulations without tedious human…

数值分析 · 数学 2022-11-21 Meduri Venkata Shivaditya , Francesca Bugiotti , Frederic Magoules

In astronomy and cosmology, significant effort is devoted to characterizing and understanding spatial cross-correlations between points - e.g. galaxy positions, high energy neutrino arrival directions, X-ray and AGN sources, and continuous…

宇宙学与河外天体物理 · 物理学 2023-01-11 Arka Banerjee , Tom Abel

An architectural framework, based on collaborative filtering using K-nearest neighbor and cosine similarity, was developed and implemented to fit the requirements for the company DecorRaid. The aim of the paper is to test different…

信息检索 · 计算机科学 2024-02-12 Nanna Bach Munkholm , Robert Alphinas , Torben Tambo

Point cloud completion, as the upstream procedure of 3D recognition and segmentation, has become an essential part of many tasks such as navigation and scene understanding. While various point cloud completion models have demonstrated their…

计算机视觉与模式识别 · 计算机科学 2022-12-02 Shengshan Hu , Junwei Zhang , Wei Liu , Junhui Hou , Minghui Li , Leo Yu Zhang , Hai Jin , Lichao Sun

3D building models with facade details are playing an important role in many applications now. Classifying point clouds at facade-level is key to create such digital replicas of the real world. However, few studies have focused on such…

计算机视觉与模式识别 · 计算机科学 2024-02-12 Yue Tan , Olaf Wysocki , Ludwig Hoegner , Uwe Stilla

The main goal of this paper is to present the application of structural sums, mathematical objects originating from the computational materials science, in construction of a feature space vector of 2D random composites simulated by…

计算工程、金融与科学 · 计算机科学 2019-06-19 Wojciech Nawalaniec

Naive Bayes Nearest Neighbour (NBNN) is a simple and effective framework which addresses many of the pitfalls of K-Nearest Neighbour (KNN) classification. It has yielded competitive results on several computer vision benchmarks. Its central…

机器学习 · 计算机科学 2016-07-12 Daniel Jiwoong Im , Graham W. Taylor

The problem of finding K-nearest neighbors in the given dataset for a given query point has been worked upon since several years. In very high dimensional spaces the K-nearest neighbor search (KNNS) suffers in terms of complexity in…

机器学习 · 计算机科学 2021-02-15 Pramod Vadiraja , Christoph Peter Balada

Processing point cloud data is an important component of many real-world systems. As such, a wide variety of point-based approaches have been proposed, reporting steady benchmark improvements over time. We study the key ingredients of this…

计算机视觉与模式识别 · 计算机科学 2021-06-11 Ankit Goyal , Hei Law , Bowei Liu , Alejandro Newell , Jia Deng

Data poisoning aims to compromise a machine learning based software component by contaminating its training set to change its prediction results for test inputs. Existing methods for deciding data-poisoning robustness have either poor…

软件工程 · 计算机科学 2023-07-18 Yannan Li , Jingbo Wang , Chao Wang

Uncertainties in a structure is inevitable, which generally lead to variation in dynamic response predictions. For a complex structure, brute force Monte Carlo simulation for response variation analysis is infeasible since one single run…

机器学习 · 统计学 2020-05-08 Kai Zhou , Jiong Tang

Interpreting the performance results of models that attempt to realize user behavior in platforms that employ recommenders is a big challenge that researchers and practitioners continue to face. Although current evaluation tools possess the…

信息检索 · 计算机科学 2022-07-20 Wissam Al Jurdi , Jacques Bou Abdo , Jacques Demerjian , Abdallah Makhoul

Collaborative filtering (CF) is the most widely used and successful approach for personalized service recommendations. Among the collaborative recommendation approaches, neighborhood based approaches enjoy a huge amount of popularity, due…

信息检索 · 计算机科学 2015-10-05 Ranveer Singh , Bidyut Kr. Patra , Bibhas Adhikari

We propose simple yet effective improvements in point representations and local neighborhood graph construction within the general framework of graph neural networks (GNNs) for 3D point cloud processing. As a first contribution, we propose…

计算机视觉与模式识别 · 计算机科学 2021-03-30 Siddharth Srivastava , Gaurav Sharma

Advanced 3D metrology technologies such as Coordinate Measuring Machine (CMM) and laser 3D scanners have facilitated the collection of massive point cloud data, beneficial for process monitoring, control and optimization. However, due to…

计算机视觉与模式识别 · 计算机科学 2020-04-28 Hao Yan , Kamran Paynabar , Massimo Pacella

Nonparametric estimation of mutual information is used in a wide range of scientific problems to quantify dependence between variables. The k-nearest neighbor (knn) methods are consistent, and therefore expected to work well for large…

统计理论 · 数学 2018-04-18 Warren M. Lord , Jie Sun , Erik M. Bollt

Different spatial objects that vary in their characteristics, such as molecular biology and geography, are presented in spatial areas. Methods to organize, manage, and maintain those objects in a structured manner are required. Data mining…

数据库 · 计算机科学 2013-03-11 Dr. Mohammed Otair

The concept of k-core, which indicates the largest induced subgraph where each node has k or more neighbors, plays a significant role in measuring the cohesiveness and the engagement of a network, and it is exploited in diverse…

社会与信息网络 · 计算机科学 2023-01-03 Yuqian Lv , Bo Zhou , Jinhuan Wang , Qi Xuan