中文
相关论文

相关论文: Landmark MDS Revisited for Sensor Network Localiza…

200 篇论文

Sensor nodes are low cost, low power devices that are used to collect physical data and monitor environmental conditions from remote locations. Wireless Sensor Networks(WSN) are collection of sensor nodes, coordinating among themselves to…

网络与互联网体系结构 · 计算机科学 2013-03-18 Deepali Virmani , Satbir Jain

We introduce L-hydra (landmarked hyperbolic distance recovery and approximation), a method for embedding network- or distance-based data into hyperbolic space, which requires only the distance measurements to a few 'landmark nodes'. This…

统计计算 · 统计学 2022-07-15 Martin Keller-Ressel , Stephanie Nargang

Recognizing an activity with a single reference sample using metric learning approaches is a promising research field. The majority of few-shot methods focus on object recognition or face-identification. We propose a metric learning…

计算机视觉与模式识别 · 计算机科学 2020-10-20 Raphael Memmesheimer , Nick Theisen , Dietrich Paulus

Classical multidimensional scaling (MDS) is a method for visualizing high-dimensional point clouds by mapping to low-dimensional Euclidean space. This mapping is defined in terms of eigenfunctions of a matrix of interpoint dissimilarities.…

应用统计 · 统计学 2008-11-11 Persi Diaconis , Sharad Goel , Susan Holmes

Many modern wireless devices with accurate positioning needs also have access to vision sensors, such as a camera, radar, and Light Detection and Ranging (LiDAR). In scenarios where wireless-based positioning is either inaccurate or…

计算机视觉与模式识别 · 计算机科学 2025-02-03 Haozhou Hu , Harpreet S. Dhillon , R. Michael Buehrer

The accuracy of traditional localization methods significantly degrades when the direct path between the wireless transmitter and the target is blocked or non-penetrable. This paper proposes N2LoS, a novel approach for precise…

信号处理 · 电气工程与系统科学 2025-05-14 Zhenguo Shi , Yihe Yan , Yanxiang Wang , Wen Hu , Chun Tung Chou

Data-target association is an important step in multi-target localization for the intelligent operation of un- manned systems in numerous applications such as search and rescue, traffic management and surveillance. The objective of this…

系统与控制 · 计算机科学 2017-05-31 Samuel Silva , Rengan Suresh , Feng Tao , Johnathan Votion , Yongcan Cao

This study considers the joint location and velocity estimation of UE and scatterers in a three-dimensional mmWave CRAN architecture. Several existing works have achieved satisfactory results with neural networks (NNs) for localization.…

信息论 · 计算机科学 2021-03-23 Jie Yang , Shi Jin , Chao-Kai Wen , Jiajia Guo , Michail Matthaiou , Bo Gao

We present the novel approach for stance detection across domains and targets, Metric Learning-Based Few-Shot Learning for Cross-Target and Cross-Domain Stance Detection (MLSD). MLSD utilizes metric learning with triplet loss to capture…

计算与语言 · 计算机科学 2025-09-05 Parush Gera , Tempestt Neal

In the study of high-dimensional data, it is often assumed that the data set possesses an underlying lower-dimensional structure. A practical model for this structure is an embedded compact manifold with boundary. Since the underlying…

机器学习 · 统计学 2025-08-22 Pei-Cheng Kuo , Nan Wu

We consider the robust multi-dimensional scaling (RMDS) problem in this paper. The goal is to localize point locations from pairwise distances that may be corrupted by outliers. Inspired by classic MDS theories, and nonconvex works for the…

机器学习 · 统计学 2025-01-07 Tong Deng , Tianming Wang

We present Low Distortion Local Eigenmaps (LDLE), a manifold learning technique which constructs a set of low distortion local views of a dataset in lower dimension and registers them to obtain a global embedding. The local views are…

谱理论 · 数学 2021-12-21 Dhruv Kohli , Alexander Cloninger , Gal Mishne

Visualizing high-dimensional data is essential for understanding biomedical data and deep learning models. Neighbor embedding methods, such as t-SNE and UMAP, are widely used but can introduce misleading visual artifacts. We find that the…

统计方法学 · 统计学 2025-04-02 Zhexuan Liu , Rong Ma , Yiqiao Zhong

We propose a class of convex relaxations to solve the sensor network localization problem, based on a maximum likelihood (ML) formulation. This class, as well as the tightness of the relaxations, depends on the noise probability density…

信息论 · 计算机科学 2017-09-18 Andrea Simonetto , Geert Leus

LiDAR-based localization and mapping is one of the core components in many modern robotic systems due to the direct integration of range and geometry, allowing for precise motion estimation and generation of high quality maps in real-time.…

机器人学 · 计算机科学 2022-08-02 Julian Nubert , Etienne Walther , Shehryar Khattak , Marco Hutter

Progressive dimensionality reduction algorithms allow for visually investigating intermediate results, especially for large data sets. While different algorithms exist that progressively increase the number of data points, we propose an…

图形学 · 计算机科学 2024-10-28 Marina Evers , David Hägele , Sören Döring , Daniel Weiskopf

Locality-Sensitive Hashing (LSH) is one of the most popular methods for $c$-Approximate Nearest Neighbor Search ($c$-ANNS) in high-dimensional spaces. In this paper, we propose a novel LSH scheme based on the Longest Circular Co-Substring…

数据库 · 计算机科学 2020-04-14 Yifan Lei , Qiang Huang , Mohan Kankanhalli , Anthony K. H. Tung

In this paper, we introduce a Fast and Scalable Semi-supervised Multi-view Subspace Clustering (FSSMSC) method, a novel solution to the high computational complexity commonly found in existing approaches. FSSMSC features linear…

机器学习 · 计算机科学 2024-08-13 Huaming Ling , Chenglong Bao , Jiebo Song , Zuoqiang Shi

We propose a minimum distance estimation method for robust regression in sparse high-dimensional settings. The traditional likelihood-based estimators lack resilience against outliers, a critical issue when dealing with high-dimensional…

统计方法学 · 统计学 2013-07-12 Aurélie C. Lozano , Nicolai Meinshausen

The concept of localization in LLMs is often mentioned in prior work; however, methods for localization have never been systematically and directly evaluated. We propose two complementary benchmarks that evaluate the ability of localization…

计算与语言 · 计算机科学 2024-04-03 Ting-Yun Chang , Jesse Thomason , Robin Jia