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相关论文: A new approach to gross error detection for GPS ne…

200 篇论文

Deep Neural Networks (DNNs) are a promising tool for Global Navigation Satellite System (GNSS) positioning in the presence of multipath and non-line-of-sight errors, owing to their ability to model complex errors using data. However,…

机器人学 · 计算机科学 2022-06-23 Ashwin V. Kanhere , Shubh Gupta , Akshay Shetty , Grace Gao

This article provides an original understanding of the behavior of a class of graph-oriented semi-supervised learning algorithms in the limit of large and numerous data. It is demonstrated that the intuition at the root of these methods…

机器学习 · 计算机科学 2017-11-10 Xiaoyi Mai , Romain Couillet

We consider estimation of undirected Gaussian graphical models and inverse covariances in high-dimensional scenarios by penalizing the corresponding precision matrix. While single $L_1$ (Graphical Lasso) and $L_2$ (Graphical Ridge)…

统计方法学 · 统计学 2021-01-07 Solt Kovács , Tobias Ruckstuhl , Helena Obrist , Peter Bühlmann

We propose a new method for inferring roads from GPS trajectories to map construction sites. This task presents a unique challenge due to the erratic and non-standard movement patterns of construction machinery, which significantly diverge…

人工智能 · 计算机科学 2025-07-04 Katarzyna Michałowska , Helga Margrete Bodahl Holmestad , Signe Riemer-Sørensen

We study the matrix completion problem when the observation pattern is deterministic and possibly non-uniform. We propose a simple and efficient debiased projection scheme for recovery from noisy observations and analyze the error under a…

信息论 · 计算机科学 2019-10-31 Simon Foucart , Deanna Needell , Reese Pathak , Yaniv Plan , Mary Wootters

This letter presents a novel detection strategy for Spatially-Multiplexed Generalized Spatial Modulation systems. It is a multi-stage detection that produces a list of candidates of the transmitted signal vector, sorted according to the…

信息论 · 计算机科学 2015-04-21 João Cal-Braz , Raimundo Sampaio-Neto

The mass matrix for Gauss-Lobatto grid points is usually approximated by Gauss-Lobatto quadrature because this leads to a diagonal matrix that is easy to invert. The exact mass matrix and its inverse are full. We show that the exact mass…

数值分析 · 数学 2015-05-20 Saul A. Teukolsky

Biological networks often change under different environmental and genetic conditions. Understanding how these networks change becomes an important problem in biological studies. In this paper, we model the network change as the difference…

统计方法学 · 统计学 2017-05-30 Huili Yuan , Ruibin Xi , Chong Chen , Minghua Deng

Accurate localization is crucial for various applications, including autonomous vehicles and next-generation wireless networks. However, the reliability and precision of Global Navigation Satellite Systems (GNSS), such as the Global…

信号处理 · 电气工程与系统科学 2024-08-20 Gouranga Charan , Tawfik Osman , Ahmed Alkhateeb

Graph Convolutional Networks (GCNs) have received increasing attention in the machine learning community for effectively leveraging both the content features of nodes and the linkage patterns across graphs in various applications. As…

机器学习 · 计算机科学 2021-01-01 Donghan Yu , Ruohong Zhang , Zhengbao Jiang , Yuexin Wu , Yiming Yang

It is presented a simple algorithm for power network state estimation and correction (fault detection) employing standard methodology.

信号处理 · 电气工程与系统科学 2017-10-10 P. Barcia , P. Castelo Ferreira , P. Freitas

The great success neural networks have achieved is inseparable from the application of gradient-descent (GD) algorithms. Based on GD, many variant algorithms have emerged to improve the GD optimization process. The gradient for…

机器学习 · 计算机科学 2023-05-29 Zefan Li , Bingbing Ni , Teng Li , WenJun Zhang , Wen Gao

We propose a network structure discovery model for continuous observations that generalizes linear causal models by incorporating a Gaussian process (GP) prior on a network-independent component, and random sparsity and weight matrices as…

机器学习 · 计算机科学 2017-03-01 Amir Dezfouli , Edwin V. Bonilla , Richard Nock

Generalized linear models (GLMs) arise in high-dimensional machine learning, statistics, communications and signal processing. In this paper we analyze GLMs when the data matrix is random, as relevant in problems such as compressed sensing,…

信息论 · 计算机科学 2019-04-01 Jean Barbier , Florent Krzakala , Nicolas Macris , Léo Miolane , Lenka Zdeborová

All discretized numerical models contain modelling errors - this reality is amplified when reduced-order models are used. The ability to accurately approximate modelling errors informs statistics on model confidence and improves…

计算物理 · 物理学 2021-03-17 Danny Smyl , Tyler N. Tallman , Jonathan A. Black , Andreas Hauptmann , Dong Liu

We introduce a general framework for testing goodness-of-fit for Gaussian graphical models in both the low- and high-dimensional settings. This framework is based on a novel algorithm for generating exchangeable copies by conditioning on…

统计方法学 · 统计学 2025-01-07 Xiaotong Lin , Weihao Li , Fangqiao Tian , Dongming Huang

Chinese Grammatical Error Correction (CGEC) aims to generate a correct sentence from an erroneous sequence, where different kinds of errors are mixed. This paper divides the CGEC task into two steps, namely spelling error correction and…

计算与语言 · 计算机科学 2022-11-04 Xiuyu Wu , Yunfang Wu

A hierarchical Bayesian approach that permits simultaneous inference for the regression coefficient matrix and the error precision (inverse covariance) matrix in the multivariate linear model is proposed. Assuming a natural ordering of the…

统计方法学 · 统计学 2024-10-29 Christina Zhao , Ding Xiang , Galin L. Jones , Adam J. Rothman

We consider high-dimensional generalized linear models when the covariates are contaminated by measurement error. Estimates from errors-in-variables regression models are well-known to be biased in traditional low-dimensional settings if…

统计计算 · 统计学 2020-01-06 Michael Byrd , Monnie McGee

This contribution is the chapter 2 of the book "geodetic time series analysis" (10.1007/978-3-030-21718-1). The book is dedicated to the art of fitting a trajectory model to those geodetic time series in order to extract accurate…

其他统计学 · 统计学 2019-08-30 Machiel S. Bos , Jean-Philippe Montillet , Simon D. P. Williams , Rui M. S. Fernandes