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This paper addresses state estimation of linear systems with special attention on unknown process and measurement noise covariances, aiming to enhance estimation accuracy while preserving the stability guarantee of the Kalman filter. To…

信号处理 · 电气工程与系统科学 2021-10-12 Xiangxiang Dong , Giorgio Battistelli , Luigi Chisci , Yunze Cai

We consider distributed estimation of a Gaussian vector with a linear observation model in an inhomogeneous wireless sensor network, where a fusion center (FC) reconstructs the unknown vector, using a linear estimator. Sensors employ…

信息论 · 计算机科学 2016-08-24 Alireza Sani , Azadeh Vosoughi

Quantum phase estimation (QPE) is the key subroutine of several quantum computing algorithms as well as a central ingredient in quantum computational chemistry and quantum simulation. While QPE strategies have focused on the estimation of a…

量子物理 · 物理学 2021-07-26 Valentin Gebhart , Augusto Smerzi , Luca Pezzè

In this paper, we propose a Bayesian channel estimator for intelligent reflecting surface-aided (IRS-aided) millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems with semi-passive elements that can receive the…

信息论 · 计算机科学 2023-12-29 In-soo Kim , Mehdi Bennis , Jaeky Oh , Jaehoon Chung , Junil Choi

The paper presents a new sampling methodology for Bayesian networks that samples only a subset of variables and applies exact inference to the rest. Cutset sampling is a network structure-exploiting application of the Rao-Blackwellisation…

人工智能 · 计算机科学 2011-10-13 B. Bidyuk , R. Dechter

Radio map estimation (RME), which predicts wireless signal metrics at unmeasured locations from sparse measurements, has attracted growing attention as a key enabler of intelligent wireless networks. The majority of existing RME techniques…

信号处理 · 电气工程与系统科学 2026-03-24 Haihan Nan , Emmanuel Obeng Frimpong , Zhi Tian , Yue Wang , Lingjia Liu

Neural networks are used for channel decoding, channel detection, channel evaluation, and resource management in multi-input and multi-output (MIMO) wireless communication systems. In this paper, we consider the problem of finding precoding…

信号处理 · 电气工程与系统科学 2022-05-06 Evgeny Bobrov , Alexander Markov , Sviatoslav Panchenko , Dmitry Vetrov

Efficient feature selection from high-dimensional datasets is a very important challenge in many data-driven fields of science and engineering. We introduce a statistical mechanics inspired strategy that addresses the problem of sparse…

机器学习 · 统计学 2021-04-07 Alfredo Braunstein , Thomas Gueudré , Andrea Pagnani , Mirko Pieropan

The spectrum environment map (SEM), which can visualize the information of invisible electromagnetic spectrum, is vital for monitoring, management, and security of spectrum resources in cognitive radio (CR) networks. In view of a limited…

信号处理 · 电气工程与系统科学 2023-02-28 Jie Wang , Qiuming Zhu , Zhipeng Lin , Qihui Wu , Yang Huang , Xuezhao Cai , Weizhi Zhong , Yi Zhao

Spectral methods have greatly advanced the estimation of latent variable models, generating a sequence of novel and efficient algorithms with strong theoretical guarantees. However, current spectral algorithms are largely restricted to…

机器学习 · 计算机科学 2013-12-10 Le Song , Animashree Anandkumar , Bo Dai , Bo Xie

This paper proposes an event-triggered variational Bayesian filter for remote state estimation with unknown and time-varying noise covariances. After presetting multiple nominal process noise covariances and an initial measurement noise…

信号处理 · 电气工程与系统科学 2022-06-15 Xiaoxu Lv , Peihu Duan , Zhisheng Duan , Guanrong Chen , Ling Shi

In a mixed generalized linear model, the goal is to learn multiple signals from unlabeled observations: each sample comes from exactly one signal, but it is not known which one. We consider the prototypical problem of estimating two…

统计理论 · 数学 2026-01-12 Yihan Zhang , Marco Mondelli , Ramji Venkataramanan

In this article, we present a data-driven method for parametric models with noisy observation data. Gaussian process regression based reduced order modeling (GPR-based ROM) can realize fast online predictions without using equations in the…

计算工程、金融与科学 · 计算机科学 2023-05-17 Xuehan Zhang , Lijian Jiang

Linear minimum mean-square error (L-MMSE) equalization is among the most popular methods for data detection in massive multi-user multiple-input multiple-output (MU-MIMO) wireless systems. While L-MMSE equalization enables near-optimal…

信息论 · 计算机科学 2017-11-29 Charles Jeon , Gulnar Mirza , Ramina Ghods , Arian Maleki , Christoph Studer

This paper proposes new methodology for sequential state and parameter estimation within the ensemble Kalman filter. The method is fully Bayesian and propagates the joint posterior density of states and parameters over time. In order to…

统计方法学 · 统计学 2016-11-14 Jonathan R. Stroud , Matthias Katzfuss , Christopher K. Wikle

We consider efficient estimation of flexible transformation models with interval-censored data. To reduce the dimension of semi-parametric models, the unknown monotone transformation function is approximated via monotone splines. A…

统计方法学 · 统计学 2019-12-30 Minggen Lu , Yan Liu , Chin-Shang Li , Jianguo Sun

Current quantum computers suffer from non-stationary noise channels with high error rates, which undermines their reliability and reproducibility. We propose a Bayesian inference-based adaptive algorithm that can learn and mitigate quantum…

量子物理 · 物理学 2023-08-30 Samudra Dasgupta , Arshag Danageozian , Travis S. Humble

Considering the problem of nonlinear and non-gaussian filtering of the graph signal, in this paper, a robust square root unscented Kalman filter based on graph signal processing is proposed. The algorithm uses a graph topology to generate…

信号处理 · 电气工程与系统科学 2024-09-12 Jinhui Hu , Haiquan Zhao , Yi Peng

We propose a new method for high-dimensional semi-supervised learning problems based on the careful aggregation of the results of a low-dimensional procedure applied to many axis-aligned random projections of the data. Our primary goal is…

统计方法学 · 统计学 2023-04-19 Tengyao Wang , Edgar Dobriban , Milana Gataric , Richard J. Samworth

Stochastic sampling methods are arguably the most direct and least intrusive means of incorporating parametric uncertainty into numerical simulations of partial differential equations with random inputs. However, to achieve an overall error…

数值分析 · 数学 2014-04-09 Hans-Werner van Wyk