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We derive fundamental accuracy limits for distributed localization when a fusion center has access only to independently rate-distortion (RD)-optimally compressed versions of multi-sensor observations, under a line-of-sight propagation…

信息论 · 计算机科学 2026-03-31 Amir Weiss

The generalized likelihood ratio (GLR) test proposed by Fan, Zhang and Zhang [Ann. Statist. 29 (2001) 153-193] and Fan and Yao [Nonlinear Time Series: Nonparametric and Parametric Methods (2003) Springer] is a generally applicable…

统计理论 · 数学 2013-06-21 Yongmiao Hong , Yoon-Jin Lee

In this paper, we investigate the design of distributed detection networks in the presence of an eavesdropper (Eve). We consider the problem of designing binary quantizers at the sensors that maximize the Kullback-Leibler (KL) Divergence at…

信息论 · 计算机科学 2015-09-08 V. Sriram Siddhardh Nadendla , Pramod K. Varshney

This paper deals with spectrum sensing for cognitive radio scenarios where the decision fusion center (DFC) exploits array processing. More specifically, we explore the impact of user cooperation and orthogonal transmissions among secondary…

信息论 · 计算机科学 2013-08-16 Pierluigi Salvo Rossi , Domenico Ciuonzo , Gianmarco Romano

A procedure based on a Mixture Density Model for correcting experimental data for distortions due to finite resolution and limited detector acceptance is presented. Addressing the case that the solution is known to be non-negative, in the…

数据分析、统计与概率 · 物理学 2015-03-09 Nikolai Gagunashvili

The problem of decentralized detection in a sensor network subjected to a total average power constraint and all nodes sharing a common bandwidth is investigated. The bandwidth constraint is taken into account by assuming non-orthogonal…

信息论 · 计算机科学 2007-07-13 Sudharman K. Jayaweera

In this paper, we propose to solve a regularized distributionally robust learning problem in the decentralized setting, taking into account the data distribution shift. By adding a Kullback-Liebler regularization function to the robust…

机器学习 · 计算机科学 2022-09-13 Chaouki Ben Issaid , Anis Elgabli , Mehdi Bennis

In this paper, we consider sequential testing over a single-sensor, a single-decision center setup. At each time instant $t$, the sensor gets $k$ samples $(k>0)$ and describes the observed sequence until time $t$ to the decision center over…

信息论 · 计算机科学 2021-09-20 Sadaf Salehkalaibar , Vincent Y. F. Tan

Detection of a target with known spectral signature when this target may occupy only a fraction of the pixel is an important issue in hyperspectral imaging. We recently derived the generalized likelihood ratio test (GLRT) for such sub-pixel…

信号处理 · 电气工程与系统科学 2020-03-27 Olivier Besson , François Vincent

For the universal hypothesis testing problem, where the goal is to decide between the known null hypothesis distribution and some other unknown distribution, Hoeffding proposed a universal test in the nineteen sixties. Hoeffding's universal…

信息论 · 计算机科学 2016-11-15 Jayakrishnan Unnikrishnan , Dayu Huang , Sean Meyn , Amit Surana , Venugopal Veeravalli

As a robust nonlinear similarity measure in kernel space, correntropy has received increasing attention in domains of machine learning and signal processing. In particular, the maximum correntropy criterion (MCC) has recently been…

机器学习 · 统计学 2016-07-12 Badong Chen , Lei Xing , Haiquan Zhao , Nanning Zheng , José C. Príncipe

In this paper, we reconsider the problem of detecting a matrix-valued rank-one signal in unknown Gaussian noise, which was previously addressed for the case of sufficient training data. We relax the above assumption to the case of limited…

信号处理 · 电气工程与系统科学 2021-05-28 Weijian Liu , Zhaojian Zhang , Jun Liu , Zheran Shang , Yong-Liang Wang

The Cram\'er-Rao bound (CRB), a well-known lower bound on the performance of any unbiased parameter estimator, has been used to study a wide variety of problems. However, to obtain the CRB, requires an analytical expression for the…

机器学习 · 计算机科学 2022-10-11 Hai Victor Habi , Hagit Messer , Yoram Bresler

We study a class of binary detection problems involving a single fusion center and a large or countably infinite number of sensors. Each sensor acts under a decentralized information structure, accessing only a local noisy observation…

最优化与控制 · 数学 2025-09-29 Sina Sanjari , Naci Saldi , Sinan Gezici , Serdar Yüksel

In this paper we present a theoretical performance analysis of the maximum ratio combining (MRC) rule for channel-aware decision fusion over multiple-input multiple-output (MIMO) channels for (conditionally) dependent and independent local…

信息论 · 计算机科学 2013-11-07 D. Ciuonzo , G. Romano , P. Salvo Rossi

The proliferation of cameras and personal devices results in a wide variability of imaging conditions, producing large intra-class variations and a significant performance drop when images from heterogeneous environments are compared.…

计算机视觉与模式识别 · 计算机科学 2023-11-03 Fernando Alonso-Fernandez , Kiran B. Raja , Christoph Busch , Josef Bigun

This paper investigates distributed detection of sparse stochastic signals with quantized measurements under Byzantine attacks. Under this type of attack, sensors in the networks might send falsified data to degrade system performance. The…

信号处理 · 电气工程与系统科学 2023-05-01 Chen Quan , Yunghsiang S. Han , Baocheng Geng , Pramod K. Varshney

Dual-functional radar-communication (DFRC) signal design has received much attention lately. We consider the scenario of one-bit massive multi-input multi-output (MIMO) wherein one-bit DACs are employed for the sake of saving hardware…

信号处理 · 电气工程与系统科学 2025-01-28 Wai-Yiu Keung , Hei Victor Cheng , Wing-Kin Ma

Distributed detection primarily centers around two approaches: Unquantized Distributed Detection (UDD), where each sensor reports its complete observation to the fusion center (FC), and quantized-and-Coded DD (CDD), where each sensor first…

信息论 · 计算机科学 2023-11-07 Lei Cao , Ramanarayanan Viswanathan

Model-X approaches to testing conditional independence between a predictor and an outcome variable given a vector of covariates usually assume exact knowledge of the conditional distribution of the predictor given the covariates.…

统计方法学 · 统计学 2023-02-10 Ziang Niu , Abhinav Chakraborty , Oliver Dukes , Eugene Katsevich