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This letter presents an adaptive spectrum sensing algorithm that detects wideband spectrum using sub-Nyquist sampling rates. By taking advantage of compressed sensing (CS), the proposed algorithm reconstructs the wideband spectrum from…

信息论 · 计算机科学 2013-03-11 Hongjian Sun , Wei-Yu Chiu , A. Nallanathan

In this paper, we compare the performances of cooperative and distributed spectrum sensing in wireless sensor networks. After introducing the basic problem, we describe two strategies: 1) a cooperative sensing strategy, which takes…

网络与互联网体系结构 · 计算机科学 2008-09-22 Zheng Sun , Wenjun Xu , Zhiqiang He , Kai Niu

Existing deep neural network based salient object detection (SOD) methods mainly focus on pursuing high network accuracy. However, those methods overlook the gap between network accuracy and prediction confidence, known as the confidence…

计算机视觉与模式识别 · 计算机科学 2020-12-14 Jing Zhang , Yuchao Dai , Xin Yu , Mehrtash Harandi , Nick Barnes , Richard Hartley

Spectrum sensing is a fundamental and critical issue for opportunistic spectrum access in cognitive radio networks. Among the many spectrum sensing methods, the information theoretic criteria (ITC) based method is a promising blind method…

信息论 · 计算机科学 2010-08-05 Rui Wang , Meixia Tao

Spectral clustering is a powerful tool for unsupervised data analysis. In this paper, we propose a context-aware hypergraph similarity measure (CAHSM), which leads to robust spectral clustering in the case of noisy data. We construct three…

计算机视觉与模式识别 · 计算机科学 2016-11-15 Xi Li , Weiming Hu , Chunhua Shen , Anthony Dick , Zhongfei Zhang

To address the power system hardening problem, traditional approaches often adopt robust optimization (RO) that considers a fixed set of concerned contingencies, regardless of the fact that hardening some components actually renders…

系统与控制 · 电气工程与系统科学 2025-03-07 Donglai Ma , Xiaoyu Cao , Bo Zeng , Qing-Shan Jia , Chen Chen , Qiaozhu Zhai , Xiaohong Guan

Wideband spectrum sensing is a critical component of a functioning cognitive radio system. Its major challenge is the too high sampling rate requirement. Compressive sensing (CS) promises to be able to deal with it. Nearly all the current…

信息论 · 计算机科学 2011-06-21 Yipeng Liu , Qun Wan

Energy Efficiency of a wireless sensor network (WSN) relies on its main characteristics, including hop-number, user's location, allocated power, and relay. Identifying nodes, which have more impact on these characteristics, is, however,…

网络与互联网体系结构 · 计算机科学 2023-05-02 Behnam Ojaghi , Mohammad Mahdi Dehshibi

Convolutional neural networks are sensitive to unknown noisy condition in the test phase and so their performance degrades for the noisy data classification task including noisy speech recognition. In this research, a new convolutional…

音频与语音处理 · 电气工程与系统科学 2020-01-01 Elyas Rashno , Ahmad Akbari , Babak Nasersharif

High signal to noise ratio (SNR) consistency of model selection criteria in linear regression models has attracted a lot of attention recently. However, most of the existing literature on high SNR consistency deals with model order…

机器学习 · 统计学 2017-03-13 Sreejith Kallummil , Sheetal Kalyani

This paper considers a sensor attack and fault detection problem for linear cyber-physical systems, which are subject to system noise that can obey an unknown light-tailed distribution. We propose a new threshold-based detection mechanism…

动力系统 · 数学 2020-09-08 Dan Li , Sonia Martínez

In this paper, we investigate a Bayesian sparse reconstruction algorithm called compressive sensing via Bayesian support detection (CS-BSD). This algorithm is quite robust against measurement noise and achieves the performance of a minimum…

信息论 · 计算机科学 2012-05-15 Jaewook Kang , Heung-No Lee , Kiseon Kim

An energy harvesting cognitive radio scenario is considered where a secondary user (SU) with finite battery capacity opportunistically accesses the primary user (PU) channels. The objective is to maximize the throughput of SU under energy…

信息论 · 计算机科学 2014-12-22 Jeya Pradha J , Sanket S. Kalamkar , Adrish Banerjee

Signal analysis and classification is fraught with high levels of noise and perturbation. Computer-vision-based deep learning models applied to spectrograms have proven useful in the field of signal classification and detection; however,…

机器学习 · 计算机科学 2024-09-04 Joel Brogan , Olivera Kotevska , Anibely Torres , Sumit Jha , Mark Adams

We consider a setting, where the output of a linear dynamical system (LDS) is, with an unknown but fixed probability, replaced by noise. There, we present a robust method for the prediction of the outputs of the LDS and identification of…

机器学习 · 计算机科学 2018-08-06 Jakub Marecek , Tigran Tchrakian

In this paper, we study and analyze cooperative cognitive radio networks with arbitrary number of secondary users (SUs). Each SU is considered a prospective relay for the primary user (PU) besides having its own data transmission demand. We…

网络与互联网体系结构 · 计算机科学 2016-03-22 Mahmoud Ashour , M. Majid Butt , Amr Mohamed , Tamer ElBatt , Marwan Krunz

Precise measurement of frequency sensitivity coefficients (FSCs) of some physical effects contributing to uncertainty is an important work in type-B uncertainty (u_B) evaluation of atomic frequency standards. We proposed a method based on…

量子物理 · 物理学 2019-09-11 Qian Wang , Ning Zhang , Rong Wei , Yuzhu Wang

False alerts due to misconfigured/ compromised IDS in ICS networks can lead to severe economic and operational damage. To solve this problem, research has focused on leveraging deep learning techniques that help reduce false alerts.…

人工智能 · 计算机科学 2022-03-14 Abhijeet Sahu , Katherine Davis

Content-based recommendation systems (CRSs) utilize content features to predict user-item interactions, serving as essential tools for helping users navigate information-rich web services. However, ensuring the effectiveness of CRSs…

机器学习 · 计算机科学 2026-01-16 Hung Vinh Tran , Tong Chen , Hechuan Wen , Quoc Viet Hung Nguyen , Bin Cui , Hongzhi Yin

Coherent diffraction imaging (CDI) is high-resolution lensless microscopy that has been applied to image a wide range of specimens using synchrotron radiation, X-ray free electron lasers, high harmonic generation, soft X-ray laser and…

光学 · 物理学 2014-01-23 Jose A Rodriguez , Rui Xu , Chien-Chun Chen , Yunfei Zou , Jianwei Miao
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