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Modern approaches to supervised learning like deep neural networks (DNNs) typically implicitly assume that observed responses are statistically independent. In contrast, correlated data are prevalent in real-life large-scale applications,…

机器学习 · 统计学 2023-01-30 Giora Simchoni , Saharon Rosset

Noisy labeled data represent a rich source of information that often are easily accessible and cheap to obtain, but label noise might also have many negative consequences if not accounted for. How to fully utilize noisy labels has been…

We explore correlated nonlinear phase noise (NLPN) in multi-subcarrier systems. We derive an analytical model for predicting the covariance between the NLPN affecting different subcarriers, and offer a simple algorithm which uses the…

信号处理 · 电气工程与系统科学 2018-12-19 Ori Golani , Dario Pilori , Gabriella Bosco , Mark Shtaif

This paper addresses three critical limitations in previous analyses of RIS-aided wireless systems: propagation environments with fixed diversity gain, restricted spatial correlation profiles, and approximation methods that fail to capture…

In this paper we suggest a new algorithm for determination of signal-to-noise ratio (SNR). SNR is a quantitative measure widely used in science and engineering. Generally, methods for determination of SNR are based on using of…

数据分析、统计与概率 · 物理学 2016-09-30 Z. Zh. Zhanabaev , S. N. Akhtanov , E. T. Kozhagulov , B. A Karibayev

Millimeter-wave (mmWave) sensing enables privacy-preserving, always-on edge perception, but its measurements are often sparse, temporally irregular, and corrupted by high-frequency noise. Existing mmWave pipelines predominantly rely on…

神经与进化计算 · 计算机科学 2026-05-12 Di Yu , Zhenyu Liao , Changze Lv , Wentao Tong , Linshan Jiang , Sijie Ji , Xin Du , Hailiang Zhao , Xiaoqing Zheng , Shuiguang Deng

Optical pulses propagating in multimode optical fibers are affected by linear disorder and nonlinearity, and experience chaotic exchange of power among modes. On the other hand, complex systems can attain steady states characterized by…

光学 · 物理学 2023-06-29 Mario Zitelli , Fabio Mangini , Stefan Wabnitz

This paper examines the implications of using the Scale-Invariant Signal-to-Distortion Ratio (SI-SDR) as both evaluation and training objective in supervised speech separation, when the training references contain noise, as is the case with…

音频与语音处理 · 电气工程与系统科学 2025-08-21 Simon Dahl Jepsen , Mads Græsbøll Christensen , Jesper Rindom Jensen

Coherent dual-polarization (DP) optical transmission systems encode information on the four available degrees of freedom of an optical field: the two polarization states, each with two quadrature components. Such systems naturally operate…

信号处理 · 电气工程与系统科学 2026-01-28 Zhiwei Liang , Bin Chen , Yi Lei , Gabriele Liga , Alex Alvarado

Neural networks are known to develop latent representations that are $aligned$, namely structurally similar across networks trained with different architectures, training protocols, or training datasets. We study this phenomenon in a…

机器学习 · 统计学 2026-05-27 Ali Hussaini Umar , Alessandro Laio

This paper studies the impact of imperfect channel covariance information on the uplink (UL) and downlink (DL) spectral efficiencies (SEs) of a time-division duplexed (TDD) massive multiple-input multiple-output (MIMO) system. We derive…

信息论 · 计算机科学 2019-09-13 A. K. Kocharlakota , K. Upadhya , S. A. Vorobyov

Spectral efficiency for asynchronous code division multiple access (CDMA) with random spreading is calculated in the large system limit allowing for arbitrary chip waveforms and frequency-flat fading. Signal to interference and noise ratios…

信息论 · 计算机科学 2010-07-13 Laura Cottatellucci , Ralf R. Mueller , Merouane Debbah

Enhancing noisy speech is an important task to restore its quality and to improve its intelligibility. In traditional non-machine-learning (ML) based approaches the parameters required for noise reduction are estimated blindly from the…

声音 · 计算机科学 2018-01-16 Robert Rehr , Timo Gerkmann

This paper is on the spectral efficiency (SE) of a dense multi-cell massive multiple-input multiple-output (MIMO). The channels are spatially correlated and the multi-slope path loss model is considered. In our framework, the channel state…

信息论 · 计算机科学 2020-11-05 FahimeSadat Mirhosseini , Aliakbar Tadaion , S. Mohammad Razavizadeh

We present a study of the influence of dispersion induced phase noise for CO-OFDM systems using FFT multiplexing/IFFT demultiplexing techniques (software based). The software based system provides a method for a rigorous evaluation of the…

信息论 · 计算机科学 2016-07-22 Gunnar Jacobsen , Tianhua Xu , Sergei Popov , Sergey Sergeyev , Yimo Zhang

Throughput optimization of optical communication systems is a key challenge for current optical networks. The use of gain-flattening filters (GFFs) simplifies the problem at the cost of insertion loss, higher power consumption and…

机器学习 · 计算机科学 2021-10-01 Metodi Plamenov Yankov , Pawel Marcin Kaminski , Henrik Enggaard Hansen , Francesco Da Ros

The signal-to-noise ratio (SNR) is a fundamental tool to measure the performance of an image sensor. However, confusions sometimes arise between the two types of SNRs. The first one is the output-referred SNR which measures the ratio…

图像与视频处理 · 电气工程与系统科学 2022-06-14 Abhiram Gnanasambandam , Stanley H. Chan

Audio signal processing methods based on deep neural networks (DNNs) are typically trained only at a single sampling frequency (SF) and therefore require signal resampling to handle untrained SFs. However, recent studies have shown that…

With the severe spectrum shortage in conventional cellular bands, millimeter-wave (mmWave) frequencies have been attracting growing attention for next-generation micro- and picocellular wireless networks. A fundamental and open question is…

网络与互联网体系结构 · 计算机科学 2016-04-20 Mattia Rebato , Marco Mezzavilla , Sundeep Rangan , Federico Boccardi , Michele Zorzi

We consider general multi-antenna fading channels with coarsely quantized outputs, where the channel is unknown to the transmitter and receiver. This analysis is of interest in the context of sensor network communication where low power and…

信息论 · 计算机科学 2010-10-28 Amine Mezghani , Josef A. Nossek