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In this paper, we develop econometric tools to analyze the integrated volatility of the efficient price and the dynamic properties of microstructure noise in high-frequency data under general dependent noise. We first develop consistent…

统计理论 · 数学 2018-06-14 Z. Merrick Li , Roger J. A. Laeven , Michel H. Vellekoop

Click-evoked otoacoustic emissions (CEOAEs) are clinically used as an objective way to infer whether cochlear functions are normal. However, because the sound pressure level of CEOAEs is typically much lower than the background noise, it…

信号处理 · 电气工程与系统科学 2021-04-28 Tzu-Chi Liu , Yi-Wen Liu , Hau-Tieng Wu

Previous criteria for the feasibility of reconstructing phase information from intensity measurements, both in x-ray crystallography and more recently in coherent x-ray imaging, have been based on the Maxwell constraint counting principle.…

数据分析、统计与概率 · 物理学 2015-05-20 Veit Elser , Stefan Eisebitt

Noise is a part of data whether the data is from measurement, experiment or ... A few techniques are suggested for noise reduction to improve the data quality in recent years some of which are based on wavelet, orthogonalization and neural…

计算工程、金融与科学 · 计算机科学 2023-08-02 Negin Bagherpour , Abbas Mohammadiyan

Tunneling spectroscopy is an important tool for the study of both real-space and momentum-space electronic structure of correlated electron systems. However, such measurements often yield noisy data. Machine learning provides techniques to…

Reconstruction-based methods are a dominant paradigm in time series anomaly detection (TSAD), however, their near-universal reliance on Mean Squared Error (MSE) loss results in statistically flawed reconstruction residuals. This fundamental…

机器学习 · 计算机科学 2026-05-12 Wenlong Shang , Shihao Tian , Xutong Wan , Peng Chang

Noise on quantum devices is much more complex than it is commonly given credit. Far from usual models of decoherence, nearly all quantum devices are plagued both by a continuum of environments and temporal instabilities. These induce noisy…

量子物理 · 物理学 2025-08-27 Gregory A. L. White , Petar Jurcevic , Charles D. Hill , Kavan Modi

Existing self-supervised pre-trained speech models have offered an effective way to leverage massive unannotated corpora to build good automatic speech recognition (ASR). However, many current models are trained on a clean corpus from a…

声音 · 计算机科学 2023-03-01 Dianwen Ng , Ruixi Zhang , Jia Qi Yip , Zhao Yang , Jinjie Ni , Chong Zhang , Yukun Ma , Chongjia Ni , Eng Siong Chng , Bin Ma

This paper introduces a new conservative fusion method to exploit the correlated components within the estimation errors. Fusion is the process of combining multiple estimates of a given state to produce a new estimate with a smaller MSE.…

信号处理 · 电气工程与系统科学 2024-03-07 Colin Cros , Pierre-Olivier Amblard , Christophe Prieur , Jean-François Da Rocha

Herein, we present a detailed analysis of an eigenvalue based sensing technique in the presence of correlated noise in the context of a Cognitive Radio (CR). We use a Standard Condition Number (SCN) based decision statistic based on…

信息论 · 计算机科学 2012-10-24 Shree Krishna Sharma , Symeon Chatzinotas , Björn Ottersten

Label noise is a common issue in real-world datasets that inevitably impacts the generalization of models. This study focuses on robust classification tasks where the label noise is instance-dependent. Estimating the transition matrix…

机器学习 · 计算机科学 2024-04-09 Yukun Yang , Naihao Wang , Haixin Yang , Ruirui Li

This paper concerns the McKean-Vlasov stochastic differential equation (SDE) with common noise. An appropriate definition of a weak solution to such an equation is developed. The importance of the notion of compatibility in this definition…

概率论 · 数学 2020-06-29 William R. P. Hammersley , David Šiška , Łukasz Szpruch

We consider the problem of robust deconvolution, and particularly the recovery of an unknown deterministic signal convolved with a known filter and corrupted by additive noise. We present a novel, non-iterative data-driven approach.…

信号处理 · 电气工程与系统科学 2021-11-04 Amir Weiss , Boaz Nadler

In this paper, we propose a method to address the problem of source estimation for Sparse Component Analysis (SCA) in the presence of additive noise. Our method is a generalization of a recently proposed method (SL0), which has the…

多媒体 · 计算机科学 2008-11-19 Hamed Firouzi , Masoud Farivar , Massoud Babaie-Zadeh , Christian Jutten

Shuffled regression and unlinked regression represent intriguing challenges that have garnered considerable attention in many fields, including but not limited to ecological regression, multi-target tracking problems, image denoising, etc.…

统计理论 · 数学 2024-04-16 Cecile Durot , Debarghya Mukherjee

We describe a framework for designing efficient active learning algorithms that are tolerant to random classification noise and are differentially-private. The framework is based on active learning algorithms that are statistical in the…

机器学习 · 计算机科学 2014-11-06 Maria Florina Balcan , Vitaly Feldman

Speech emotion recognition (SER) plays a critical role in building emotion-aware speech systems, but its performance degrades significantly under noisy conditions. Although speech enhancement (SE) can improve robustness, it often introduces…

音频与语音处理 · 电气工程与系统科学 2026-04-29 Jing-Tong Tzeng , Carlos Busso , Chi-Chun Lee

Atomic norm methods have recently been proposed for spectral super-resolution with flexibility in dealing with missing data and miscellaneous noises. A notorious drawback of these convex optimization methods however is their lower…

信号处理 · 电气工程与系统科学 2022-11-29 Zai Yang , Yi-Lin Mo , Gongguo Tang , Zongben Xu

Magnetic resonance imaging (MRI) is a powerful noninvasive diagnostic imaging tool that provides unparalleled soft tissue contrast and anatomical detail. Noise contamination, especially in accelerated and/or low-field acquisitions, can…

图像与视频处理 · 电气工程与系统科学 2025-05-12 Jiachen Tu , Yaokun Shi , Fan Lam

We consider the matrix completion problem under a form of row/column weighted entrywise sampling, including the case of uniform entrywise sampling as a special case. We analyze the associated random observation operator, and prove that with…

信息论 · 计算机科学 2011-05-17 Sahand Negahban , Martin J. Wainwright