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Bayesian estimation is a powerful theoretical paradigm for the operation of quantum sensors. However, the Bayesian method for statistical inference generally suffers from demanding calibration requirements that have so far restricted its…

量子物理 · 物理学 2021-09-22 Samuel P. Nolan , Augusto Smerzi , Luca Pezzè

An empirical Bayes approach to the estimation of possibly sparse sequences observed in Gaussian white noise is set out and investigated. The prior considered is a mixture of an atom of probability at zero and a heavy-tailed density \gamma,…

统计理论 · 数学 2007-06-13 Iain M. Johnstone , Bernard W. Silverman

This paper proposes a novel algorithm for signal classification problems. We consider a non-stationary random signal, where samples can be classified into several different classes, and samples in each class are identically independently…

信息论 · 计算机科学 2009-03-02 Xudong Ma

An ensemble method is introduced that utilizes randomization and loss function gradients to compute a prediction. Multiple weakly-correlated estimators approximate the gradient at randomly sampled points on the error surface and are…

机器学习 · 计算机科学 2020-09-15 Nicholas Smith

We describe a statistical hypothesis test for the presence of a signal. The test allows the researcher to fix the signal location and/or width a priori, or perform a search to find the signal region that maximizes the signal. The background…

数据分析、统计与概率 · 物理学 2007-05-23 Wolfgang Rolke , Angel Lopez

A Bayesian analysis of the probability of a signal in the presence of background is developed, and criteria are proposed for claiming evidence for, or the discovery of a signal. The method is general and in particular applicable to sparsely…

数据分析、统计与概率 · 物理学 2009-11-13 Allen Caldwell , Kevin Kröninger

In all applications in digital communications, it is crucial for an estimator to be unbiased. Although so-called soft feedback is widely employed in many different fields of engineering, typically the biased estimate is used. In this paper,…

信息论 · 计算机科学 2018-02-21 Susanne Sparrer , Robert F. H. Fischer

In this paper, we propose a novel method for separately estimating spectral distributions from images captured by a typical RGB camera. The proposed method allows us to separately estimate a spectral distribution of illumination,…

图像与视频处理 · 电气工程与系统科学 2021-06-04 Yuma Kinoshita , Hitoshi Kiya

Bayesian, classical, and extended maximum likelihood approaches to estimation of upper limits in experiments with small numbers of signal events are surveyed. The discussion covers only experiments whose outcomes are well described by a…

高能物理 - 实验 · 物理学 2011-07-19 Ilya Narsky

We review the methods of constructing confidence intervals that account for a priori information about one-sided constraints on the parameter being estimated. We show that the so-called method of sensitivity limit yields a correct solution…

数据分析、统计与概率 · 物理学 2015-05-20 A. V. Lokhov , F. V. Tkachov

The exploration of complex physical or technological processes usually requires exploiting available information from different sources: (i) physical laws often represented as a family of parameter dependent partial differential equations…

数值分析 · 数学 2020-02-04 Albert Cohen , Wolfgang Dahmen , Ron DeVore

Sup-norm curve estimation is a fundamental statistical problem and, in principle, a premise for the construction of confidence bands for infinite-dimensional parameters. In a Bayesian framework, the issue of whether the…

统计方法学 · 统计学 2016-03-22 Catia Scricciolo

An imprecise Bayesian nonparametric approach to system reliability with multiple types of components is developed. This allows modelling partial or imperfect prior knowledge on component failure distributions in a flexible way through…

统计方法学 · 统计学 2016-09-19 Gero Walter , Louis J. M. Aslett , Frank P. A. Coolen

This paper considers properties of an optimization based sampler for targeting the posterior distribution when the likelihood is intractable and auxiliary statistics are used to summarize information in the data. Our reverse sampler…

统计方法学 · 统计学 2015-12-02 Jean-Jacques Forneron , Serena Ng

Understanding how different classes are distributed in an unlabeled data set is an important challenge for the calibration of probabilistic classifiers and uncertainty quantification. Approaches like adjusted classify and count, black-box…

机器学习 · 统计学 2024-06-19 Albert Ziegler , Paweł Czyż

The paper introduces a new estimation method for the standard linear regression model. The procedure is not driven by the optimisation of any objective function rather, it is a simple weighted average of slopes from observation pairs. The…

计量经济学 · 经济学 2024-02-27 Felix Chan , Laszlo Matyas

Biased stochastic estimators, such as finite-differences for noisy gradient estimation, often contain parameters that need to be properly chosen to balance impacts from the bias and the variance. While the optimal order of these parameters…

统计方法学 · 统计学 2019-02-14 Henry Lam , Xinyu Zhang , Xuhui Zhang

Blind methods often separate or identify signals or signal subspaces up to an unknown scaling factor. Sometimes it is necessary to cope with the scaling ambiguity, which can be done through reconstructing signals as they are received by…

声音 · 计算机科学 2017-08-02 Zbyněk Koldovský , Francesco Nesta

The estimation of risk measures recently gained a lot of attention, partly because of the backtesting issues of expected shortfall related to elicitability. In this work we shed a new and fundamental light on optimal estimation procedures…

风险管理 · 定量金融 2017-08-25 Marcin Pitera , Thorsten Schmidt

Many recently developed Bayesian methods have focused on sparse signal detection. However, much less work has been done addressing the natural follow-up question: how to make valid inferences for the magnitude of those signals after…

统计方法学 · 统计学 2021-03-02 Spencer Woody , Oscar Hernan Madrid Padilla , James G. Scott