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We consider a change detection problem in which the arrival rate of a Poisson process changes suddenly at some unknown and unobservable disorder time. It is assumed that the prior distribution of the disorder time is known. The objective is…

最优化与控制 · 数学 2007-05-23 Erhan Bayraktar , Semih Sezer

Process monitoring and control requires detection of structural changes in a data stream in real time. This article introduces an efficient sequential Monte Carlo algorithm designed for learning unknown changepoints in continuous time. The…

应用统计 · 统计学 2015-09-29 Melissa J. M. Turcotte , Nicholas A. Heard

This paper considers robust modeling of the survival time for cancer patients. Accurate prediction can be helpful for developing therapeutic and care strategies. We propose a unified Expectation-Maximization approach combined with the…

统计方法学 · 统计学 2019-12-23 Yi Li , Muxuan Liang , Lu Mao , Sijian Wang

We propose a numerical method to approximate the value function for the optimal stopping problem of a piecewise deterministic Markov process (PDMP). Our approach is based on quantization of the post jump location---inter-arrival time Markov…

概率论 · 数学 2016-08-14 Benoîte de Saporta , François Dufour , Karen Gonzalez

Two fundamental research tasks in science and engineering are forward predictions and data inversion. This article introduces a recent R package RobustCalibration for Bayesian data inversion and model calibration by experiments and field…

统计计算 · 统计学 2024-02-20 Mengyang Gu

Despite the significance of probabilistic time-series forecasting models, their evaluation metrics often involve intractable integrations. The most widely used metric, the continuous ranked probability score (CRPS), is a strictly proper…

机器学习 · 统计学 2025-07-25 Masaki Adachi , Masahiro Fujisawa , Michael A Osborne

Bayesian cubature (BC) is a popular inferential perspective on the cubature of expensive integrands, wherein the integrand is emulated using a stochastic process model. Several approaches have been put forward to encode sequential…

统计计算 · 统计学 2019-10-09 Matthew A Fisher , Chris J Oates , Catherine Powell , Aretha Teckentrup

We propose a two step strategy for estimating one-dimensional dynamical parameters of a quantum Markov chain, which involves quantum post-processing the output using a coherent quantum absorber and a "pattern counting'' estimator computed…

量子物理 · 物理学 2025-08-28 Federico Girotti , Alfred Godley , Mădălin Guţă

In this paper, we harness a result in point process theory, specifically the expectation of the weighted $K$-function, where the weighting is done by the true first-order intensity function. This theoretical result can be employed as an…

统计方法学 · 统计学 2024-03-13 Nicoletta D'Angelo , Giada Adelfio

An R package SpatialPack that implements routines to compute point estimators and perform hypothesis testing of the spatial association between two stochastic sequences is introduced. These methods address the spatial association between…

应用统计 · 统计学 2016-11-17 Felipe Osorio , Ronny Vallejos , Francisco Cuevas

In this paper we present an information theoretic approach to stochastic optimal control problems for systems with compound Poisson noise. We generalize previous work on information theoretic path integral control to discontinuous dynamics…

最优化与控制 · 数学 2019-07-03 Ziyi Wang , Grady Williams , Evangelos A. Theodorou

We provide a new approach to approximate emulation of large computer experiments. By focusing expressly on desirable properties of the predictive equations, we derive a family of local sequential design schemes that dynamically define the…

统计方法学 · 统计学 2014-10-13 Robert B. Gramacy , Daniel W. Apley

Despite the numerous applications that may be expeditiously modelled by counting processes, stochastic filtering strategies involving Poisson-type observations still remain somewhat poorly developed. In this work, we propose a Monte Carlo…

统计方法学 · 统计学 2014-07-09 Mamatha Venugopal , Ram Mohan Vasu , Debasish Roy

We obtain an explicit error expansion for the solution of Backward Stochastic Differential Equations (BSDEs) using the cubature on Wiener spaces method. The result is proved under a mild strengthening of the assumptions needed for the…

概率论 · 数学 2019-02-22 Jean-François Chassagneux , Camilo A. Garcia Trillos

We present an algorithm which allows a fast numerical computation of Feldman-Cousins confidence intervals for Poisson processes, even when the number of background events is relatively large. This algorithm incorporates an appropriate…

高能物理 - 实验 · 物理学 2009-10-31 J. A. Aguilar-Saavedra

The cubature on Wiener space method, a high-order weak approximation scheme, is established for SPDEs in the case of unbounded characteristics and unbounded payoffs. We first introduce a recently described flexible functional analytic…

概率论 · 数学 2012-01-20 Philipp Doersek , Josef Teichmann , Dejan Veluscek

The expected value of some complex valued random vectors is computed by means of the indicator function of a designed experiment as known in algebraic statistics. The general theory is set-up and results are obtained for finite discrete…

概率论 · 数学 2017-09-27 Claudia Fassino , Eva Riccomagno , Maria-Piera Rogantin

Random point patterns are ubiquitous in nature, and statistical models such as point processes, i.e., algorithms that generate stochastic collections of points, are commonly used to simulate and interpret them. We propose an application of…

量子物理 · 物理学 2020-03-04 Soran Jahangiri , Juan Miguel Arrazola , Nicolás Quesada , Nathan Killoran

We present a novel scheme to boost detection power for kernel maximum mean discrepancy based sequential change-point detection procedures. Our proposed scheme features an optimal sub-sampling of the history data before the detection…

统计方法学 · 统计学 2023-01-19 Song Wei , Chaofan Huang

Gaussian processes (GPs) are important probabilistic tools for inference and learning in spatio-temporal modelling problems such as those in climate science and epidemiology. However, existing GP approximations do not simultaneously support…

机器学习 · 计算机科学 2021-06-21 Will Tebbutt , Arno Solin , Richard E. Turner