中文
相关论文

相关论文: Bayesian semiparametric modelling of phase-varying…

200 篇论文

The recently developed semi-parametric generalized linear model (SPGLM) offers more flexibility as compared to the classical GLM by including the baseline or reference distribution of the response as an additional parameter in the model.…

统计方法学 · 统计学 2024-04-09 Entejar Alam , Peter Müller , Paul J. Rathouz

This paper proposes a Hilbert space embedding for Dirichlet Process mixture models via a stick-breaking construction of Sethuraman. Although Bayesian nonparametrics offers a powerful approach to construct a prior that avoids the need to…

机器学习 · 统计学 2012-10-17 Krikamol Muandet

Many complex dynamical phenomena can be effectively modeled by a system that switches among a set of conditionally linear dynamical modes. We consider two such models: the switching linear dynamical system (SLDS) and the switching vector…

统计方法学 · 统计学 2015-05-18 Emily B. Fox , Erik B. Sudderth , Michael I. Jordan , Alan S. Willsky

We present a Bayesian model for estimating the joint distribution of multivariate categorical data when units are nested within groups. Such data arise frequently in social science settings, for example, people living in households. The…

统计方法学 · 统计学 2016-10-31 Jingchen Hu , Jerome P. Reiter , Quanli Wang

We propose a two stage procedure for the estimation of the parameters of a fairly general, continuous-time stochastic volatility. An important ingredient of the proposed method is the Cuchiero-Teichmann volatility estimator, which is based…

统计理论 · 数学 2018-12-31 Milan Merkle , Yuri F. Saporito , Rodrigo S. Targino

This paper proposes a flexible Bayesian approach to multiple imputation using conditional Gaussian mixtures. We introduce novel shrinkage priors for covariate-dependent mixing proportions in the mixture models to automatically select the…

统计方法学 · 统计学 2022-08-17 Shonosuke Sugasawa , Jae Kwang Kim , Kosuke Morikawa

While most Bayesian nonparametric models in machine learning have focused on the Dirichlet process, the beta process, or their variants, the gamma process has recently emerged as a useful nonparametric prior in its own right. Current…

机器学习 · 统计学 2017-04-17 Anirban Roychowdhury , Brian Kulis

We study learning problems in which the conditional distribution of the output given the input varies as a function of additional task variables. In varying-coefficient models with Gaussian process priors, a Gaussian process generates the…

机器学习 · 计算机科学 2015-10-15 Matthias Bussas , Christoph Sawade , Tobias Scheffer , Niels Landwehr

Bayesian methods are developed for the multivariate nonparametric regression problem where the domain is taken to be a compact Riemannian manifold. In terms of the latter, the underlying geometry of the manifold induces certain symmetries…

统计理论 · 数学 2007-06-13 Jean-François Angers , Peter T. Kim

Bayesian inference and uncertainty quantification in a general class of non-linear inverse regression models is considered. Analytic conditions on the regression model $\{\mathscr G(\theta): \theta \in \Theta\}$ and on Gaussian process…

统计理论 · 数学 2021-04-16 François Monard , Richard Nickl , Gabriel P. Paternain

The proposal and study of dependent prior processes has been a major research focus in the recent Bayesian nonparametric literature. In this paper, we introduce a flexible class of dependent nonparametric priors, investigate their…

统计理论 · 数学 2014-07-03 Antonio Lijoi , Bernardo Nipoti , Igor Prünster

We introduce a Bayesian framework for inference with a supervised version of the Gaussian process latent variable model. The framework overcomes the high correlations between latent variables and hyperparameters by using an unbiased pseudo…

机器学习 · 统计学 2018-03-29 Charles Gadd , Sara Wade , Akeel Shah , Dimitris Grammatopoulos

Variational inference techniques based on inducing variables provide an elegant framework for scalable posterior estimation in Gaussian process (GP) models. Besides enabling scalability, one of their main advantages over sparse…

机器学习 · 统计学 2021-02-24 Simone Rossi , Markus Heinonen , Edwin V. Bonilla , Zheyang Shen , Maurizio Filippone

The major goal of this paper is to study the second order frequentist properties of the marginal posterior distribution of the parametric component in semiparametric Bayesian models, in particular, a second order semiparametric…

统计理论 · 数学 2015-03-17 Yun Yang , Guang Cheng , David B. Dunson

We present a new approach to semiparametric inference using corrected posterior distributions. The method allows us to leverage the adaptivity, regularization and predictive power of nonparametric Bayesian procedures to estimate…

统计方法学 · 统计学 2023-06-21 Andrew Yiu , Edwin Fong , Chris Holmes , Judith Rousseau

We develop a Bayesian hierarchical semiparametric model for phenomena related to time series of counts. The main feature of the model is its capability to learn a latent pattern of heterogeneity in the distribution of the process innovation…

统计方法学 · 统计学 2019-07-09 Helton Graziadei , Hedibert F. Lopes , Paulo C. Marques F

In the usual Bayesian setting, a full probabilistic model is required to link the data and parameters, and the form of this model and the inference and prediction mechanisms are specified via de Finetti's representation. In general, such a…

统计方法学 · 统计学 2026-01-21 Yu Luo , David A. Stephens , Daniel J. Graham , Emma J. McCoy

In particle physics, as in many areas of science, parameter inference relies on simulations to bridge the gap between theory and experiment. Recent developments in simulation-based inference have boosted the sensitivity of analyses;…

高能物理 - 唯象学 · 物理学 2026-04-23 Ezequiel Alvarez , Sean Benevedes , Manuel Szewc , Jesse Thaler

I introduce a general, Bayesian method for modelling univariate time series data assumed to be drawn from a continuous, stochastic process. The method accommodates arbitrary temporal sampling, and takes into account measurement…

天体物理仪器与方法 · 物理学 2012-10-24 C. A. L. Bailer-Jones

We propose a Bayesian method to detect change points for functional data. We extract the features of a sequence of functional data by the discrete wavelet transform (DWT), and treat each sequence of feature independently. We believe there…

统计方法学 · 统计学 2018-08-06 Xiuqi Li , Subhashis Ghosal