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We consider the Bayesian analysis of models in which the unknown distribution of the outcomes is specified up to a set of conditional moment restrictions. The nonparametric exponentially tilted empirical likelihood function is constructed…

统计理论 · 数学 2021-10-27 Siddhartha Chib , Minchul Shin , Anna Simoni

Missing data can significantly hamper standard time series analysis, yet they occur frequently in applications. In this paper, we introduce temporal Wasserstein imputation, a novel method for imputing missing data in time series. Unlike…

统计方法学 · 统计学 2025-08-15 Shuo-Chieh Huang , Tengyuan Liang , Ruey S. Tsay

Bayesian model averaging has become a widely used approach to accounting for uncertainty about the structural form of the model generating the data. When data arrive sequentially and the generating model can change over time, Dynamic Model…

统计计算 · 统计学 2014-10-30 Luca Onorante , Adrian E. Raftery

A novel framework for Bayesian structural model updating is presented in this study. The proposed method utilizes the surrogate unimodal encoders of a multimodal variational autoencoder (VAE). The method facilitates an approximation of the…

机器学习 · 统计学 2024-06-21 Tatsuya Itoi , Kazuho Amishiki , Sangwon Lee , Taro Yaoyama

Over the past few decades, many applications of physics-based simulations and data-driven techniques (including machine learning and deep learning) have emerged to analyze and predict solar flares. These approaches are pivotal in…

太阳与恒星天体物理 · 物理学 2024-02-07 Anli Ji , Berkay Aydin

This paper deals with inference and prediction for multiple correlated time series, where one has also the choice of using a candidate pool of contemporaneous predictors for each target series. Starting with a structural model for the…

机器学习 · 统计学 2018-09-20 S. Rao Jammalamadaka , Jinwen Qiu , Ning Ning

The Weather Risk Attribution Forecast (WRAF) is a forecasting tool that uses output from global climate models to make simultaneous attribution statements about whether and how greenhouse gas emissions have contributed to extreme weather…

应用统计 · 统计学 2017-11-15 Mark D. Risser , Christopher J. Paciorek , Daithi Stone

Assessment of structural safety status is of paramount importance for existing bridges, where accurate evaluation of flutter probability is essential for long-span bridges. In current engineering practice, at the design stage, flutter…

统计计算 · 统计学 2021-06-22 Xiaolei Chu , Hung Nguyen Sinh , Wei Cui , Lin Zhao , Yaojun Ge

Stuck pipe incidents are one of the major challenges in drilling engineering,leading to massive time loss and additional costs.To address the limitations of insufficient long sequence modeling capability,the difficulty in accurately…

计算工程、金融与科学 · 计算机科学 2025-03-11 Bo Cao , Yu Song , Jin Yang , Lei Li

One of the main challenges in identifying structural changes in stochastic processes is to carry out analysis for time series with dependency structure in a computationally tractable way. Another challenge is that the number of true change…

统计方法学 · 统计学 2017-08-02 Jie Ding , Yu Xiang , Lu Shen , Vahid Tarokh

At present, state-of-the-art forecasting models are short of the ability to capture spatio-temporal dependency and synthesize global information at the stage of learning. To address this issue, in this paper, through the adaptive fuzzified…

人工智能 · 计算机科学 2025-07-29 Lijian Li

This paper introduces a linear state-space model with time-varying dynamics. The time dependency is obtained by forming the state dynamics matrix as a time-varying linear combination of a set of matrices. The time dependency of the weights…

机器学习 · 统计学 2014-10-06 Jaakko Luttinen , Tapani Raiko , Alexander Ilin

Bayesian inference provides a rigorous methodology for estimation and uncertainty quantification of parameters in geophysical forward models. Badlands (basin and landscape dynamics model) is a landscape evolution model that simulates…

地球物理 · 物理学 2021-07-06 Rohitash Chandra , Danial Azam , R. Dietmar Müller , Tristan Salles , Sally Cripps

Missing data is a common problem in real-world sensor data collection. The performance of various approaches to impute data degrade rapidly in the extreme scenarios of low data sampling and noisy sampling, a case present in many real-world…

信号处理 · 电气工程与系统科学 2022-01-21 Charul Paliwal , Pravesh Biyani , Ketan Rajawat

Identifying a coupled dynamical system out of many plausible candidates, each of which could serve as the underlying generator of some observed measurements, is a profoundly ill posed problem that commonly arises when modelling real world…

神经元与认知 · 定量生物学 2019-09-17 Amirhossein Jafarian , Peter Zeidman , Vladimir Litvak , Karl Friston

We develop a flexible spline-based Bayesian hidden Markov model stochastic weather generator to statistically model daily precipitation over time by season at individual locations. The model naturally accounts for missing data (considered…

应用统计 · 统计学 2022-07-19 Christopher J. Paciorek

There is currently a focus on statistical methods which can use historical trial information to help accelerate the discovery, development and delivery of medicine. Bayesian methods can be constructed so that the borrowing is "dynamic" in…

统计方法学 · 统计学 2024-09-13 Darren A. V. Scott , Alex Lewin

There is increasing interest in flexible parametric models for the analysis of time-to-event data, yet Bayesian approaches that offer incorporation of prior knowledge remain underused. A flexible Bayesian parametric model has recently been…

Time-series imputation benchmarks employ uniform random masking and shape-agnostic metrics (MSE, RMSE), implicitly weighting evaluation by regime prevalence. In systems with a dominant attractor -- homeostatic physiology, nominal industrial…

机器学习 · 计算机科学 2026-02-18 Amirreza Dolatpour Fathkouhi , Alireza Namazi , Heman Shakeri

Dynamic Bayesian networks (DBNs) are increasingly used in healthcare due to their ability to model complex temporal relationships in patient data while maintaining interpretability, an essential feature for clinical decision-making.…

机器学习 · 计算机科学 2026-04-30 Federico Pirola , Fabio Stella , Marco Grzegorczyk