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Global warming leads to the increase in frequency and intensity of climate extremes that cause tremendous loss of lives and property. Accurate long-range climate prediction allows more time for preparation and disaster risk management for…

Methods to handle missing data have been extensively explored in the context of estimation and descriptive studies, with multiple imputation being the most widely used method in clinical research. However, in the context of clinical risk…

统计方法学 · 统计学 2024-11-25 Junhui Mi , Rahul D. Tendulkar , Sarah M. C. Sittenfeld , Sujata Patil , Emily C. Zabor

Short-term forecasting models typically assume the availability of input data (features) when they are deployed and in use. However, equipment failures, disruptions, cyberattacks, may lead to missing features when such models are used…

机器学习 · 统计学 2025-06-30 Akylas Stratigakos , Panagiotis Andrianesis

A major challenge in nuclear fusion research is the coherent combination of data from heterogeneous diagnostics and modelling codes for machine control and safety as well as physics studies. Measured data from different diagnostics often…

等离子体物理 · 物理学 2024-11-15 R. Fischer , A. Bock , S. S. Denk , A. Medvedeva. M. Salewski , M. Schneider , D. Stieglitz , ASDEX Upgrade Team

Predictive models are often introduced to decision-making tasks under the rationale that they improve performance over an existing decision-making policy. However, it is challenging to compare predictive performance against an existing…

机器学习 · 计算机科学 2024-06-13 Luke Guerdan , Amanda Coston , Kenneth Holstein , Zhiwei Steven Wu

The fusion techniques that utilize multiple feature sets to form new features that are often more robust and contain useful information for future processing are referred to as feature fusion. The term data fusion is applied to the class of…

计算机视觉与模式识别 · 计算机科学 2015-06-02 Alex Pappachen James , Belur Dasarathy

The presence of missing entries in data often creates challenges for pattern recognition algorithms. Traditional algorithms for clustering data assume that all the feature values are known for every data point. We propose a method to…

计算机视觉与模式识别 · 计算机科学 2017-09-07 Sunrita Poddar , Mathews Jacob

As an enabler technique, data fusion has gained great attention in the context of Internet of things (IoT). In traditional settings, data fusion is done at the cloud server. So the data to be fused should be transferred from the sensor…

分布式、并行与集群计算 · 计算机科学 2019-09-09 Linfu Yang , Bin Liu

Aiming at the limitation that deep long and short-term memory network(DLSTM) algorithm cannot perform parallel computing and cannot obtain global information, in this paper, feature extraction and feature processing are firstly carried out…

计算机视觉与模式识别 · 计算机科学 2022-11-24 Huihui Wu

Longitudinal passive sensing studies for health and behavior outcomes often have missing and incomplete data. Handling missing data effectively is thus a critical data processing and modeling step. Our formative interviews with researchers…

统计方法学 · 统计学 2024-12-10 Akshat Choube , Rahul Majethia , Sohini Bhattacharya , Vedant Das Swain , Jiachen Li , Varun Mishra

The authors propose a robust semi-parametric empirical likelihood method to integrate all available information from multiple samples with a common center of measurements. Two different sets of estimating equations are used to improve the…

统计方法学 · 统计学 2012-10-03 Hsiao-Hsuan Wang , Yuehua Wu , Yuejiao Fu , Xiaogang Wang

A new method is proposed to perform joint analysis of longitudinal and cross-sectional growth data. Clustering is first performed to group similar subjects in cross-sectional data to form a pseudo longitudinal data set, then the pseudo…

统计方法学 · 统计学 2025-09-24 Long Chen , Ji Chen , Yingchun Zhou

Joint models for longitudinal and time-to-event data are commonly used in longitudinal studies to forecast disease trajectories over time. While there are many advantages to joint modeling, the standard forms suffer from limitations that…

机器学习 · 统计学 2019-09-09 Bryan Lim , Mihaela van der Schaar

We consider fits to two or more datasets for which results from the sa me experiment share a common systematic uncertainty in addition to their individ ual statistical errors. This is important in extracting the maximum information from a…

数据分析、统计与概率 · 物理学 2020-09-29 Roger John Barlow

In many experimental or quasi-experimental studies, outcomes of interest are only observed for subjects who select (or are selected) to engage in the activity generating the outcome. Outcome data is thus endogenously missing for units who…

统计方法学 · 统计学 2026-01-14 Cyrus Samii , Ye Wang , Junlong Aaron Zhou

Data collected in clinical trials are often composed of multiple types of variables. For example, laboratory measurements and vital signs are longitudinal data of continuous or categorical variables, adverse events may be recurrent events,…

统计方法学 · 统计学 2023-01-12 Tuo Wang , Rachel Zilinskas , Ying Li , Yongming Qu

A proper fusion of complex data is of interest to many researchers in diverse fields, including computational statistics, computational geometry, bioinformatics, machine learning, pattern recognition, quality management, engineering,…

数据库 · 计算机科学 2022-08-31 Marek Gagolewski

Missing data is a challenge when developing, validating and deploying clinical prediction models (CPMs). Traditionally, decisions concerning missing data handling during CPM development and validation havent accounted for whether…

Experimental and observational studies often lack validity due to untestable assumptions. We propose a double machine learning approach to combine experimental and observational studies, allowing practitioners to test for assumption…

统计方法学 · 统计学 2025-11-26 Harsh Parikh , Marco Morucci , Vittorio Orlandi , Sudeepa Roy , Cynthia Rudin , Alexander Volfovsky

We address one of the important problems in Big Data, namely how to combine estimators from different subsamples by robust fusion procedures, when we are unable to deal with the whole sample. We propose a general framework based on the…

统计理论 · 数学 2018-04-06 Catherine Aaron , Alejandro Cholaquidis , Ricardo Fraiman , Badih Ghattas