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Process analytic approaches play a critical role in supporting the practice of business process management and continuous process improvement by leveraging process-related data to identify performance bottlenecks, extracting insights about…

人工智能 · 计算机科学 2023-01-27 Asjad Khan , Arsal Huda , Aditya Ghose , Hoa Khanh Dam

The problem of choosing appropriate values for missing data is often encountered in the data science. We describe a novel method containing both traditional mathematics and machine learning elements for prediction (imputation) of missing…

机器学习 · 计算机科学 2025-10-13 Peteris Daugulis , Vija Vagale , Emiliano Mancini , Filippo Castiglione

This paper is concerned with identification, estimation, and specification testing in causal evaluation problems when data is selective and/or missing. We leverage recent advances in the literature on graphical methods to provide a unifying…

计量经济学 · 经济学 2023-08-10 Simon Calmar Andersen , Louise Beuchert , Phillip Heiler , Helena Skyt Nielsen

As a paradigm for sequential decision making in unknown environments, reinforcement learning (RL) has received a flurry of attention in recent years. However, the explosion of model complexity in emerging applications and the presence of…

机器学习 · 统计学 2025-07-22 Yuejie Chi , Yuxin Chen , Yuting Wei

Most analyses of randomised trials with incomplete outcomes make untestable assumptions and should therefore be subjected to sensitivity analyses. However, methods for sensitivity analyses are not widely used. We propose a mean score…

统计方法学 · 统计学 2020-07-21 Ian R. White , James Carpenter , Nicholas J. Horton

With the advent of the big data era, the data quality problem is becoming more critical. Among many factors, data with missing values is one primary issue, and thus developing effective imputation models is a key topic in the research…

机器学习 · 计算机科学 2023-08-04 Xinyao Liu , Shengdong Du , Tianrui Li , Fei Teng , Yan Yang

We put forward a simple new randomized missing data (RMD) approach to robust filtering of state-space models, motivated by the idea that the inclusion of only a small fraction of available highly precise measurements can still extract most…

统计方法学 · 统计学 2022-10-21 Dobrislav Dobrev , Derek Hansen , Pawel Szerszen

Currently, knowledge discovery in databases is an essential step to identify valid, novel and useful patterns for decision making. There are many real-world scenarios, such as bankruptcy prediction, option pricing or medical diagnosis,…

In many real-world applications, it is common that a proportion of the data may be missing or only partially observed. We develop a novel two-sample testing method based on the Maximum Mean Discrepancy (MMD) which accounts for missing data…

统计方法学 · 统计学 2024-05-27 Yijin Zeng , Niall M. Adams , Dean A. Bodenham

In the analysis of observational data in social sciences and businesses, it is difficult to obtain a "(quasi) single-source dataset" in which the variables of interest are simultaneously observed. Instead, multiple-source datasets are…

统计方法学 · 统计学 2021-09-02 Masaki Mitsuhiro , Takahiro Hoshino

Data errors are widespread in real-world databases and severely impact downstream applications, such as machine learning pipelines or business analytics reports. Causes of such errors are manifold and can arise during both the design phase…

数据库 · 计算机科学 2026-04-13 Divya Bhadauria , Hazar Harmouch , Felix Naumann , Divesh Srivastava , Lisa Ehrlinger

Semi-supervised learning is a powerful technique for leveraging unlabeled data to improve machine learning models, but it can be affected by the presence of ``informative'' labels, which occur when some classes are more likely to be labeled…

The number of missing people (i.e., people who get lost) greatly increases in recent years. It is a serious worldwide problem, and finding the missing people consumes a large amount of social resources. In tracking and finding these missing…

社会与信息网络 · 计算机科学 2018-06-06 Yang Yang , Haoyan Liu , Xia Hu , Jiawei Zhang , Xiaoming Zhang , Zhoujun Li , Philip S. Yu

Statistical models are central to machine learning with broad applicability across a range of downstream tasks. The models are controlled by free parameters that are typically estimated from data by maximum-likelihood estimation or…

机器学习 · 计算机科学 2023-08-16 Vaidotas Simkus , Benjamin Rhodes , Michael U. Gutmann

We demonstrate a simple strategy to cope with missing data in sequential inputs, addressing the task of multilabel classification of diagnoses given clinical time series. Collected from the pediatric intensive care unit (PICU) at Children's…

机器学习 · 计算机科学 2016-11-14 Zachary C. Lipton , David C. Kale , Randall Wetzel

Comparison studies in methodological research are intended to compare methods in an evidence-based manner to help data analysts select a suitable method for their application. To provide trustworthy evidence, they must be carefully…

With the rapid development of Internet of Things (IoT) and artificial intelligence technologies, data has become an important strategic resource in the new era. However, the growing demand for data has exacerbated the issue of \textit{data…

计算机科学与博弈论 · 计算机科学 2025-02-25 Bing Mi , Zhengwang Han , Kongyang Chen

Missing values in tabular data restrict the use and performance of machine learning, requiring the imputation of missing values. The most popular imputation algorithm is arguably multiple imputations using chains of equations (MICE), which…

机器学习 · 计算机科学 2022-03-01 Manar D Samad , Sakib Abrar , Norou Diawara

With the advent of open source software, a veritable treasure trove of previously proprietary software development data was made available. This opened the field of empirical software engineering research to anyone in academia. Data that is…

软件工程 · 计算机科学 2022-04-19 Adam Tutko , Austin Z. Henley , Audris Mockus

The treatment of missing data can be difficult in multilevel research because state-of-the-art procedures such as multiple imputation (MI) may require advanced statistical knowledge or a high degree of familiarity with certain statistical…

统计计算 · 统计学 2016-11-11 Simon Grund , Oliver Lüdtke , Alexander Robitzsch