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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

Missing data present challenges in data analysis. Naive analyses such as complete-case and available-case analysis may introduce bias and loss of efficiency, and produce unreliable results. Multiple imputation (MI) is one of the most widely…

统计方法学 · 统计学 2019-05-15 Domonique W. Hodge , Sandra E. Safo , Qi Long

Missing values are pervasive in real-world tabular data and can significantly impair downstream analysis. Imputing them is especially challenging in text-rich tables, where dependencies are implicit, complex, and dispersed across long…

数据库 · 计算机科学 2026-05-12 Soroush Omidvartehrani , Davood Rafiei

Masked autoencoders (MAEs) have recently demonstrated effectiveness in tabular data imputation. However, due to the inherent heterogeneity of tabular data, the uniform random masking strategy commonly used in MAEs can disrupt the…

机器学习 · 计算机科学 2024-12-30 Jungkyu Kim , Kibok Lee , Taeyoung Park

Many datasets suffer from missing values due to various reasons,which not only increases the processing difficulty of related tasks but also reduces the accuracy of classification. To address this problem, the mainstream approach is to use…

机器学习 · 计算机科学 2024-08-14 Cong Guo , Chun Liu , Wei Yang

Detecting semantic concept of columns in tabular data is of particular interest to many applications ranging from data integration, cleaning, search to feature engineering and model building in machine learning. Recently, several works have…

人工智能 · 计算机科学 2020-12-17 Udayan Khurana , Sainyam Galhotra

Given the prevalence of missing data in modern statistical research, a broad range of methods is available for any given imputation task. How does one choose the `best' imputation method in a given application? The standard approach is to…

应用统计 · 统计学 2022-12-01 Jeffrey Näf , Meta-Lina Spohn , Loris Michel , Nicolai Meinshausen

International comparisons of hierarchical time series data sets based on survey data, such as annual country-level estimates of school enrollment rates, can suffer from large amounts of missing data due to differing coverage of surveys…

统计方法学 · 统计学 2025-03-31 Daphne H. Liu , Adrian E. Raftery

Missing values widely exist in many real-world datasets, which hinders the performing of advanced data analytics. Properly filling these missing values is crucial but challenging, especially when the missing rate is high. Many approaches…

机器学习 · 计算机科学 2018-08-07 Hongbao Zhang , Pengtao Xie , Eric Xing

Missing data are ubiquitous in empirical databases, yet statistical analyses typically require complete data matrices. Multiple imputation offers a principled solution for filling these gaps. This study evaluates the performance of several…

统计计算 · 统计学 2026-02-05 Enzo Porto Brasil

In many machine learning applications, we are faced with incomplete datasets. In the literature, missing data imputation techniques have been mostly concerned with filling missing values. However, the existence of missing values is…

机器学习 · 计算机科学 2020-09-07 Mohammad Kachuee , Kimmo Karkkainen , Orpaz Goldstein , Sajad Darabi , Majid Sarrafzadeh

Imputing missing values is an important preprocessing step in data analysis, but the literature offers little guidance on how to choose between different imputation models. This letter suggests adopting the imputation model that generates a…

统计方法学 · 统计学 2021-07-13 Moritz Marbach

Deep Learning (DL) methods have dramatically increased in popularity in recent years. While its initial success was demonstrated in the classification and manipulation of image data, there has been significant growth in the application of…

机器学习 · 计算机科学 2022-06-22 David K. Lim , Naim U. Rashid , Junier B. Oliva , Joseph G. Ibrahim

Recent advances in Explainable AI (XAI) increased the demand for deployment of safe and interpretable AI models in various industry sectors. Despite the latest success of deep neural networks in a variety of domains, understanding the…

机器学习 · 计算机科学 2022-10-04 Timur Sattarov , Dayananda Herurkar , Jörn Hees

Missing values are a fundamental problem in data science. Many datasets have missing values that must be properly handled because the way missing values are treated can have large impact on the resulting machine learning model. In medical…

机器学习 · 计算机科学 2023-04-25 Zhi Chen , Sarah Tan , Urszula Chajewska , Cynthia Rudin , Rich Caruana

Handling missing values in tabular datasets presents a significant challenge in training and testing artificial intelligence models, an issue usually addressed using imputation techniques. Here we introduce "Not Another Imputation Method"…

机器学习 · 计算机科学 2026-03-13 Camillo Maria Caruso , Paolo Soda , Valerio Guarrasi

Healthcare data frequently contain a substantial proportion of missing values, necessitating effective time series imputation to support downstream disease diagnosis tasks. However, existing imputation methods focus on discrete data points…

机器学习 · 计算机科学 2025-05-19 Mengxuan Li , Ke Liu , Jialong Guo , Jiajun Bu , Hongwei Wang , Haishuai Wang

Multivariate time-series data are used in many classification and regression predictive tasks, and recurrent models have been widely used for such tasks. Most common recurrent models assume that time-series data elements are of equal length…

机器学习 · 计算机科学 2020-09-21 Mehak Gupta , Rahmatollah Beheshti

Missing data is a widespread problem in many domains, creating challenges in data analysis and decision making. Traditional techniques for dealing with missing data, such as excluding incomplete records or imputing simple estimates (e.g.,…

数据库 · 计算机科学 2024-01-09 Massimo Perini , Milos Nikolic

Missing data in online reinforcement learning (RL) poses challenges compared to missing data in standard tabular data or in offline policy learning. The need to impute and act at each time step means that imputation cannot be put off until…

机器学习 · 统计学 2025-10-14 Kyla Chasalow , Skyler Wu , Susan Murphy