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Effective fraud detection and analysis of government-issued identity documents, such as passports, driver's licenses, and identity cards, are essential in thwarting identity theft and bolstering security on online platforms. The training of…

Computer Vision and Pattern Recognition · Computer Science 2024-09-05 Hong Guan , Yancheng Wang , Lulu Xie , Soham Nag , Rajeev Goel , Niranjan Erappa Narayana Swamy , Yingzhen Yang , Chaowei Xiao , Jonathan Prisby , Ross Maciejewski , Jia Zou

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.,…

Databases · Computer Science 2024-01-09 Massimo Perini , Milos Nikolic

Missing values of varying patterns and rates in real-world tabular data pose a significant challenge in developing reliable data-driven models. The most commonly used statistical and machine learning methods for missing value imputation may…

Machine Learning · Computer Science 2025-03-26 Ibna Kowsar , Shourav B. Rabbani , Yina Hou , Manar D. Samad

Missing values or data is one popular characteristic of real-world datasets, especially healthcare data. This could be frustrating when using machine learning algorithms on such datasets, simply because most machine learning models perform…

Machine Learning · Computer Science 2024-03-25 Luke Oluwaseye Joel , Wesley Doorsamy , Babu Sena Paul

Missing data imputation remains a fundamental challenge in modern data science, especially when uncertainty quantification is essential. In this work, we propose MissBGM, an AI-powered missing data imputation method via Bayesian generative…

Machine Learning · Statistics 2026-05-05 Qiao Liu

High model performance, on average, can hide that models may systematically underperform on subgroups of the data. We consider the tabular setting, which surfaces the unique issue of outcome heterogeneity - this is prevalent in areas such…

Machine Learning · Computer Science 2022-10-25 Nabeel Seedat , Jonathan Crabbé , Ioana Bica , Mihaela van der Schaar

Automated fact-checking benchmarks have largely ignored the challenge of verifying claims against real-world, high-volume structured data, instead focusing on small, curated tables. We introduce a new large-scale, multilingual dataset to…

Computation and Language · Computer Science 2026-01-27 Jacob Devasier , Akshith Putta , Qing Wang , Alankrit Moses , Chengkai Li

Handling missing data is a central challenge in data-driven analysis. Modern imputation methods not only aim for accurate reconstruction but also differ in how they represent and quantify uncertainty. Yet, the reliability and calibration of…

Databases · Computer Science 2025-11-27 Zarin Tahia Hossain , Mostafa Milani

Synthetic data serves as an alternative in training machine learning models, particularly when real-world data is limited or inaccessible. However, ensuring that synthetic data mirrors the complex nuances of real-world data is a challenging…

Machine Learning · Computer Science 2023-10-27 Lasse Hansen , Nabeel Seedat , Mihaela van der Schaar , Andrija Petrovic

\Multiple imputation (MI) is a popular and well-established method for handling missing data in multivariate data sets, but its practicality for use in massive and complex data sets has been questioned. One such data set is the Panel Study…

Generative models play an important role in missing data imputation in that they aim to learn the joint distribution of full data. However, applying advanced deep generative models (such as Diffusion models) to missing data imputation is…

Machine Learning · Computer Science 2025-05-27 Hengrui Zhang , Liancheng Fang , Qitian Wu , Philip S. Yu

Classifying samples in incomplete datasets is a common aim for machine learning practitioners, but is non-trivial. Missing data is found in most real-world datasets and these missing values are typically imputed using established methods,…

Data missingness is a practical challenge of sustained interest to the scientific community. In this paper, we present Shades-of-Null, an evaluation suite for responsible missing value imputation. Our work is novel in two ways (i) we model…

Artificial Intelligence · Computer Science 2025-07-22 Falaah Arif Khan , Denys Herasymuk , Nazar Protsiv , Julia Stoyanovich

Datasets with missing values are very common on industry applications, and they can have a negative impact on machine learning models. Recent studies introduced solutions to the problem of imputing missing values based on deep generative…

Machine Learning · Computer Science 2019-02-28 Ramiro D. Camino , Christian A. Hammerschmidt , Radu State

Synthetic tabular data enables sharing and analysis of sensitive records, but its practical deployment requires balancing distributional fidelity, downstream utility, and privacy protection. We study a simple, model agnostic post processing…

Machine Learning · Computer Science 2026-02-09 David Yavo , Richard Khoury , Christophe Pere , Sadoune Ait Kaci Azzou

Machine learning risks reinforcing biases present in data and, as we argue in this work, in what is absent from data. In healthcare, societal and decision biases shape patterns in missing data, yet the algorithmic fairness implications of…

Artificial Intelligence · Computer Science 2025-03-19 Vincent Jeanselme , Maria De-Arteaga , Zhe Zhang , Jessica Barrett , Brian Tom

Synthetic healthcare data generation presents a viable approach to enhance data accessibility and support research by overcoming limitations associated with real-world medical datasets. However, ensuring fairness across protected attributes…

Machine Learning · Computer Science 2025-11-04 Sama Salarian , Yue Zhang , Swati Padhee , Srinivasan Parthasarathy

Traditionally, the detection of fraudulent insurance claims relies on business rules and expert judgement which makes it a time-consuming and expensive process (\'Oskarsd\'ottir et al., 2022). Consequently, researchers have been examining…

Machine Learning · Computer Science 2024-10-08 Bavo D. C. Campo , Katrien Antonio

Synthetic data is increasingly used to support research without exposing sensitive user content. Social media data is one of the types of datasets that would hugely benefit from representative synthetic equivalents that can be used to…

Cryptography and Security · Computer Science 2026-03-06 Henry Tari , Adriana Iamnitchi

The current literature regarding generation of complex, realistic synthetic tabular data, particularly for randomized controlled trials (RCTs), often ignores missing data. However, missing data are common in RCT data and often are not…

Other Statistics · Statistics 2025-12-02 Niki Z. Petrakos , Erica E. M. Moodie , Nicolas Savy