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Background: Existing guidelines for handling missing data are generally not consistent with the goals of prediction modelling, where missing data can occur at any stage of the model pipeline. Multiple imputation (MI), often heralded as the…

统计方法学 · 统计学 2022-06-27 Rose Sisk , Matthew Sperrin , Niels Peek , Maarten van Smeden , Glen P. Martin

Missing data remains a very common problem in large datasets, including survey and census data containing many ordinal responses, such as political polls and opinion surveys. Multiple imputation (MI) is usually the go-to approach for…

统计方法学 · 统计学 2024-12-25 Chayut Wongkamthong , Olanrewaju Akande

Missing data is a common problem in machine learning and in retrospective imaging research it is often encountered in the form of missing imaging modalities. We propose to take into account missing modalities in the design and training of…

计算机视觉与模式识别 · 计算机科学 2019-09-26 Karin van Garderen , Marion Smits , Stefan Klein

Missing data are inevitable in clinical trials, and trials that produce categorical ordinal responses are not exempted from this. Typically, missing values in the data occur due to different missing mechanisms, such as missing completely at…

统计方法学 · 统计学 2025-05-09 Arnab Kumar Maity , Huaming Tan , Vivek Pradhan , Soutir Bandyopadhyay

In various biomedical studies, analysis often focuses on data magnitudes, particularly when algebraic signs are irrelevant or lost. For repeated measures studies involving magnitude outcomes, incorporating random effects is essential as…

统计方法学 · 统计学 2025-07-16 Wen Teng , Niall D. Ferguson , Ewan C. Goligher , Anna Heath

Fusing multi-modal data can improve the performance of deep learning models. However, missing modalities are common for medical data due to patients' specificity, which is detrimental to the performance of multi-modal models in…

图像与视频处理 · 电气工程与系统科学 2023-09-28 Muyu Wang , Shiyu Fan , Yichen Li , Hui Chen

Multimodal learning typically relies on the assumption that all modalities are fully available during both the training and inference phases. However, in real-world scenarios, consistently acquiring complete multimodal data presents…

计算机视觉与模式识别 · 计算机科学 2024-07-18 Donggeun Kim , Taesup Kim

Multi-modal medical image completion has been extensively applied to alleviate the missing modality issue in a wealth of multi-modal diagnostic tasks. However, for most existing synthesis methods, their inferences of missing modalities can…

图像与视频处理 · 电气工程与系统科学 2022-07-08 Xiangxi Meng , Yuning Gu , Yongsheng Pan , Nizhuan Wang , Peng Xue , Mengkang Lu , Xuming He , Yiqiang Zhan , Dinggang Shen

Multimodal deep learning has shown strong potential in medical applications by integrating heterogeneous data sources such as medical images and structured clinical variables. However, most existing approaches implicitly assume complete…

机器学习 · 计算机科学 2026-05-13 Camillo Maria Caruso , Valerio Guarrasi , Paolo Soda

Missing data is a common problem in real-world settings and particularly relevant in healthcare applications where researchers use Electronic Health Records (EHR) and results of observational studies to apply analytics methods. This issue…

机器学习 · 统计学 2018-12-04 Dimitris Bertsimas , Agni Orfanoudaki , Colin Pawlowski

Diffusion models have emerged as powerful generative approaches for missing-data imputation, yet most existing methods operate directly in data space and degrade when training data are heavily incomplete. We investigate whether shifting…

机器学习 · 计算机科学 2026-05-28 Alberte Heering Estad , Ignacio Peis , Jes Frellsen

This study proposes a novel approach combining Multimodal Deep Learning with intrinsic eXplainable Artificial Intelligence techniques to predict pathological response in non-small cell lung cancer patients undergoing neoadjuvant therapy.…

Brain tumor segmentation is often based on multiple magnetic resonance imaging (MRI). However, in clinical practice, certain modalities of MRI may be missing, which presents an even more difficult scenario. To cope with this challenge,…

图像与视频处理 · 电气工程与系统科学 2025-01-16 Tianyi Liu , Zhaorui Tan , Haochuan Jiang , Xi Yang , Kaizhu Huang

Cancer prognosis and survival outcome predictions are crucial for therapeutic response estimation and for stratifying patients into various treatment groups. Medical domains concerned with cancer prognosis are abundant with multiple…

图像与视频处理 · 电气工程与系统科学 2024-02-29 Ruining Deng , Nazim Shaikh , Gareth Shannon , Yao Nie

Accurate segmentation of brain tumors from magnetic resonance imaging (MRI) is clinically relevant in diagnoses, prognoses and surgery treatment, which requires multiple modalities to provide complementary morphological and physiopathologic…

图像与视频处理 · 电气工程与系统科学 2021-06-30 Yixin Wang , Yang Zhang , Yang Liu , Zihao Lin , Jiang Tian , Cheng Zhong , Zhongchao Shi , Jianping Fan , Zhiqiang He

Federated Learning (FL) is a method for training machine learning models using distributed data sources. It ensures privacy by allowing clients to collaboratively learn a shared global model while storing their data locally. However, a…

Missing data is a systemic problem in practical scenarios that causes noise and bias when estimating treatment effects. This makes treatment effect estimation from data with missingness a particularly tricky endeavour. A key reason for this…

机器学习 · 统计学 2023-02-27 Jeroen Berrevoets , Fergus Imrie , Trent Kyono , James Jordon , Mihaela van der Schaar

In this study, we introduce a sophisticated generative conditional strategy designed to impute missing values within datasets, an area of considerable importance in statistical analysis. Specifically, we initially elucidate the theoretical…

机器学习 · 统计学 2026-01-05 George Sun , Yi-Hui Zhou

We developed a new joint probabilistic segmentation and image distribution matching generative adversarial network (PSIGAN) for unsupervised domain adaptation (UDA) and multi-organ segmentation from magnetic resonance (MRI) images. Our UDA…

图像与视频处理 · 电气工程与系统科学 2021-07-20 Jue Jiang , Yu Chi Hu , Neelam Tyagi , Andreas Rimner , Nancy Lee , Joseph O. Deasy , Sean Berry , Harini Veeraraghavan

Multimodal pathology-genomic analysis has become increasingly prominent in cancer survival prediction. However, existing studies mainly utilize multi-instance learning to aggregate patch-level features, neglecting the information loss of…

计算机视觉与模式识别 · 计算机科学 2025-05-21 Mingcheng Qu , Guang Yang , Donglin Di , Tonghua Su , Yue Gao , Yang Song , Lei Fan