Missing Data in Signal Processing and Machine Learning: Models, Methods and Modern Approaches

• URL: http://arxiv.org/abs/2506.01696v2
• Date: Tue, 03 Jun 2025 16:12:45 GMT
• Title: Missing Data in Signal Processing and Machine Learning: Models, Methods and Modern Approaches
• Authors: Alexandre Hippert-Ferrer, Aude Sportisse, Amirhossein Javaheri, Mohammed Nabil El Korso, Daniel P. Palomar,
• Abstract summary: This tutorial aims to provide signal processing (SP) and machine learning (ML) practitioners with vital tools to answer the question: How to deal with missing data?
• Score: 49.431846265898486
• License: http://creativecommons.org/publicdomain/zero/1.0/
• Abstract: This tutorial aims to provide signal processing (SP) and machine learning (ML) practitioners with vital tools, in an accessible way, to answer the question: How to deal with missing data? There are many strategies to handle incomplete signals. In this paper, we propose to group these strategies based on three common tasks: i) missing-data imputation, ii) estimation with missing values and iii) prediction with missing values. We focus on methodological and experimental results through specific case studies on real-world applications. Promising and future research directions, including a better integration of informative missingness, are also discussed. We hope that the proposed conceptual framework and the presentation of recent missing-data problems related will encourage researchers of the SP and ML communities to develop original methods and to efficiently deal with new applications involving missing data.

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