Patchwork Learning: A Paradigm Towards Integrative Analysis across Diverse Biomedical Data Sources

• URL: http://arxiv.org/abs/2305.06217v2
• Date: Sat, 13 May 2023 12:33:05 GMT
• Title: Patchwork Learning: A Paradigm Towards Integrative Analysis across Diverse Biomedical Data Sources
• Authors: Suraj Rajendran, Weishen Pan, Mert R. Sabuncu, Yong Chen, Jiayu Zhou, Fei Wang
• Abstract summary: "patchwork learning" (PL) is a paradigm that integrates information from disparate datasets composed of different data modalities. PL allows the simultaneous utilization of complementary data sources while preserving data privacy. We present the concept of patchwork learning and its current implementations in healthcare, exploring the potential opportunities and applicable data sources.
• Score: 40.32772510980854
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Machine learning (ML) in healthcare presents numerous opportunities for enhancing patient care, population health, and healthcare providers' workflows. However, the real-world clinical and cost benefits remain limited due to challenges in data privacy, heterogeneous data sources, and the inability to fully leverage multiple data modalities. In this perspective paper, we introduce "patchwork learning" (PL), a novel paradigm that addresses these limitations by integrating information from disparate datasets composed of different data modalities (e.g., clinical free-text, medical images, omics) and distributed across separate and secure sites. PL allows the simultaneous utilization of complementary data sources while preserving data privacy, enabling the development of more holistic and generalizable ML models. We present the concept of patchwork learning and its current implementations in healthcare, exploring the potential opportunities and applicable data sources for addressing various healthcare challenges. PL leverages bridging modalities or overlapping feature spaces across sites to facilitate information sharing and impute missing data, thereby addressing related prediction tasks. We discuss the challenges associated with PL, many of which are shared by federated and multimodal learning, and provide recommendations for future research in this field. By offering a more comprehensive approach to healthcare data integration, patchwork learning has the potential to revolutionize the clinical applicability of ML models. This paradigm promises to strike a balance between personalization and generalizability, ultimately enhancing patient experiences, improving population health, and optimizing healthcare providers' workflows.

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