Fast and Reliable Generation of EHR Time Series via Diffusion Models
Keywords: electronic health record data, synthetic data, diffusion model, generative model
TL;DR: We apply diffusion models to generate realistic synthetic EHR time-series data
Abstract: Electronic Health Records (EHRs) are rich sources of patient-level data, including laboratory tests, medications, and diagnoses, offering valuable resources for medical data analysis. However, concerns about privacy often restrict access to EHRs, hindering downstream analysis. Researchers have explored various methods for generating privacy-preserving EHR data. In this study, we introduce a new method for generating diverse and realistic synthetic EHR time-series data using Denoising Diffusion Probabilistic Models (DDPM). We conducted experiments on six datasets, comparing our proposed method with seven existing methods. Our results demonstrate that our approach significantly outperforms all existing methods in terms of data utility while requiring less training effort. Our approach also enhances downstream medical data analysis by providing diverse and realistic synthetic EHR data.
Primary Area: applications to physical sciences (physics, chemistry, biology, etc.)
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Submission Number: 6531
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