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Evaluating Temporal Fidelity in Synthetic Time-series Electronic Health Records
Halmstad University, School of Information Technology, Center for Applied Intelligent Systems Research (CAISR).ORCID iD: 0000-0003-4221-5467
Halmstad University, School of Information Technology, Center for Applied Intelligent Systems Research (CAISR).ORCID iD: 0000-0002-0264-8762
Halmstad University, School of Information Technology, Center for Applied Intelligent Systems Research (CAISR).ORCID iD: 0000-0001-5163-2997
Halmstad University, School of Information Technology, Center for Applied Intelligent Systems Research (CAISR).ORCID iD: 0000-0003-2006-6229
2024 (English)In: 2024 IEEE Conference on Artificial Intelligence (CAI), Piscataway, NJ: IEEE, 2024, p. 541-548Conference paper, Published paper (Refereed)
Abstract [en]

Synthetic data generation has been proposed as a potential solution to accessing Electronic Health Records (EHRs) while minimizing the privacy risks associated with real EHRs. Nevertheless, the practical use of synthetic EHRs rests on their ability to resemble the quality of real EHRs. Existing evaluations of synthetic EHRs often focus on assessing them as static snapshots frozen in time, neglecting temporal dependencies and varying temporal patterns. Moreover, some of these methods rely on subjective judgments, are limited to segmentable time-series, and employ methods that adopt a one-to-one approach. This study employs a comprehensive approach to evaluating fidelity in synthetic time-series EHRs to address these challenges. We extend the functionality of time-series analysis methods such as temporal clustering, time-series similarity measures, Sample Entropy, and trend analysis, to evaluate varying temporal patterns in synthetic time-series EHRs. Our findings provide valuable insights into how synthetic EHRs align with real EHRs in the temporal context, considering aspects such as patient groupings, temporal dynamics, predictability, and directional change. We empirically demonstrate the feasibility of assessing temporal fidelity with these methods, offering an understanding of the quality of synthetic EHRs in capturing the varying temporal patterns inherent in EHRs. © 2024 IEEE.

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE, 2024. p. 541-548
Keywords [en]
Electronic Health Records (EHRs), fidelity, similarity, synthetic data, times-series
National Category
Computer and Information Sciences
Research subject
Health Innovation, IDC
Identifiers
URN: urn:nbn:se:hh:diva-54492DOI: 10.1109/CAI59869.2024.00107ISI: 001289387700097Scopus ID: 2-s2.0-85201192531ISBN: 979-8-3503-5409-6 (electronic)ISBN: 979-8-3503-5410-2 (print)OAI: oai:DiVA.org:hh-54492DiVA, id: diva2:1892181
Conference
2nd IEEE Conference on Artificial Intelligence, CAI 2024, Singapore, Singapore, 25-27 June, 2024
Note

This research is included in the CAISR Health research profile.

Available from: 2024-08-26 Created: 2024-08-26 Last updated: 2025-10-01Bibliographically approved

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Budu, EmmanuellaSoliman, AmiraRögnvaldsson, ThorsteinnEtminani, Farzaneh

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CiteExportLink to record
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