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Kolmogorov–Arnold Networks for Cross-Domain Time-Series Modeling in Health and Activity Monitoring
Proceedings of the 7th Northern Lights Deep Learning Conference (NLDL), PMLR 307:287-306, 2026.
Abstract
Time-series data from wearable sensors and clinical assessments provide complementary perspectives on human health, yet they often remain siloed across domains. This work presents a framework for harmonizing heterogeneous time-series sources at both minute and daily resolutions, extracting interpretable temporal features through techniques such as frequency-domain analysis and automated feature engineering. On top of this feature space, we benchmark conventional machine learning methods, Random Forest, Logistic Regression, Gradient Boosting, and a Transformer baseline against a proposed Kolmogorov Arnold Networks (KANs) model, which adaptively learn functional transformations tailored to complex temporal patterns. We evaluate models on tasks including activity index prediction and disorder-related classification, with a focus on transfer learning across lifestyle and clinical domains. Results indicate that KANs achieve competitive performance and offer greater interpretability of temporal dynamics than black-box architectures. The proposed framework demonstrates how modern time-series models can enable cross-domain learning and improve the understanding of physiological and behavioral health patterns.