A Leakage-Controlled Evaluation of Multimodal Sensor Fusion for Wrist-Worn Glucose Estimation
Wrist worn wearables are widely proposed as non-invasive glucose sensors, and studies on public multimodal datasets report accuracies that appear to support the claim. We revisit it under strictly leakage-controlled evaluation. Using the BIG IDEAs Lab Glycemic Variability and Wearable Device dataset (15 participants; D...