Activity tracking and classification for diabetes management system, apparatus, and method

An activity tracking and classification apparatus comprising:

• an interface configured to receive, from an application operating on a user device, lifelog data;
• a memory device storing a plurality of common daily activity models for respective patients;
• and
• a processor communicatively coupled to the interface and the memory device and configured to:
• assign and synchronize the lifelog data to atomic intervals based on a time the lifelog data occurred or was recorded by the application operating on the user device,
• segment the atomic intervals into daily activity intervals of first-level activities by determining if consecutive atomic intervals have a similar pattern of physical activity using at least a portion of the lifelog data,
• select a common daily activity model from the memory device that corresponds to a patient of the user device,
• perform second-level activity recognition for each of the daily activity intervals using the selected common daily activity model, and
• generate, for display at the user device or a clinician device, a personal chronical of the recognized second-level activities.