LayeredSense: Hierarchical Recognition of Complex Daily Activities Using Wearable Sensors

Daily activity recognition has gained prominence due to its applications in context-aware computing. Current methods primarily rely on supervised learning for detecting simple, repetitive activities. This paper introduces LayeredSense, a novel framework designed to recognize complex activities by decomposing them into smaller, easily identifiable unit patterns. Utilizing a Myo armband for data collection, the system processes inertial measurement unit (IMU) data to identify basic actions like walking, running, and jumping. These actions are then aggregated to infer more intricate activities such as playing sports or working. LayeredSense employs Gaussian Mixture Models for new pattern detection and machine learning algorithms, including Random Forests, for real-time activity recognition. the system demonstrates high accuracy in identifying both unit patterns and complex activities, providing a scalable solution for comprehensive daily activity monitoring.