Federated mobile activity recognition using a smart service adapter for cloud offloading

Abstract

Mobile based activity recognition is gaining importance with the ever increasing sensing, communication and computational power of smart phones. Our work addresses the current key challenges in the field of mobile sensing - how to make continuous sensing mobile applications both efficient and scalable. We motivate our work with a smart context-aware e-health application. Activities of daily living are modeled using a hidden Markov model and the classified activities are used to adapt sensing and feature extraction to decrease the energy consumption on the mobile. We present a federated context-management framework for activity recognition which implements a smart service adapter to offload execution to the cloud to achieve scalability and efficiency. © 2012 Springer Science+Business Media.