Name
Abstract | ||
|---|---|---|
New generation mobile devices have become inevitable to be employed within the realm of ubiquitous sensing. Especially, smartphones have been increasingly used for Human Activity Recognition (HAR) based studies. It is believed that recognizing human-centric activity patterns accurately enough could give a better understanding of human behaviors. Further, such ability could give a chance for assisting individuals in order to enhance the quality of lives. However, the integration and realization of HAR based mobile services stand as a significant challenge on resourceconstrained mobile embedded platforms. In this manner, this paper proposes a novel Discrete Time Inhomogeneous Hidden Semi-Markov Model (DT-IHS-MM) based generic framework to address a better realization of HAR based mobile contextawareness. In addition, we utilize power efficient sensor management strategies by providing three intuitive methods, and Constrained Markov Decision Process (CMDP) and Partially Observable Markov Decision Process (POMDP) based optimal methods. Moreover, a feedback control mechanism is integrated to balance the tradeoff between accuracy in context inference and power consumption. In conclusion, the proposed sensor management methods achieve a 40% overall enhancement in the power consumption caused by the physical sensor with respect to overall 85-90% accuracy ratio thanks to the provided adaptive context inference framework. |
Year | DOI | Venue |
|---|---|---|
2015 | 10.1109/TVT.2014.2364619 | Vehicular Technology, IEEE Transactions |
Keywords | Field | DocType |
context-aware framework,human activity recognition,optimal sensing,power efficiency,sensors,energy conservation,accuracy,feedback control,hidden markov models,markov processes,entropy | Markov process,Activity recognition,Partially observable Markov decision process,Computer science,Inference,Markov decision process,Computer network,Real-time computing,Mobile device,Human–computer interaction,Human behavior,Hidden Markov model | Journal |
Volume | Issue | ISSN |
PP | 99 | 0018-9545 |
Citations | PageRank | References |
2 | 0.38 | 18 |
Authors | ||
6 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Ozgur Yurur | 1 | 90 | 4.49 |
| Chi Harold Liu | 2 | 1091 | 72.90 |
| charith perera | 3 | 65 | 3.03 |
| Min Chen | 4 | 1121 | 62.51 |
| Xue Liu | 5 | 3058 | 193.41 |
| Wilfrido A. Moreno | 6 | 171 | 17.43 |