Name
Title | ||
|---|---|---|
Extracting Personal User Context with a Three-Axis Sensor Mounted on a Freely Carried Cell Phone |
Abstract | ||
|---|---|---|
To realize ubiquitous services such as presence services and health care services, we propose an algorithm to extract "personal user context" such as user's behavior; it processes information gathered by a three-axis accelerometer mounted on a cell phone. Our algorithm has two main functions; one is to extract feature vectors by analyzing sensor data in detail by wavelet packet decomposition. The other is to flexibly cluster personal user context by combining a self-organizing algorithm with Bayesian theory. A prototype that implements the algorithm is constructed. Experiments on the prototype show that the algorithm can identify personal user contexts such as walking, running, going up/down stairs, and walking fast with an accuracy of about 88[%]. |
Year | Venue | Keywords |
|---|---|---|
2006 | SIGMAP 2006: PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND MULTIMEDIA APPLICATIONS | context extraction,sensors,cell phone,wavelet packet,Kohonen self-organizing map,ubiquitous service,accelerometer |
Field | DocType | Citations |
Computer vision,Accelerometer,Computer science,Kohonen self organizing map,Phone,Artificial intelligence | Conference | 1 |
PageRank | References | Authors |
0.40 | 1 | 2 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Toshiki Iso | 1 | 62 | 6.49 |
| Kenichi Yamazaki | 2 | 151 | 12.39 |