Title
Activity and device position recognition in mobile devices
Abstract
Activity recognition along with device position recognition can provide contextual cues suitable to infer user interruptibility and device accessibility. Our system fuses data from accelerometer and multiple light sensors to classify activities and device positions. Previously published results achieve robust activity recognition performance with multiple sensors attached to fixed body positions, a model suitable for use cases such as healthcare and fitness. We achieve comparable activity recognition performance using smartphones placed in unknown on-body positions including pocket, holster and hand. Results obtained from a diverse data set show that motion state and device position are classified with macro-averaged f-scores 92.6% and 66.8% respectively, over six activities and seven device positions. We demonstrate the performance of our classifier with an implementation running on the Android platform, that visitors can try out.
Year
DOI
Venue
2011
10.1145/2030112.2030228
UbiComp
Keywords
Field
DocType
fixed body position,multiple light sensor,device accessibility,mobile device,robust activity recognition performance,comparable activity recognition performance,device position,activity recognition,device position recognition,multiple sensor,diverse data,use case,sensor fusion
Computer science,Human–computer interaction,Artificial intelligence,Classifier (linguistics),Fuse (electrical),Computer vision,Activity recognition,Android (operating system),Accelerometer,Simulation,Context awareness,Sensor fusion,Mobile device
Conference
Citations 
PageRank 
References 
2
0.39
9
Authors
5
Name
Order
Citations
PageRank
Leonard Grokop1726.55
Anthony Sarah220.39
Chris Brunner3331.93
Vidya Narayanan4515.05
Sanjiv Nanda5252107.22