THE ACTIVITY RECOGNITION TASK
Data Collection
In order to collect data for our supervised learning task, it was
necessary to have a large number of users carry an Android-based
smart phone while performing certain everyday activities. Before
collecting this data, we obtained approval from the Fordham University
IRB (Institutional Review Board) since the study involved
“experimenting” on human subjects and there was some risk of
harm (e.g., the subject could trip while jogging or climbing
stairs). We then enlisted the help of twenty-nine volunteer subjects
to carry a smart phone while performing a specific set of
activities. These subjects carried the Android phone in their front
pants leg pocket and were asked to walk, jog, ascend stairs, descend
stairs, sit, and stand for specific periods of time.