Phone Activity Recognition

Sensor parameters description for [PHONE_ACTIVITY_RECOGNITION]:

Key	Description
[CONTAINER][ANDROID]	Data stream container (database table, CSV file, etc.) where the activity data from Android devices is stored (the AWARE client saves this data on different tables for Android and iOS)
[CONTAINER][IOS]	Data stream container (database table, CSV file, etc.) where the activity data from iOS devices is stored (the AWARE client saves this data on different tables for Android and iOS)
[EPISODE_THRESHOLD_BETWEEN_ROWS]	Difference in minutes between any two rows for them to be considered part of the same activity episode

RAPIDS provider

Available time segments and platforms

• Available for all time segments
• Available for Android and iOS

File Sequence

- data/raw/{pid}/phone_activity_recognition_raw.csv
- data/raw/{pid}/phone_activity_recognition_with_datetime.csv
- data/interim/{pid}/phone_activity_recognition_episodes.csv
- data/interim/{pid}/phone_activity_recognition_episodes_resampled.csv
- data/interim/{pid}/phone_activity_recognition_episodes_resampled_with_datetime.csv
- data/interim/{pid}/phone_activity_recognition_features/phone_activity_recognition_{language}_{provider_key}.csv
- data/processed/features/{pid}/phone_activity_recognition.csv

Parameters description for [PHONE_ACTIVITY_RECOGNITION][PROVIDERS][RAPIDS]:

Key	Description
[COMPUTE]	Set to True to extract PHONE_ACTIVITY_RECOGNITION features from the RAPIDS provider
[FEATURES]	Features to be computed, see table below
[ACTIVITY_CLASSES][STATIONARY]	An array of the activity labels to be considered in the STATIONARY category choose any of still, tilting
[ACTIVITY_CLASSES][MOBILE]	An array of the activity labels to be considered in the MOBILE category choose any of on_foot, walking, running, on_bicycle
[ACTIVITY_CLASSES][VEHICLE]	An array of the activity labels to be considered in the VEHICLE category choose any of in_vehicule

Features description for [PHONE_ACTIVITY_RECOGNITION][PROVIDERS][RAPIDS]:

Feature	Units	Description
count	rows	Number of episodes.
mostcommonactivity	activity type	The most common activity type (e.g. still, on_foot, etc.). If there is a tie, the first one is chosen.
countuniqueactivities	activity type	Number of unique activities.
durationstationary	minutes	The total duration of [ACTIVITY_CLASSES][STATIONARY] episodes of still and tilting activities
durationmobile	minutes	The total duration of [ACTIVITY_CLASSES][MOBILE] episodes of on foot, running, and on bicycle activities
durationvehicle	minutes	The total duration of [ACTIVITY_CLASSES][VEHICLE] episodes of on vehicle activity

Assumptions/Observations

1. iOS Activity Recognition names and types are unified with Android labels:

   iOS Activity Name	Android Activity Name	Android Activity Type
   walking	walking	7
   running	running	8
   cycling	on_bicycle	1
   automotive	in_vehicle	0
   stationary	still	3
   unknown	unknown	4

2. In AWARE, Activity Recognition data for Android and iOS are stored in two different database tables, RAPIDS automatically infers what platform each participant belongs to based on their participant file.