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rapids/docs/features/phone-activity-recognition.md

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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

!!! info "Available time segments and platforms" - Available for all time segments - Available for Android and iOS

!!! info "File Sequence" bash - 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

!!! note "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](../../setup/configuration/#participant-files).