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](../../datastreams/data-streams-introduction/) (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](../../datastreams/data-streams-introduction/) (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).