Phone Keyboard¶
Sensor parameters description for [PHONE_KEYBOARD]:
| Key | Description |
|---|---|
[CONTAINER] |
Data stream container (database table, CSV file, etc.) where the keyboard data is stored |
File Sequence
- data/raw/{pid}/phone_keyboard_raw.csv
- data/raw/{pid}/phone_keyboard_with_datetime.csv
- data/interim/{pid}/phone_keyboard_features/phone_keyboard_{language}_{provider_key}.csv
- data/processed/features/{pid}/phone_keyboard.csv
Features description for [PHONE_KEYBOARD]:
| Feature | Units | Description |
|---|---|---|
| sessioncount | - | Number of typing sessions in a time segment. A session begins with any keypress and finishes until 5 seconds have elapsed since the last key was pressed or the application that the user was typing on changes. |
| averagesessionlength | milliseconds | Average length of all sessions in a time segment instance |
| averageinterkeydelay | milliseconds | The average time between keystrokes measured in milliseconds. |
| changeintextlengthlessthanminusone | Number of times a keyboard typing or swiping event changed the length of the current text to less than one fewer character. | |
| changeintextlengthequaltominusone | Number of times a keyboard typing or swiping event changed the length of the current text in exactly one fewer character. | |
| changeintextlengthequaltoone | Number of times a keyboard typing or swiping event changed the length of the current text in exactly one more character. | |
| changeintextlengthmorethanone | Number of times a keyboard typing or swiping event changed the length of the current text to more than one character. | |
| maxtextlength | Length in characters of the longest sentence(s) contained in the typing text box of any app during the time segment. | |
| lastmessagelength | Length of the last text in characters of the sentence(s) contained in the typing text box of any app during the time segment. | |
| totalkeyboardtouches | Average number of typing events across all sessions in a time segment instance. |
Note
We did not find a reliable way to distinguish between AutoCorrect or AutoComplete changes, since both can be applied with a single touch or swipe event and can decrease or increase the length of the text by an arbitrary number of characters.