| contextID |
User-EMA identifier, intended to link between EMA tables. However some EMAs are associated with more than one contextID. |
| userID |
User identifier; assigned gmail account |
| engaged_time |
Date-time string (yyyy-MM-dd HH:mm:ss) for the EMA engagement time |
| interaction_count |
Number of times the screen was turned on between EMA notification and EMA interaction |
| calendar |
Calendar busyness ("free" or "busy") up to 60 minutes from EMA notification |
| recognized_activity |
Google Activity Recognition result; the Detected Activity type with the highest confidence level, evaluated within 90 seconds of EMA engagement |
| valid |
Indicator ("true" or "false") that the Google Activity Recognition result is valid. If "false", the detected activity should be looked up from EMA_Context_Notified. calendar |
| gps_coordinate |
GPS coordinate (latitude_longitude) giving the location at the time of engagement |
| city |
City name corresponding to the GPS coordinate |
| location_category |
Location category ("work", "home" or the Google Place Type) based on the GPS coordinate |
| distance |
Distance in meters from the location category |
| home |
GPS coordinate (latitude_longitude) the home address |
| work |
GPS coordinate (latitude_longitude) the work address |
| weather_condition |
Current weather condition classification from Weather Underground's API, based on the GPS coordinate |
| temperature |
Temperature in celsius, based on the GPS coordinate |
| windspeed |
Wind speed in miles per hour, based on the GPS coordinate |
| precipitation_chance |
Precipitation chance (between 0 and 100) up to 60 minutes from EMA engagement, based on the GPS coordinate |
| snow |
Snowfall in millimeters, based on the GPS coordinate |