SWEET - Crowd Emotion Monitor

SWEET uses sensing, event processing, reasoning and data communication technologies to assess the behavior andemotion of a group of people, visualize that information in an intuitive manner, and guide you to locations of particular interest. We hope that the SWEET app will enhance your experience of the conference and inspire you to think of other applications of this technology.

SWEET assesses your emotion and that of the people around you by capturing facial expressions and subjective feedback. Data from all participants are transmitted to the SWEET server. By combining emotional information with the spatial location of each sample, SWEET creates a map of the event, pointing out hotspots of positive or negative emotions.

SWEET is in an experimental stage: it is work in progress, which means not all functionality has been completed and the software may contain bugs. We love to hear your feedback! Please let us know what you think of this tool and its applications. Drop us a note at noldusnbd@gmail.com. If you need any help, please visit the SWEET desk in the "Terraszaal" on the first floor.


Technical information
SWEET requires a WiFi connection. It automatically connects to the "sweet" WiFi network whenever it is available.


Privacy statement
No personal information is stored.

All images being taken are temporary and privately stored on the device and are only accessible by the SWEET app. After feature extraction, the images are automatically deleted.

All audio recordings are kept privately on the device and are only accessible by the SWEET app. After analysis the recordings are removed from the device.


Permissions
- android.permission.RECEIVE_BOOT_COMPLETED
This permission is used in order to have the application started automatically whenever your device restarts.
-android.permission.INTERNET
This permission is only used to communicate with the other components within the SWEET system.
- android.permission.ACCESS_WIFI_STATE
This permission is used to request the MAC address of the WiFi sensor of your device. This is used in combination with the location tracking.
- android.permission.VIBRATE
This permission is used to vibrate the device for a short period of time to inform you about a small task that is waiting for you.
- android.permission.SYSTEM_ALERT_WINDOW
This permission is used to inform you about some error that occured in the app.
- android.permission.CAMERA
This permission is used for taking pictures of you and the people around you. The SWEET system will analyze the facial expression of the people in the picture and assess their current emotion. The pictures have to be taken manually by you and are not done automatically by the app.
- android.permission.RECORD_AUDIO
This permission is used to record sound changes in your environment. The SWEET system will analyze the current emotion in the environment.
- android.permission.CHANGE_WIFI_STATE
This permission is used to force a connection to the SWEET network.
- android.permission.ACCESS_NETWORK_STATE
This permission is used to check the WiFi state.