WiFiTuned: Monitoring Engagement in Online Participation by Harmonizing WiFi and Audio

This paper proposes a multi-modal, non-intrusive and privacy preserving system WiFiTuned for monitoring engagement in online participation i.e., meeting/classes/seminars. It uses two sensing modalities i.e., WiFi CSI and audio for the same. WiFiTuned detects the head movements of participants during online participation through WiFi CSI and detects the speaker’s intent through audio. Then it correlates the two to detect engagement. We evaluate WiFiTuned with 22 participants and observe that it can detect the engagement level with an average accuracy of more than .