Analyzing Participants' Engagement during Online Meetings Using Unsupervised Remote Photoplethysmography with Behavioral Features.
Alexander VedernikovZhaodong SunVirpi-Liisa KykyriMikko PohjolaMiriam NokiaXiaobai LiPublished in: CoRR (2024)
Keyphrases
- real time
- feature vectors
- feature extraction
- face to face meetings
- online learning
- image features
- classification accuracy
- spatial information
- false positives
- unsupervised learning
- supervised learning
- low level
- object recognition
- semi supervised
- unsupervised manner
- unsupervised feature selection
- undergraduate students
- human behavior
- learning environment
- feature selection
- machine learning