Keyphrases
- automatic classification
- online teaching
- higher education
- online learning
- open educational resources
- distance learning
- distance education
- blended learning
- automatic detection
- information sharing
- training set
- automatically classify
- learning technologies
- language learning
- online course
- knn
- web based teaching
- feature selection
- discussion forums
- high school
- knowledge sharing
- online learning environments
- computer mediated communication
- learning management systems