Identifying Unresolved Issues in Online Student Discussions: A Multi-Phase Dialogue Classification Approach.
Jihie KimTaehwan KimJia LiPublished in: AIED (2009)
Keyphrases
- pattern recognition
- classification accuracy
- discussion forums
- online learning
- training phase
- classification algorithm
- support vector machine
- text classification
- machine learning
- support vector
- training set
- preprocessing phase
- intelligent tutoring systems
- student learning
- learning phase
- threaded discussions
- online discussion
- classification method
- feature selection