Dual-feature-embeddings-based semi-supervised learning for cognitive engagement classification in online course discussions.
Zhi LiuWeizheng KongXian PengZongkai YangSannyuya LiuShiqi LiuChaodong WenPublished in: Knowl. Based Syst. (2023)
Keyphrases
- semi supervised learning
- supervised learning
- semi supervised classification
- online course
- semi supervised
- machine learning
- co training
- labeled data
- unlabeled data
- unsupervised learning
- semi supervised learning algorithms
- labeled and unlabeled data
- feature vectors
- class labels
- active learning
- text classification
- online learning
- classification accuracy
- feature set
- decision trees
- transfer learning
- training data
- collaborative learning
- learning styles
- feature selection
- dimensionality reduction
- learning environment
- discussion forums
- feature extraction
- cognitive engagement
- feature space
- statistically significant
- object recognition
- distance learning
- computer mediated
- reinforcement learning
- similarity measure
- online environment
- multimedia