Keyphrases
- feature selection
- feature set
- irrelevant features
- discriminative features
- group interaction
- preprocessing step
- feature subset
- group discussion
- redundant features
- online learning
- group members
- real time
- feature ranking
- image features
- face to face interaction
- text categorization
- feature extraction
- collaborative problem solving
- machine learning
- selecting features
- input features
- face to face interactions
- information gain
- model selection
- mutual information
- multi class
- feature vectors
- support vector machine
- classification accuracy
- pointwise mutual information
- human computer interaction
- support vector
- dimensionality reduction
- supervised feature selection
- feature selection algorithms
- feature space
- online collaborative
- group learning
- user interaction
- feature weighting
- selected features