Keyphrases
- external knowledge
- text classification
- text categorization
- semantic features
- bag of words
- domain knowledge
- text documents
- visual features
- text mining
- wordnet
- feature selection
- knn
- n gram
- document clustering
- machine learning
- unlabeled data
- labeled data
- video sequences
- knowledge sources
- key frames
- textual information
- k nearest neighbor
- semantic information
- video content
- low level
- data analysis
- low level features
- web directories