Keyphrases
- term frequency
- semantically enhanced
- document representation
- bag of words
- text documents
- tf idf
- document clustering
- retrieval model
- text categorization
- vector space
- language model
- document collections
- text classification
- average precision
- data fusion
- web documents
- vector space model
- background knowledge
- action recognition
- query terms
- image classification
- text data
- information retrieval systems
- text mining
- digital libraries
- test collection
- topic models
- probabilistic model