Keyphrases
- language modeling
- language model
- finite state transducers
- information retrieval
- retrieval model
- query expansion
- probabilistic model
- n gram
- cross lingual
- natural language processing
- relevance model
- document retrieval
- natural language
- statistical language models
- text classification
- improvements in retrieval effectiveness
- retrieval effectiveness
- vector space model
- unsupervised learning
- pseudo feedback
- query terms
- test collection
- information extraction
- multimedia