Keyphrases
- language modeling
- language model
- retrieval model
- information retrieval
- query expansion
- cross lingual
- probabilistic model
- n gram
- text classification
- semantic information
- relevance model
- statistical language models
- co occurrence
- natural language
- sentence retrieval
- text mining
- machine learning
- retrieval systems
- keywords
- retrieval effectiveness
- bayesian networks
- search engine
- smoothing methods
- pseudo feedback