Keyphrases
- web documents
- language modeling
- expert finding
- information retrieval
- n gram
- language model
- multimedia
- information extraction
- retrieval model
- query expansion
- cross lingual
- probabilistic model
- text retrieval
- text classification
- statistical language models
- term weighting
- translation model
- expert search
- document retrieval
- topic models
- improvements in retrieval effectiveness
- chinese text retrieval
- vector space
- word segmentation
- learning process
- search engine