Keyphrases
- information retrieval
- text mining
- text retrieval
- text documents
- information retrieval systems
- text processing
- news articles
- search engine
- computational linguistics
- information extraction
- language model
- linguistic analysis
- test collection
- text collections
- event detection
- latent semantic analysis
- language modeling
- text data
- information filtering
- document categorization
- multi lingual
- tf idf
- textual data
- latent semantic indexing
- information access
- retrieval model
- document collections
- event sequences
- event recognition
- document indexing
- free text
- news stories
- vector space model
- database
- learning to rank
- retrieval effectiveness
- relevant documents
- retrieval systems
- web documents
- machine learning