Keyphrases
- information retrieval
- information extraction
- question answering
- text mining
- natural language processing
- language processing
- computational linguistics
- text processing
- ontology learning
- information retrieval systems
- natural language
- tasks in natural language processing
- document collections
- linguistic analysis
- learning to rank
- wordnet
- relevant documents
- text summarization
- vector space model
- information access
- search engine
- semantic analysis
- named entities
- natural language understanding
- retrieval systems
- test collection