Keyphrases
- wikipedia articles
- document collections
- concept space
- metadata
- external knowledge
- information retrieval
- wikipedia pages
- semantic information
- semantic relatedness
- wikipedia categories
- probabilistic topic models
- key concepts
- semantic relationships
- knowledge resources
- web documents
- logical structure
- information retrieval systems
- world knowledge
- natural language text
- document retrieval
- document clustering
- xml documents
- relevant documents
- text documents
- related concepts
- document representation
- document classification
- wordnet
- semantic annotation
- controlled vocabulary
- document structure
- search queries
- semantic network