Keyphrases
- semantic information
- information retrieval
- domain knowledge
- ontology development
- semantic annotation
- semantic web
- knowledge base
- semantically enhanced
- domain ontology
- information retrieval systems
- knowledge discovery
- web documents
- intended meaning
- document images
- domain specific
- software tools
- document classification
- keywords
- ontology mapping
- concept hierarchy
- document representation
- tf idf
- concept maps
- document clustering
- semi automatic
- document collections