Keyphrases
- semantic network
- web databases
- deep web
- semantic net
- database systems
- databases
- spreading activation
- user queries
- wordnet
- database
- semantic relations
- key technologies
- knowledge base
- query interface
- knowledge sources
- database technology
- search engine
- data management
- web pages
- structured data
- database server
- predicate logic
- data warehousing
- web users
- data sources
- semi structured
- artificial intelligence
- expert systems
- knowledge discovery
- mobile devices