Keyphrases
- keyword search
- xml documents
- relational databases
- xml data
- xml databases
- search engine
- keywords
- xml keyword search
- structured data
- semantic search
- keyword queries
- web search engines
- search queries
- query language
- keyword search over relational databases
- xml queries
- databases
- inverted index
- web search
- xml fragments
- proxy re encryption
- proximity search
- data model
- digital libraries
- database