Keyphrases
- keyword search
- sensitive information
- protect sensitive
- third party
- keywords
- relational databases
- search engine
- privacy preserving
- cloud computing
- structured data
- data privacy
- xml data
- privacy preservation
- xml keyword search
- xml documents
- xml databases
- private information
- original data
- keyword queries
- search queries
- medical records
- sensitive data
- web search engines
- keyword search over relational databases
- keyword search in relational databases
- databases
- information sharing
- query language
- health care
- query keywords
- information retrieval systems
- confidential information
- data sharing
- proximity search
- database
- big data
- kernel function
- data mining