Keyphrases
- database
- indexing techniques
- user queries
- complex queries
- search queries
- query formulation
- database queries
- databases
- keyword search
- efficient indexing
- query interface
- query reformulation
- retrieval engine
- database systems
- query refinement
- efficiently retrieve
- query result
- query processing
- heterogeneous databases
- access methods
- metric access methods
- search algorithm
- result set
- cost model
- query graph
- indexing structure
- search terms
- answering queries
- search space
- search interface
- relational databases
- web databases
- similarity search
- search mechanism
- query language
- inverted index
- search results clustering
- return a ranked list
- search quality
- multiple tables
- search experience
- inverted file
- query suggestion
- database management systems
- relevance feedback
- data model
- search engine
- pre computed
- sequence databases
- prior art
- original query
- query specific
- keyword queries
- hierarchically organized
- data structure
- metadata