Keyphrases
- query processing
- approximate answers
- answering queries
- inverted index
- index structure
- query graph
- unstructured p p systems
- aggregate queries
- indexing methods
- indexing techniques
- candidate set
- user defined
- database
- query answering
- result set
- index selection
- similarity queries
- pre computed
- graph structure
- graph databases
- proximity search
- similarity search
- query language
- graph mining
- query result
- weighted graph
- query evaluation
- response time
- aggregation queries
- document identifiers
- range aggregate queries
- skyline queries
- range queries
- database systems
- random walk
- structured data
- graph data
- b tree
- efficient processing
- database queries
- complex queries
- query optimization
- exact match
- user queries
- reachability queries
- web search engines
- indexing structure
- r tree
- bitmap indexes
- data sources
- inverted file