Keyphrases
- decision trees
- training data
- training set
- query language
- query processing
- query logs
- database
- user queries
- efficient processing
- query formulation
- query evaluation
- response time
- database queries
- pairwise
- web search engines
- retrieval systems
- user defined
- web search
- complex queries
- training examples
- data management
- integrity constraints
- search queries
- data sources
- aggregate queries
- answering queries