Towards Approximating Incomplete Queries over Partially Complete Databases (Extended Abstract).
Ognjen SavkovicEvgeny KharlamovWerner NuttPierre SenellartPublished in: AMW (2017)
Keyphrases
- extended abstract
- databases
- null values
- database queries
- database
- closed world
- data sources
- query language
- data retrieval
- query processing
- relational database systems
- query evaluation
- web search engines
- query interface
- indexing techniques
- response time
- data integration
- user queries
- efficient processing
- relational databases
- database applications
- integrity constraints
- answering queries
- web databases
- database updates
- spatio temporal databases
- database views
- search queries
- query logs
- missing data
- knowledge discovery
- data model
- database systems
- query formulation
- multidimensional databases
- data warehouse