Efficient Processing of Top-k Queries in Uncertain Databases with x-Relations.
Ke YiFeifei LiGeorge KolliosDivesh SrivastavaPublished in: IEEE Trans. Knowl. Data Eng. (2008)
Keyphrases
- efficient processing
- query processing
- uncertain databases
- join operations
- range queries
- uncertain data
- skyline queries
- efficient implementation
- data management
- frequent itemset mining
- query types
- twig queries
- user queries
- similarity search
- cost model
- formal semantics
- query optimization
- query evaluation
- r tree
- join algorithms
- index structure
- itemset mining
- metric space
- materialized views
- information retrieval
- multi dimensional
- nearest neighbor
- knowledge discovery
- data structure