Efficient Outer Join Data Skew Handling in Parallel DBMS.
Yu XuPekka KostamaaPublished in: Proc. VLDB Endow. (2009)
Keyphrases
- data skew
- data distribution
- skewed data
- parallel processing
- load balancing
- parallel database systems
- join operations
- join algorithms
- sort merge
- database systems
- database
- hash join
- efficient implementation
- dimensionality reduction
- data structure
- relational database systems
- class imbalance
- efficient processing
- database management systems
- data model
- query processing
- training data