737 search results - page 20 / 148 » Optimization approach for data allocation in multidisk datab... |
SIGMOD
2007
ACM
14 years 9 months ago
2007
ACM
Commercial enterprise data warehouses are typically implemented on parallel databases due to the inherent scalability and performance limitation of a serial architecture. Queries ...
ICDE
2007
IEEE
14 years 10 months ago
2007
IEEE
It has long been recognized that multi-stream operators, such as union and join, often have to wait idly in a temporarily blocked state, as a result of skews between the timestamp...
PVLDB
2010
13 years 3 months ago
2010
Database evolution is the process of updating the schema of a database or data warehouse (schema evolution) and evolving the data to the updated schema (data evolution). Database ...
KDD
2004
ACM
14 years 2 months ago
2004
ACM
Randomization is an economical and efficient approach for privacy preserving data mining (PPDM). In order to guarantee the performance of data mining and the protection of individ...
PODS
2010
ACM
14 years 2 months ago
2010
ACM
A fundamental problem in data management is to draw a sample of a large data set, for approximate query answering, selectivity estimation, and query planning. With large, streamin...