Selecting adequate samples for approximate decision support queries
For highly selective queries, a simple random sample of records drawn from a large data warehouse may not contain sufficient number of records that satisfy the query conditions. Efficient sampling schemes for such queries require innovative techniques that can access records that are relevant to eac...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Conference Paper |
| Published: |
Science and Technology Publications
2013
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/33606 |