Multi-route query processing and optimization
โ Scribed by Nehme, Rimma V.; Works, Karen; Lei, Chuan; Rundensteiner, Elke A.; Bertino, Elisa
- Book ID
- 118735696
- Publisher
- Elsevier Science
- Year
- 2013
- Tongue
- English
- Weight
- 747 KB
- Volume
- 79
- Category
- Article
- ISSN
- 0022-0000
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๐ SIMILAR VOLUMES
Database systems frequently have to execute a set of related queries, which share several common subexpressions. Multi-query optimization exploits this, by finding evaluation plans that share common results. Current approaches to multi-query optimization assume that common subexpressions are materia
The problem of word mismatch in information retrieval (IR) occurs because users often use dierent words to describe concepts in their queries than authors use to describe the same concepts in their documents. Query expansion is used to deal with the mismatch between author and user vocabularies. To