2223 search results - page 42 / 445 » Query Optimization in an OODBMS |
NIPS
2008
15 years 1 months ago
2008
Query expansion is a long-studied approach for improving retrieval effectiveness by enhancing the user's original query with additional related words. Current algorithms for ...
170
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PODS
2011
ACM
14 years 2 months ago
2011
ACM
Database queries can be broadly classified into two categories: reporting queries and aggregation queries. The former retrieves a collection of records from the database that mat...
PODS
2004
ACM
15 years 12 months ago
2004
ACM
213
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ICDE
2008
IEEE
16 years 1 months ago
2008
IEEE
The typical workload in a database system consists of a mixture of multiple queries of different types, running concurrently and interacting with each other. Hence, optimizing perf...
170
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ICDE
2002
IEEE
16 years 1 months ago
2002
IEEE
The ability to provide accurate and efficient result estimations of user queries is very important for the query optimizer in database systems. In this paper, we show that the tra...