2724 search results - page 177 / 545 » Optimizing Queries on Files |
147
Voted
CADE
2012
Springer
13 years 6 months ago
2012
Springer
The problem of SPARQL query containment is defined as determining if the result of one query is included in the result of another for any RDF graph. Query containment is important...
152
Voted
ICDE
2005
IEEE
15 years 9 months ago
2005
IEEE
— XQuery, the defacto XML query language, is a functional language with operational semantics, which precludes the direct application of classical query optimization techniques. ...
154
Voted
VLDB
2005
ACM
15 years 9 months ago
2005
ACM
Query optimizers in current database systems are designed to pick a single efficient plan for a given query based on current statistical properties of the data. However, different...
133
Voted
BTW
2003
Springer
2003
Springer
Transbase: a Leading-edge ROLAP Engine Supporting Multidimensional Indexing and Hierarchy Clustering
15 years 8 months ago
: Analysis-oriented database applications, such as data warehousing or customer relationship management, play a crucial role in the database area. In general, the multidimensional ...
190
Voted
ICDE
2011
IEEE
14 years 7 months ago
2011
IEEE
— In this paper, we study the problem of efficiently computing multiple aggregation queries over a data stream. In order to share computation, prior proposals have suggested ins...