186 search results - page 14 / 38 » A Practical Approach to Hypothetical Database Queries |
140
Voted
SIGMOD
2004
ACM
16 years 3 months ago
2004
ACM
Cardinality estimation during query optimization relies on simplifying assumptions that usually do not hold in practice. To diminish the impact of inaccurate estimates during opti...
125
Voted
ICDT
2010
ACM
16 years 28 days ago
2010
ACM
We study fundamental aspects related to the efficient processing of the SPARQL query language for RDF, proposed by the W3C to encode machine-readable information in the Semantic W...
139
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DBPL
2001
Springer
15 years 8 months ago
2001
Springer
Commercial OLAP systems usually treat OLAP dimensions as static entities. In practice, dimension updates are often necessary in order to adapt the multidimensional database to chan...
134
Voted
IJCSA
2007
15 years 3 months ago
2007
Preference-based queries often referred to as skyline queries play an important role in cooperative query processing. However, their prohibitive result sizes pose a severe challen...
148
Voted
PODS
2004
ACM
16 years 3 months ago
2004
ACM
We present a novel coding-based technique for answering spatial and spatiotemporal queries on objects moving along a system of curves on the plane such as many road networks. We h...