619 search results - page 12 / 124 » Query Planning in Infomaster |
144
Voted
EDBT
2012
ACM
13 years 4 months ago
2012
ACM
Query optimization in RDF Stores is a challenging problem as SPARQL queries typically contain many more joins than equivalent relational plans, and hence lead to a large join orde...
125
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SIGMOD
2004
ACM
16 years 2 months ago
2004
ACM
We define a framework for static optimization of sliding window conjunctive queries over infinite streams. When computational resources are sufficient, we propose that the goal of...
SIGMOD
1998
ACM
15 years 6 months ago
1998
ACM
ICDT
1999
ACM
15 years 6 months ago
1999
ACM
In data integration systems, queries posed to a mediator need to be translated into a sequence of queries to the underlying data sources. In a heterogeneous environment, with sour...
108
Voted
XIMEP
2004
ACM
15 years 7 months ago
2004
ACM
We give an overview on how XQuery processing works in our native XML database system Natix. After a brief description of the query compiler we focus on the aspect of join ordering...