88 search results - page 9 / 18 » Exploiting statistics on query expressions for optimization |
ICDE
2009
IEEE
14 years 2 months ago
2009
IEEE
— Existing stream processing systems are optimized for a specific metric, which may limit their applicability to diverse applications and environments. This paper presents XFlow...
SSDBM
2003
IEEE
14 years 29 days ago
2003
IEEE
Relational index structures, as for instance the Relational Interval Tree, the Relational R-Tree, or the Linear Quadtree, support efficient processing of queries on top of existin...
BMCBI
2008
13 years 7 months ago
2008
Background: Expressed sequence tag (EST) collections are composed of a high number of single-pass, redundant, partial sequences, which need to be processed, clustered, and annotat...
IS
2007
13 years 7 months ago
2007
: A number of indexing techniques have been proposed in recent times for optimizing the queries on XML and other semistructured data models. Most of the semistructured models use t...
DEXAW
2009
IEEE
14 years 2 months ago
2009
IEEE
—In this paper RDFStats is introduced, which is a generator for statistics of RDF sources like SPARQL endpoints and RDF documents. RDFStats does not only provide a statistics gen...