262 search results - page 14 / 53 » Spatio-temporal join selectivity |
ICDE
2002
IEEE
14 years 9 months ago
2002
IEEE
XML queries typically specify patterns of selection predicates on multiple elements that have some specified tree structured relationships. The primitive tree structured relations...
SIGMOD
2009
ACM
14 years 7 months ago
2009
ACM
With the proliferation of the RDF data format, engines for RDF query processing are faced with very large graphs that contain hundreds of millions of RDF triples. This paper addre...
WADS
2007
Springer
14 years 1 months ago
2007
Springer
Let (L, ∗) be a semilattice, and let c : L → [0, ∞) be monotone and increasing on L. We state the Minimum Join problem as: given size n sub-collection X of L and integer k w...
DBKDA
2010
IEEE
14 years 20 days ago
2010
IEEE
Abstract—XML indexing and search has become an important topic, and twig joins are key building blocks in XML search systems. This paper describes a novel approach using a nested...
SIGMOD
1995
ACM
13 years 11 months ago
1995
ACM
Text is a pervasive information type, and many applications require querying over text sources in addition to structured data. This paper studies the problem of query processing i...