262 search results - page 12 / 53 » Spatio-temporal join selectivity |
ICDE
2007
IEEE
14 years 9 months ago
2007
IEEE
Queries containing outer joins are common in data warehousing applications. Materialized outer-join views could greatly speed up many such queries but most database systems do not...
JUCS
2006
13 years 7 months ago
2006
: The seminal algorithm developed by Ron Cytron, Jeanne Ferrante and colleagues in 1989 for the placement of -nodes in a control flow graph is still widely used in commercial compi...
WWW
2006
ACM
14 years 8 months ago
2006
ACM
An important issue arising from large scale data integration is how to efficiently select the top-K ranking answers from multiple sources while minimizing the transmission cost. T...
VLDB
1994
ACM
13 years 11 months ago
1994
ACM
Most declarative SQL-like query languagesfor object-oriented database systems (OOSQL) are orthogonal languages allowing for arbitrary nesting of expressions in the select-, from-,...
TKDE
1998
13 years 7 months ago
1998
—Existing methods for spatial joins require pre-existing spatial indices or other precomputation, but such approaches are inefficient and limited in generality. Operand data sets...