2298 search results - page 20 / 460 » Querying spatial patterns |
129
Voted
GIS
1997
ACM
15 years 7 months ago
1997
ACM
Spatial indexes, such as the PMR quadtree, are important in spatial databases for efficient execution of queries involving spatial constraints, especially when the queries involve...
149
Voted
ICDM
2006
IEEE
15 years 9 months ago
2006
IEEE
Existing studies for mining frequent XML query patterns mainly introduce a straightforward candidate generate-and-test strategy and compute frequencies of candidate query patterns...
134
Voted
SIGMOD
2008
ACM
15 years 3 months ago
2008
ACM
Tree pattern queries (TPQs) provide a natural and easy formalism to query tree-structured XML data, and the efficient processing of such queries has attracted a lot of attention. ...
169
Voted
ICPP
1994
IEEE
15 years 7 months ago
1994
IEEE
E cient data-parallel spatial join algorithms for pmr quadtrees and R-trees, common spatial data structures, are presented. The domain consists of planar line segment data i.e., Bu...
170
Voted
EDBT
2011
ACM
14 years 7 months ago
2011
ACM
We present QueryViz, a novel visualization tool for SQL queries that reduces the time needed to read and understand existing queries. It targets two principal audiences: (i) users...