140 search results - page 10 / 28 » RDF Aggregate Queries and Views |
EDBT
2002
ACM
14 years 9 months ago
2002
ACM
Abstract. Aggregate window queries return summarized information about objects that fall inside a query rectangle (e.g., the number of objects instead of their concrete ids). Tradi...
ICDE
2009
IEEE
14 years 10 months ago
2009
IEEE
Materializing results from complex aggregation queries helps to significantly improve response times in OLAP servers. This problem is known as the view selection problem: choosing ...
DOLAP
2000
ACM
14 years 1 months ago
2000
ACM
A multidimensional database can be seen as a collection of multidimensional cubes, from which information is usually extracted by aggregation; aggregated data can be calculated ei...
DOLAP
2004
ACM
14 years 2 months ago
2004
ACM
A peer-to-peer (P2P) data management system consists essentially of a network of peer systems, each maintaining full autonomy over its own data resources. Data exchange between pe...
VLDB
2005
ACM
14 years 2 months ago
2005
ACM
Prior work on computing queries from materialized views has focused on views defined by expressions consisting of selection, projection, and inner joins, with an optional aggrega...