651 search results - page 17 / 131 » Algebraic Query Optimization for Distributed Top-k Queries |
ICDE
2012
IEEE
11 years 10 months ago
2012
IEEE
—Large graphs are used in many applications, such as social networking. The management of these graphs poses new challenges because such graphs are too large to fit on a single ...
CDB
2004
Springer
14 years 1 months ago
2004
Springer
Preference queries are relational algebra or SQL queries that contain occurrences of the winnow operator (find the most preferred tuples in a given relation). We present here a nu...
DOLAP
2004
ACM
14 years 1 months ago
2004
ACM
In today’s OLAP systems, integrating fast changing data, e.g., stock quotes, physically into a cube is complex and time-consuming. The widespread use of XML makes it very possib...
DBPL
1995
Springer
13 years 11 months ago
1995
Springer
Physical design for object-oriented databases is still in its infancy. Implementation decisions often intrude into the conceptual design (such as inverse links and object decompos...
DCOSS
2009
Springer
14 years 2 months ago
2009
Springer
Wireless sensor networks (WSNs) have been proposed for a large variety of applications. As the number of applications of sensor networks continue to grow, the number of users in se...