112 search results - page 9 / 23 » Predicate Result Range Caching for Continuous Queries |
WAIM
2010
Springer
14 years 7 months ago
2010
Springer
Keyword search in relational databases has been widely studied in recent years. Most of the previous studies focus on how to answer an instant keyword query. In this paper, we focu...
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GIS
2008
ACM
15 years 10 months ago
2008
ACM
We report on our experience from design and implementation of a powerful map application for managing, querying and visualizing evolving locations of moving objects. Instead of bu...
VLDB
2001
ACM
15 years 1 months ago
2001
ACM
Relational database systems have traditionally optimzed for I/O performance and organized records sequentially on disk pages using the N-ary Storage Model (NSM) (a.k.a., slotted p...
DASFAA
2009
IEEE
15 years 4 months ago
2009
IEEE
Abstract. Continuous spatial queries retrieve a set of time-varying objects continuously during a given period of time. However, monitoring moving objects to maintain the correctne...
EDBT
2009
ACM
15 years 1 months ago
2009
ACM
We investigate the problem of refining SQL queries to satisfy cardinality constraints on the query result. This has applications to the many/few answers problems often faced by da...