191 search results - page 17 / 39 » XPath Query Evaluation: Improving Time and Space Efficiency |
CCS
2008
ACM
13 years 10 months ago
2008
ACM
Hash tables are fundamental data structures that optimally answer membership queries. Suppose a client stores n elements in a hash table that is outsourced at a remote server so t...
ICDE
1996
IEEE
14 years 9 months ago
1996
IEEE
This paper presents a difference calculus for determining changes to rule conditions in an active DBMS. The calculus has been used for implementing an algorithm to efficiently mon...
EDBT
2010
ACM
14 years 2 months ago
2010
ACM
The wide adaptation of GPS and cellular technologies has created many applications that collect and maintain large repositories of data in the form of trajectories. Previous work ...
ICDE
2008
IEEE
14 years 9 months ago
2008
IEEE
Abstract-- We present COLR-Tree, an abstraction layer designed to support efficient spatio-temporal queries on live data gathered from a large collection of sensors. We use COLR-Tr...
IWMMDBMS
1998
13 years 9 months ago
1998
: In recent years the fusion of multimedia information from multiple real-time sources and databases has become increasingly important because of its practical significance in many...