651 search results - page 66 / 131 » Algebraic Query Optimization for Distributed Top-k Queries |
DEXA
2008
Springer
13 years 11 months ago
2008
Springer
The query performance for tracing tags depends upon the distribution of tag trajectories in the data space. We examine a more efficient representation of tag trajectories by means ...
SIGMOD
2003
ACM
14 years 9 months ago
2003
ACM
We discuss the design of an acquisitional query processor for data collection in sensor networks. Acquisitional issues are those that pertain to where, when, and how often data is...
ICDE
2009
IEEE
14 years 10 months ago
2009
IEEE
A promising approach to scaling Web applications is to distribute the server infrastructure on which they run. This approach, unfortunately, can introduce latency between the appl...
KIVS
2009
Springer
14 years 3 months ago
2009
Springer
We present an integrated approach for supporting in-network sensor data processing in dynamic and heterogeneous sensor networks. The concept relies on data stream processing techni...
FCSC
2007
13 years 9 months ago
2007
Application-level content-based routing using XML is a key technology for decentralized publish/subscribe systems. In this paper, a new approach is proposed to support the efficien...