99 search results - page 12 / 20 » Approximate Aggregation Techniques for Sensor Databases |
SIGMOD
2004
ACM
14 years 7 months ago
2004
ACM
Many algorithms have been proposed to approximate holistic aggregates, such as quantiles and heavy hitters, over data streams. However, little work has been done to explore what t...
DCOSS
2008
Springer
13 years 9 months ago
2008
Springer
Sensor networks can be viewed as large distributed databases, and SQL-like high-level declarative languages can be used for data and information retrieval. Energy constraints make ...
SIGMOD
2008
ACM
14 years 7 months ago
2008
ACM
In wireless sensor networks (WSNs), energy consumption and data quality are two important issues due to limited energy resources and the need for accurate data. In this scenario, i...
ICC
2007
IEEE
14 years 1 months ago
2007
IEEE
— We consider energy efficient packet forwarding with quality-of-service (QoS) guarantee for wireless sensor networks (WSNs). In most existing wireless network protocols, route ...
SIGMOD
1998
ACM
13 years 11 months ago
1998
ACM
Databases are increasingly being used to store multi-media objects such as maps, images, audio and video. Storage and retrieval of these objects is accomplished using multi-dimens...