44 search results - page 3 / 9 » SAQA: Spatial and Attribute Based Query Aggregation in Wirel... |
MDM
2009
Springer
14 years 4 months ago
2009
Springer
Location monitoring systems are used to detect human activities and provide monitoring services, e.g., aggregate queries. In this paper, we consider an aggregate location monitori...
DCOSS
2006
Springer
14 years 1 months ago
2006
Springer
Abstract. We present a comparative mathematical analysis of two important distinct approaches to hybrid push-pull querying in wireless sensor networks: structured hash-based data-c...
EWSN
2006
Springer
14 years 9 months ago
2006
Springer
Abstract. We propose a lightweight localisation approach for supporting distance and range queries in ad hoc wireless sensor networks. In contrast to most previous localisation app...
IPPS
2007
IEEE
14 years 3 months ago
2007
IEEE
— An important class of queries over sensor networks are network-wide aggregation queries. In this work we study a class of aggregation queries which we refer to as aggregate thr...
ADHOCNOW
2008
Springer
13 years 10 months ago
2008
Springer
This paper presents a novel method for optimizing sliding window based continuous queries. We deal with two categories of aggregation operations: stepwise aggregation (e.g. COUNT) ...