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» Supporting spatial aggregation in sensor network databases
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MOBIDE
2010
ACM
13 years 7 months ago
Direction-based spatial skylines
Traditional location-based services recommend nearest objects to the user by considering their spatial proximity. However, an object not only has its distance but also has its dir...
Xi Guo, Yoshiharu Ishikawa, Yunjun Gao
ICDE
2009
IEEE
143views Database» more  ICDE 2009»
14 years 2 months ago
Supporting Generic Cost Models for Wide-Area Stream Processing
— Existing stream processing systems are optimized for a specific metric, which may limit their applicability to diverse applications and environments. This paper presents XFlow...
Olga Papaemmanouil, Ugur Çetintemel, John J...
ICDE
2006
IEEE
186views Database» more  ICDE 2006»
14 years 9 months ago
Energy-Efficient Continuous Isoline Queries in Sensor Networks
Environmental monitoring is a promising application for sensor networks. Many scenarios produce geographically correlated readings, making them visually interesting and good targe...
Adam Silberstein, Jun Yang 0001, Rebecca Braynard
SIGMOD
2006
ACM
126views Database» more  SIGMOD 2006»
14 years 7 months ago
Constraint chaining: on energy-efficient continuous monitoring in sensor networks
Wireless sensor networks have created new opportunities for data collection in a variety of scenarios, such as environmental and industrial, where we expect data to be temporally ...
Adam Silberstein, Jun Yang 0001, Rebecca Braynard
SIGMOD
2007
ACM
168views Database» more  SIGMOD 2007»
14 years 7 months ago
In-network execution of monitoring queries in sensor networks
Sensor networks are widely used in many applications for collecting information from the physical environment. In these applications, it is usually necessary to track the relation...
Xiaoyan Yang, Hock-Beng Lim, M. Tamer Özsu, K...