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» Monitoring Churn in Wireless Networks
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IPPS
2007
IEEE
14 years 2 months ago
Aggregate Threshold Queries in Sensor Networks
— 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...
Izchak Sharfman, Assaf Schuster, Daniel Keren
EWSN
2009
Springer
14 years 8 months ago
Sundial: Using Sunlight to Reconstruct Global Timestamps
Abstract. This paper investigates postmortem timestamp reconstruction in environmental monitoring networks. In the absence of a timesynchronization protocol, these networks use mul...
Jayant Gupchup, Razvan Musaloiu-Elefteri, Alexande...
MOBISYS
2007
ACM
14 years 7 months ago
Participatory user centered design techniques for a large scale ad-hoc health information system
During mass casualty incidents, an enormous amount of data, including the vital signs of the patients, the location of the patients, and the location of the first responders must ...
Tia Gao, Tammara Massey, Majid Sarrafzadeh, Leo Se...
CONEXT
2006
ACM
14 years 1 months ago
SNARE: sensor node attached reputation evaluator
Secure routing in wireless sensor networks (WSN) is a crucial problem that has drawn the attention of researchers. The motivation for tackling this problem comes directly from the...
Ismat K. Maarouf, A. R. Naseer
IFIP12
2007
13 years 9 months ago
Patient Fall Detection using Support Vector Machines
This paper presents a novel implementation of a patient fall detection system that may be used for patient activity recognition and emergency treatment. Sensors equipped with accel...
Charalampos Doukas, Ilias Maglogiannis, Philippos ...