Related items
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Article
Optimized query routing trees for wireless sensor networks
Andreou, Panayiotis G.; Zeinalipour-Yazdi, Constantinos D.; Pamboris, Andreas; Chrysanthis, Panos K.; Samaras, George S. (2011)In order to process continuous queries over Wireless Sensor Networks (WSNs), sensors are typically organized in a Query Routing Tree (denoted as T) that provides each sensor with a path over which query results can be ...
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Conference Object
The threshold join algorithm for top-k queries in distributed sensor networks
Zeinalipour-Yazdi, Constantinos D.; Vagena, Zografoula; Gunopulos, Dimitrios; Kalogeraki, Vana; Tsotras, Vassilis J.; Vlachos, Michail; Koudas, Nick; Srivastava, D. (2005)In this paper we present the Threshold Join Algorithm (TJA), which is an efficient TOP-k query processing algorithm for distributed sensor networks. The objective of a top-k query is to find the k highest ranked answers ...
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Conference Object
KSpot: Effectively monitoring the k most important events in a wireless sensor network
Andreou, Panayiotis G.; Zeinalipour-Yazdi, Constantinos D.; Vassiliadou, M.; Chrysanthis, Panos K.; Samaras, George S. (2009)This demo presents a graphical user interface and ranking system, coined KSpot, for effectively monitoring the K highest-ranked answers to a query Q in a Wireless Sensor Network. KSpot deploys state-of-the-art distributed ...