Pervasive Computing and Communications Workshops, IEEE International Conference on (2005)
Kauai Island, Hawaii
Mar. 8, 2005 to Mar. 12, 2005
Alfredo Cuzzocrea , Università della Calabria
Filippo Furfaro , Università della Calabria
Sergio Greco , Università della Calabria
Elio Masciari , ICAR - CNR
Giuseppe M. Mazzeo , Università della Calabria
Domenico Saccà , ICAR - CNR
A distributed system for approximate query answering on sensor network data is proposed, where a suitable compression technique is exploited to represent data and support query answering. Each node of the system stores either detailed or summarized sensor readings. Query answers are computed by identifying the set of nodes that contain (either compressed or not) data involved in the query, and eventually partitioning the query in a set of sub-queries to be evaluated at different nodes. Queries are partitioned according to a cost model aiming at making the evaluation efficient and guaranteeing the desired degree of accuracy of query answers.
A. Cuzzocrea, E. Masciari, S. Greco, F. Furfaro, G. M. Mazzeo and D. Saccà, "A Distributed System for Answering Range Queries on Sensor Network Data," Pervasive Computing and Communications Workshops, IEEE International Conference on(PERCOMW), Kauai Island, Hawaii, 2005, pp. 369-373.