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Existing location-based services provide specialized services to their customers based on the knowledge of their exact locations. With untrustworthy servers, location-based service...
Publication
This paper presents a novel algorithm for Incremental and General Evaluation of continuous Reverse Nearest neighbor queries (IGERN, for short). The IGERN algorithm is general as it...
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Thanaa M. Ghanem, Moustafa A. Hammad, Mohamed F. Mokbel, Walid G. Aref, and Ahmed K. Elmagarmid. "Incremental Evaluation of Sliding-window Queries over Data Streams". IEE...
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Tuning database system configuration parameters to proper values according to the expected query workload plays a very important role in determining DBMS performance. However, the ...
Publication
Sensor networks have been used in many surveillance systems, providing statistical information about monitored areas. Accurate counting information (e.g., the distribution
of the ...