Enhanced nearest neighbour search on the R-tree
ACM SIGMOD Record
Distance browsing in spatial databases
ACM Transactions on Database Systems (TODS)
Time-parameterized queries in spatio-temporal databases
Proceedings of the 2002 ACM SIGMOD international conference on Management of data
R-trees: a dynamic index structure for spatial searching
SIGMOD '84 Proceedings of the 1984 ACM SIGMOD international conference on Management of data
Performance of Nearest Neighbor Queries in R-Trees
ICDT '97 Proceedings of the 6th International Conference on Database Theory
Location-based spatial queries
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
Main Memory Evaluation of Monitoring Queries Over Moving Objects
Distributed and Parallel Databases
Monitoring k-Nearest Neighbor Queries over Moving Objects
ICDE '05 Proceedings of the 21st International Conference on Data Engineering
SEA-CNN: Scalable Processing of Continuous K-Nearest Neighbor Queries in Spatio-temporal Databases
ICDE '05 Proceedings of the 21st International Conference on Data Engineering
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This paper addresses the problem of monitoring continuous k-nearest neighbor (k-NN) queries. In order to support highly dynamic environments, where objects and/or queries are frequently moving, monitoring continuous k-NN require real-time updated results when objects and/or queries change their locations. Thus, it is important to minimize time delay for maintaining up to date the results. In this paper, we present the monitoring method to shorten time delay for updating continuous k-NN queries based on the notion of result region and the minimum bounding rectangle enclosing all objects inside each cell, referred to as cMBR, in the main-memory grid index structure. Simulations are conducted to show the efficiency of the proposed method.