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https://scholarbank.nus.edu.sg/handle/10635/78402
Title: | Towards optimal utilization of main memory for moving object indexing | Authors: | Cui, B. Lin, D. Tan, K.-L. |
Issue Date: | 2005 | Citation: | Cui, B.,Lin, D.,Tan, K.-L. (2005). Towards optimal utilization of main memory for moving object indexing. Lecture Notes in Computer Science 3453 : 600-611. ScholarBank@NUS Repository. | Abstract: | In moving object databases, existing disk-based indexes are unable to keep up with the high update rate while providing speedy retrieval at the same time. However, efficient management of moving-object database can be achieved through aggressive use of main memory. In this paper, we propose an Integrated Memory Partitioning and Activity Conscious Twin-index (IMPACT) framework where the moving object database is indexed by a pair of indexes based on the properties of the objects' movement - a main-memory structure manages active objects while a disk-based index handles inactive objects. As objects become active (or inactive), they dynamically migrate from one structure to the other. Moreover, the main memory is also organized into two partitions - one for the main memory index, and the other as buffers for the frequently accessed nodes of the disk-based index. Our experimental study shows that the IMPACT framework provides superior performance. © Springer-Verlag Berlin Heidelberg 2005. | Source Title: | Lecture Notes in Computer Science | URI: | http://scholarbank.nus.edu.sg/handle/10635/78402 | ISSN: | 03029743 |
Appears in Collections: | Staff Publications |
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