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2006
ACM

Caching Complementary Space for Location-Based Services

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Caching Complementary Space for Location-Based Services
In this paper, we propose a novel client-side, multi-granularity caching scheme, called "Complementary Space Caching" (CS caching), for location-based services in mobile environments. Different from conventional data caching schemes that only cache a portion of dataset, CS caching maintains a global view of the whole dataset. Different portions of this view are cached in varied granularity based on the probabilities of being accessed in the future queries. The data objects with very high access probabilities are cached in the finest granularity, i.e., the data objects themselves. The data objects which are less likely to be accessed in the near future are abstracted and logically cached in the form of complementary regions (CRs) in a coarse granularity. CS caching naturally supports all types of location-based queries. In this paper, we explore several design and system issues of CS caching, including cache memory allocation between objects and CRs, and CR coalescence. We dev...
Ken C. K. Lee, Wang-Chien Lee, Baihua Zheng, Jianl
Added 08 Dec 2009
Updated 08 Dec 2009
Type Conference
Year 2006
Where EDBT
Authors Ken C. K. Lee, Wang-Chien Lee, Baihua Zheng, Jianliang Xu
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