Computational geometry in C
Using semantic caching to manage location dependent data in mobile computing
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Location dependent query processing
Proceedings of the 2nd ACM international workshop on Data engineering for wireless and mobile access
Exploiting location information for infostation-based hoarding
Proceedings of the 7th annual international conference on Mobile computing and networking
Data Management in Location-Dependent Information Services
IEEE Pervasive Computing
Cache Invalidation and Replacement Strategies for Location-Dependent Data in Mobile Environments
IEEE Transactions on Computers
Triangle: Engineering a 2D Quality Mesh Generator and Delaunay Triangulator
FCRC '96/WACG '96 Selected papers from the Workshop on Applied Computational Geormetry, Towards Geometric Engineering
Semantic Data Caching and Replacement
VLDB '96 Proceedings of the 22th International Conference on Very Large Data Bases
Power Conservative Multi-Attribute Queries on Data Broadcast
ICDE '00 Proceedings of the 16th International Conference on Data Engineering
Mobile service oriented architectures for NN-queries
Journal of Network and Computer Applications
Location-dependent query processing: Where we are and where we are heading
ACM Computing Surveys (CSUR)
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Mobility of user poses new challenges to research on spatial data access. Spatial data cached in the mobile client may become invalid because of the movement of the client. To increase the reusability of the cached data, we can identify the valid scope of the spatial data (i.e., the spatial area within which the data is known to be valid) and save the valid scope as well as the data in the cache. In this paper, we study issues on the dissemination of spatial data and valid scopes in a wireless environment. We investigate methods for representing valid scopes and their impacts on system performance. A generic representation method, called the invalidation-efficiency-based (IEB) method, is proposed. Simulation experiments are conducted to compare the performance of IEB with other representation methods. Result shows that IEB is superior to the other methods because it tries to balance the precision and overhead of valid scopes.