The object data standard: ODMG 3.0
The object data standard: ODMG 3.0
A map generalization model based on algebra mapping transformation
Proceedings of the 9th ACM international symposium on Advances in geographic information systems
A critical evaluation of location based services and their potential
Journal of Location Based Services
Constrained set-up of the tGAP structure for progressive vector data transfer
Computers & Geosciences
View- and scale-based progressive transmission of vector data
ICCSA'11 Proceedings of the 2011 international conference on Computational science and its applications - Volume Part II
An increment based model for multi-resolution geodata management in a mobile system
W2GIS'05 Proceedings of the 5th international conference on Web and Wireless Geographical Information Systems
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A solution is proposed for the management of multi-resolution vector data in a mobile spatial information visualization system. The client-server architecture and the models of data and transfer of the system are presented first. The aim of this system is to reduce data exchanged between client and server by reusing data already present on the client side. Then, an extension of this system to multi-resolution data is proposed. Our solution is based on the use of increments in a multi-scale database. A database architecture where data sets for different predefined scales are precomputed and stored on the server side is adopted. In this model, each object representing the same real world entities at different levels of detail has to be linked beforehand. Increments correspond to the difference between two datasets with different levels of detail. They are transmitted in order to increase (or decrease) the detail to the client upon request. They include generalization and refinement operators allowing transitions between the different levels. Finally, a framework suited to the transfer of multi-resolution data in a mobile context is presented. This allows reuse of data locally available at different levels of detail and, in this way, reduces the amount of data transferred between client and server.