Study on key technology of HPSIN-Based vector geo-data online service

Authors:
Jiali Feng;Nan Jiang;Bin Hu;Jiagao Wu;Zhiqiang Zou
Affiliations:
School of Geographic and Oceanographic Science, Nanjing University, Nanjing, China;School of Geographic and Oceanographic Science, Nanjing University, Nanjing, China and Key Laboratories of Virtual Geographical Environment, Nanjing Normal University, Ministry of Education, Nanji ...;Key Laboratories of Virtual Geographical Environment, Nanjing Normal University, Ministry of Education, Nanjing, China;Institute of Computer Technology, College of Computer, Nanjing University of Posts and Telecommunications, Nanjing, China;Institute of Computer Technology, College of Computer, Nanjing University of Posts and Telecommunications, Nanjing, China
Venue:
Transactions on Edutainment VII
Year:
2012

Citing 2
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Abstract

P2P technology can avoid "single point of failure" and "hot spots bottleneck" problems, which exist in traditional centralized system of spatial information. Hybrid P2P Spatial Indexing Network combines distributed Quad-Tree with DHT-based Chord network to maintain both query efficiency and system load balance. In this paper, key technology of HPSIN based distributed vector geo-data online service is studied, the pattern of vector geo-data organization based on Linking Mechanism, segmentation and lossless reconstruction are proposed. This novel organization pattern can be used to form a loosely and globally distributed topology. Segmentation and lossless reconstruction method takes advantage of linking information, to reconstruct the damaged Geometries lossless. Comparative experiment shows that the organization and the associated algorithms are lossless and reliable.