A Research on Global Spatial Data Directory in Peer-toPeer Networks
Ma Xiujun · Geography and Geo-Information Science · 2006
Peer-to-Peer computing provided a new distributed computing pattern for spatial data and spatial operation distribution based on large amount of self-organized peers'collaboration.Spatial databases located on different peers collaborated with each other form a super global spatial database,and global spatial data directory is the key technology to locate spatial resources and spatial computing peer in Peerto-Peer networks.Parameters such as database schema,metadata and resource status are abstracted as keyword collections.A Peer-to-Peer spatial index was build dynamically based on peers'spatial data minimum bounding rectangle(MBR) by global spatial data directory,and supported peers'dynamic join and exit.Complex spatial query and keyword query are also well supported by this Peer-to-Peer spatial index.