ASPEN: An Adaptive Spatial Peer-to-Peer Network Haojun Wang, Roger Zimmermann, and Wei-Shinn Ku   View Paper (PDF)   Return to Session 7: Data Modeling - Performance Evaluation Abstract Geographic Information Systems (GIS) are increasingly managing very large sets of data and hence a centralized data repository may not always provide the most scalable solution. Here we introduce a novel approach to manage spatial data by leveraging structured Peer-to-Peer (P2P) systems based on Distributed Hash Tables (DHTs). DHT algorithms provide efficient exact-match object search capabilities without requiring global indexing and as a result they are extremely scalable. Furthermore, the ado ... ©2006 Association for Computing Machinery