Handling semantic heterogeneities using declarative agreements
Proceedings of the 10th ACM international symposium on Advances in geographic information systems
A study on automatic ontology mapping of categorical information
dg.o '03 Proceedings of the 2003 annual national conference on Digital government research
A framework for semantic reconciliation of disparate earth observation thematic data
Computers & Geosciences
Proceedings of the 21st ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
Hi-index | 0.00 |
The proposed Wisconsin Land Information System (WLIS) will be a statewide access mechanism for land related data. It will be a distributed Web-based system with heterogeneous data residing on local and state servers. One of the most important functions for WLIS is to integrate land use data across jurisdictions to enable decision-making for comprehensive land use planning. Here, we describe the semantic problems of integrating land use codes. We then present the current state of our enhancements to an XML query engine to provide query processing over heterogeneous data sets. We also briefly describe the integration of XML databases based on a declaratively specified mapping from each database to a central and expert-defined authority.