KQML as an agent communication language
CIKM '94 Proceedings of the third international conference on Information and knowledge management
XML-based information mediation with MIX
SIGMOD '99 Proceedings of the 1999 ACM SIGMOD international conference on Management of data
Scaling Access to Heterogeneous Data Sources with DISCO
IEEE Transactions on Knowledge and Data Engineering
Querying Heterogeneous Information Sources Using Source Descriptions
VLDB '96 Proceedings of the 22th International Conference on Very Large Data Bases
Geospatial Mediator Functions and Container-Based Fast Transfer Interface in Si3CO Test-Bed
INTEROP '99 Proceedings of the Second International Conference on Interoperating Geographic Information Systems
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In mobile field data collection, data gatherer requires to get geospatial information service to support in navigating to the right locations, describing context of observed object and providing thematic information for sampling or analysis. The framework how to get this information is subject to the variation in users with different levels of knowledge about information services, applications with different need of information, and limitations of field computing environments. In this paper, we present a new concept--field wrapper, which is an extension of wrapper concepts to the field data collection environments as a means of isolating the heterogeneity of field users, applications, and computing environments from infrastructure functions. The goal of our approach of field wrapper, which is as an important part of the mediator-based framework for collecting and using geospatial data in the field, is to enable any device with any user in the field to readily and easily interact with a larger computing infrastructure to search, retrieve, and get geospatial and other kinds of data. The key idea is to characterize the field environments to get an abstract field view. From this view, the system generates a field wrapper that facilitates query translation from user general request to the precise syntax statement accepted by mediator and result translation from native result to the specific result accepted by field user.