The R*-tree: an efficient and robust access method for points and rectangles
SIGMOD '90 Proceedings of the 1990 ACM SIGMOD international conference on Management of data
DB&IR integration: report on the Dagstuhl seminar
ACM SIGMOD Record
AIST CS-W: an OGC-based distributed geospatial search engine for heterogeneous metadata
Proceedings of the ACM SIGSPATIAL Second International Workshop on High Performance and Distributed Geographic Information Systems
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In this paper, we propose an extensible information retrieval system based on data typed indices. The indices are constructed for various data types and are customized and extensible. Based on this system, we have implemented a catalog service of earth observation metadata. Using this system, it is possible to search through a large amount of metadata with heterogeneous schema. Fast response time is also achieved regardless of the number of individual query results.