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CoGIS: A Cooperative Geographical Information System
Wesley W. Chu, Hua Yang, Kuorong Chiang,
Berthier Ribeiro, Gladys Chow
Computer Science Department
University of California at Los Angeles
Los Angeles, CA 90024
e-mail: firstname.lastname@example.org, email@example.com
Knowledge-based cooperative query answering facilities have been
introduced to the GIS for approximate query answering.
We use context-sensitive spatial type abstraction hierarchies
to provide such cooperative capabilities.
As a result, the ranges of the approximate spatial operators
can be automatically determined by STAHs, rather than
specified by domain experts.
Thus these operators are context-sensitive.
Further, STAHs can be generated automatically from
geographic databases and thus is scalable.
A prototype system - CoGIS - has been implemented to
incorporate these cooperative capabilities.
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