Rongquen Chen

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A global view in a multidatabase system is defined as a query against base relations. When the global view is materialized, any update to the corresponding base relations needs to be propagated to the materialized view. This is known as view maintenance. Different maintenances of the same materialized global view for different local updates may interfere(More)
Many Earth and Space Science applications involve analysis of distributed data in a heterogeneous computing environment. NASA Earth Science Distributed Data Archives, sensor networks, and virtual observatories are some examples of such environments that deal with distributed data. Standard off-theshelf centralized data mining products usually scale poorly(More)
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