A Study of Inference Problems in Distributed Databases
NAVAL RESEARCH LAB WASHINGTON DC
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Often, database managers must decide which non-sensitive data to release. This is referred to as data sanitization or data downgrading. Issues surrounding downgrading are of particular importance to network architectures which utilize a multiple single level approach for keeping sensitive data away from the generic user. In a distributed environment, data may be distributed among different data sites. Therefore, before data is downgraded, database managers must take into account other data that users may have access to.
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