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Privacy-preserving Semantic Interoperation and Access Control of Heterogeneous Databases
Privacy-preserving Semantic Interoperation and Access Control of Heterogeneous Databases

... Federated database systems implement one-to-one connections between all pairs of databases that need to talk to each other. These connections allow one database system D1 (or employees of one organization or entity E1 ) to query another D2 (owned by another organization E2 ) in terms that D2 can und ...
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Entity–attribute–value model

Entity–attribute–value model (EAV) is a data model to describe entities where the number of attributes (properties, parameters) that can be used to describe them is potentially vast, but the number that will actually apply to a given entity is relatively modest. In mathematics, this model is known as a sparse matrix. EAV is also known as object–attribute–value model, vertical database model and open schema.
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