Search: in, Miller, R, edu, 100 - 499

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Nested Mappings: Schema Mapping Reloaded

... 666.47 KB Many problems in information integration rely on specifications, called schema mappings, that ... for both relational and nested data are well-known. In this work, we present a new formalism for schema mapping that extends these existing formalisms in two significant ways. First, our nested mappings allow for nesting and ...

Publication - huliganka - 04/17/2013 - 00:05 - 0 comments - 1 attachment

Mapping Data in Peer-to-Peer Systems: Semantics and Algorithmic Issues

... KB We consider the problem of mapping data in peer-topeer data-sharing systems. Such systems often rely on the use of ... of corresponding values to search for data residing in different peers. In this paper, we address semantic and algorithmic issues ...

Publication - Anonymous - 04/16/2013 - 16:05 - 0 comments - 1 attachment

Mapping Adaptation under Evolving Schemas

... to translate data from one representation to another. In dynamic environments like the Web, data sources may change not only ... query capabilities. Such changes must be reflected in the mappings. Mappings left inconsistent by a schema change have to be ...

Publication - cat - 04/16/2013 - 10:49 - 0 comments - 1 attachment

The Clio Project: Managing Heterogeneity

... of heterogeneous data transformation and integration. In Clio, we have collected together a powerful set of data management techniques that have proven invaluable in tackling these difficult problems. In this paper, we present the underlying ...

Publication - massmann - 04/16/2013 - 10:38 - 0 comments - 1 attachment