The Piazza peer data management system
Intuitively, data management and data integration tools are well-suited for exchanging information in a semantically meaningful way. Unfortunately, they suffer from two significant problems: They typically require a comprehensive schema design before they can be used to store or share information an...
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| Veröffentlicht in: | IEEE transactions on knowledge and data engineering 2004-07, Vol.16 (7), p.787-798 |
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| container_title | IEEE transactions on knowledge and data engineering |
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| creator | Halevy, A.Y. Ives, Z.G. Jayant Madhavan Mork, P. Suciu, D. Tatarinov, I. |
| description | Intuitively, data management and data integration tools are well-suited for exchanging information in a semantically meaningful way. Unfortunately, they suffer from two significant problems: They typically require a comprehensive schema design before they can be used to store or share information and they are difficult to extend because schema evolution is heavyweight and may break backward compatibility. As a result, many small-scale data sharing tasks are more easily facilitated by nondatabase-oriented tools that have little support for semantics. The goal of the peer data management system (PDMS) is to address this need: We propose the use of a decentralized, easily extensible data management architecture in which any user can contribute new data, schema information, or even mappings between other peers' schemes. PDMSs represent a natural step beyond data integration systems, replacing their single logical schema with an interlinked collection of semantic mappings between peers' individual schemas. This paper describes-several aspects of the Piazza PDMS, including the schema mediation formalism, query answering and optimization algorithms, and the relevance of PDMSs to the semantic Web. |
| doi_str_mv | 10.1109/TKDE.2004.1318562 |
| format | Article |
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| subjects | Algorithms Data integration Data management Database languages Extensibility Investments Large-scale systems Mapping Mediation Memory Resource description framework Semantic Web Semantics Silicone resins Standardization Stores Studies Systems integration Terminology XML |
| title | The Piazza peer data management system |
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