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Mind your vocabulary: query mapping across heterogeneous information sources
SIGMOD '99 Proceedings of the 1999 ACM SIGMOD international conference on Management of data
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Journal of the ACM (JACM)
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Foundations of Databases: The Logical Level
Foundations of Databases: The Logical Level
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ICDT '03 Proceedings of the 9th International Conference on Database Theory
Complex Queries in DHT-based Peer-to-Peer Networks
IPTPS '01 Revised Papers from the First International Workshop on Peer-to-Peer Systems
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The VLDB Journal — The International Journal on Very Large Data Bases
Mapping data in peer-to-peer systems: semantics and algorithmic issues
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
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ACM SIGMOD Record
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VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
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VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
Kanata: adaptation and evolution in data sharing systems
ACM SIGMOD Record
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VLDB '05 Proceedings of the 31st international conference on Very large data bases
PDST: a peer database simulation tool for data sharing systems
Proceedings of the 1st international conference on Simulation tools and techniques for communications, networks and systems & workshops
Schema AND Data: A Holistic Approach to Mapping, Resolution and Fusion in Information Integration
ER '09 Proceedings of the 28th International Conference on Conceptual Modeling
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DBISP2P'05/06 Proceedings of the 2005/2006 international conference on Databases, information systems, and peer-to-peer computing
Preserving privacy and fairness in peer-to-peer data integration
Proceedings of the 2010 ACM SIGMOD International Conference on Management of data
Query translation between sources in peer-to-peer database sharing systems
International Journal of Knowledge Engineering and Data Mining
Polymorphic queries for P2P systems
Information Systems
Don’t mind your vocabulary: data sharing across heterogeneous peers
OTM'05 Proceedings of the 2005 Confederated international conference on On the Move to Meaningful Internet Systems - Volume >Part I
Data sharing and querying for peer-to-peer data management systems
EDBT'04 Proceedings of the 2004 international conference on Current Trends in Database Technology
Supporting complex query with structured overlays in schema-based p2p system
WISE'06 Proceedings of the 7th international conference on Web Information Systems
Relational peer to peer database management systems: a survey
Journal of Computational Methods in Sciences and Engineering
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We consider the problem of data sharing between autonomous data sources in an environment where constraints cannot be placed on the shared contents of sources. Our solutions rely on the use of mapping tables which define how data from different sources are associated. In this setting, the answer to a local query, that is, a query posed against the schema of a single source, is augmented by retrieving related data from associated sources. This retrieval of data is achieved by translating, through mapping tables, the local query into a set of queries that are executed against the associated sources. We consider both sound translations (which only retrieve correct answers) and complete translations (which retrieve all correct answers, and no incorrect answers) and we present algorithms to compute such translations. Our solutions are implemented and tested experimentally and we describe here our key findings.