TY - GEN
T1 - Semantic integration and querying of heterogeneous data sources using a hypergraph data model
AU - Theodoratos, Dimitri
N1 - Publisher Copyright:
© Springer-Verlag Berlin Heidelberg 2002.
PY - 2002
Y1 - 2002
N2 - Information integration in the World Wide Web has evolved to a new framework where the information is represented and manipulated using a wide range of modeling languages. Current approaches to data integration use wrappers to convert the different modeling languages into a common data model. In this work we use a nested hypergraph based data model (called HDM) as a common data model for integrating different structured or semi-structured data. We present a hypergraph query language (HQL) that allows the integration of the wrapped data sources through the creation of views for mediators, and the querying of the wrapped data sources and the mediator views by the end users.We also show that HQL queries (views) can be constructed from other views and/or source schemas using a set of primitive transformations. Our integration architecture is flexible and allows some (or all) of the views in a mediator to be materialized.
AB - Information integration in the World Wide Web has evolved to a new framework where the information is represented and manipulated using a wide range of modeling languages. Current approaches to data integration use wrappers to convert the different modeling languages into a common data model. In this work we use a nested hypergraph based data model (called HDM) as a common data model for integrating different structured or semi-structured data. We present a hypergraph query language (HQL) that allows the integration of the wrapped data sources through the creation of views for mediators, and the querying of the wrapped data sources and the mediator views by the end users.We also show that HQL queries (views) can be constructed from other views and/or source schemas using a set of primitive transformations. Our integration architecture is flexible and allows some (or all) of the views in a mediator to be materialized.
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U2 - 10.1007/3-540-45495-0_19
DO - 10.1007/3-540-45495-0_19
M3 - Conference contribution
AN - SCOPUS:84957795319
SN - 3540439056
SN - 9783540439059
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 166
EP - 182
BT - Advances in Databases - 19th British National Conference on Databases, BNCOD 19, Proceedings
A2 - Eaglestone, Barry
A2 - North, Siobhan
A2 - Poulovassilis, Alexandra
PB - Springer Verlag
T2 - 19th British National Conference on Databases, BNCOD 2002
Y2 - 17 July 2002 through 19 July 2002
ER -