Developing intelligent tools for the integration of information extracted from multiple heterogeneous sources is a challenging issue to effectively exploit the numerous sources available on-line in global information systems. In this paper, we propose intelligent, tool-supported techniques to information extraction and integration from both structured and semistructured data sources. An object-oriented language, with an underlying Description Logic, called ODLI3 , derived from the standard ODMG is introduced for information extraction. ODLI3 descriptions of the source schemas are exploited first to set a Common Thesaurus for the sources. Information integration is then performed in a semiautomatic way by exploiting the knowledge in the Common Thesaurus and ODLI 3 descriptions of source schemas with a combination of clustering techniques and Description Logics. This integration process gives rise to a virtual integrated view of the underlying sources for which mapping rules and integrity constraints are specified to handle heterogeneity. Integration techniques described in the paper are provided in the framework of the MOMIS system based on a conventional wrapper/mediator architecture.

Semantic Integration of Heterogeneous Information Sources / Bergamaschi, Sonia; Castano, S.; Vincini, Maurizio; Beneventano, Domenico. - In: DATA & KNOWLEDGE ENGINEERING. - ISSN 0169-023X. - STAMPA. - 36:(2001), pp. 215-249. [10.1016/S0169-023X(00)00047-1]

Semantic Integration of Heterogeneous Information Sources

BERGAMASCHI, Sonia;VINCINI, Maurizio;BENEVENTANO, Domenico
2001-01-01

Abstract

Developing intelligent tools for the integration of information extracted from multiple heterogeneous sources is a challenging issue to effectively exploit the numerous sources available on-line in global information systems. In this paper, we propose intelligent, tool-supported techniques to information extraction and integration from both structured and semistructured data sources. An object-oriented language, with an underlying Description Logic, called ODLI3 , derived from the standard ODMG is introduced for information extraction. ODLI3 descriptions of the source schemas are exploited first to set a Common Thesaurus for the sources. Information integration is then performed in a semiautomatic way by exploiting the knowledge in the Common Thesaurus and ODLI 3 descriptions of source schemas with a combination of clustering techniques and Description Logics. This integration process gives rise to a virtual integrated view of the underlying sources for which mapping rules and integrity constraints are specified to handle heterogeneity. Integration techniques described in the paper are provided in the framework of the MOMIS system based on a conventional wrapper/mediator architecture.
36
215
249
Semantic Integration of Heterogeneous Information Sources / Bergamaschi, Sonia; Castano, S.; Vincini, Maurizio; Beneventano, Domenico. - In: DATA & KNOWLEDGE ENGINEERING. - ISSN 0169-023X. - STAMPA. - 36:(2001), pp. 215-249. [10.1016/S0169-023X(00)00047-1]
Bergamaschi, Sonia; Castano, S.; Vincini, Maurizio; Beneventano, Domenico
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/744036
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 236
  • ???jsp.display-item.citation.isi??? 161
social impact