A wrapper&mediator prototype for web data warehouses

Autores
Giaudrone, Verónica; Guerra, Marcelo; Vaccaro, Marcelo; Motz, Regina; Marotta, Adriana
Año de publicación
2005
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
There is a lot of information published on the Web that can be useful for decision-making. The work reported in this paper focuses on how to extract and integrate this information in order to construct a Data Warehouse that makes it available. The manual process of extracting and integrating information is expensive and complex. That is the reason why we suggest the development of a tool, based on Wrappers and Mediators, which allows the extraction of information from the Web and integrate it automatically. Wrappers are in charge of information extraction, which is based on page’s structure and a query enriched using a domain ontology. Mediators perform data integration in order to combine information from several sources, solving the conflicts that may appear due to contradictory information, taking into account the trust of the sources. An important characteristic we consider in our proposal is that information contained in the Web changes constantly; therefore a mechanism that supports system evolution becomes essential. For this reason we propose the generation of metadata that keeps the traceability of the process, allowing managing the impact of the source changes on the whole system.
II Workshop de Ingeniería de Software y Bases de Datos (WISBD)
Red de Universidades con Carreras en Informática (RedUNCI)
Materia
Ciencias Informáticas
Data warehouse and repository
wrapper
mediator
ontology
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/23160

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spelling A wrapper&mediator prototype for web data warehousesGiaudrone, VerónicaGuerra, MarceloVaccaro, MarceloMotz, ReginaMarotta, AdrianaCiencias InformáticasData warehouse and repositorywrappermediatorontologyThere is a lot of information published on the Web that can be useful for decision-making. The work reported in this paper focuses on how to extract and integrate this information in order to construct a Data Warehouse that makes it available. The manual process of extracting and integrating information is expensive and complex. That is the reason why we suggest the development of a tool, based on Wrappers and Mediators, which allows the extraction of information from the Web and integrate it automatically. Wrappers are in charge of information extraction, which is based on page’s structure and a query enriched using a domain ontology. Mediators perform data integration in order to combine information from several sources, solving the conflicts that may appear due to contradictory information, taking into account the trust of the sources. An important characteristic we consider in our proposal is that information contained in the Web changes constantly; therefore a mechanism that supports system evolution becomes essential. For this reason we propose the generation of metadata that keeps the traceability of the process, allowing managing the impact of the source changes on the whole system.II Workshop de Ingeniería de Software y Bases de Datos (WISBD)Red de Universidades con Carreras en Informática (RedUNCI)2005-10info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionObjeto de conferenciahttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/23160enginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/2.5/ar/Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Argentina (CC BY-NC-SA 2.5)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T10:55:21Zoai:sedici.unlp.edu.ar:10915/23160Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 10:55:21.775SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv A wrapper&mediator prototype for web data warehouses
title A wrapper&mediator prototype for web data warehouses
spellingShingle A wrapper&mediator prototype for web data warehouses
Giaudrone, Verónica
Ciencias Informáticas
Data warehouse and repository
wrapper
mediator
ontology
title_short A wrapper&mediator prototype for web data warehouses
title_full A wrapper&mediator prototype for web data warehouses
title_fullStr A wrapper&mediator prototype for web data warehouses
title_full_unstemmed A wrapper&mediator prototype for web data warehouses
title_sort A wrapper&mediator prototype for web data warehouses
dc.creator.none.fl_str_mv Giaudrone, Verónica
Guerra, Marcelo
Vaccaro, Marcelo
Motz, Regina
Marotta, Adriana
author Giaudrone, Verónica
author_facet Giaudrone, Verónica
Guerra, Marcelo
Vaccaro, Marcelo
Motz, Regina
Marotta, Adriana
author_role author
author2 Guerra, Marcelo
Vaccaro, Marcelo
Motz, Regina
Marotta, Adriana
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Informáticas
Data warehouse and repository
wrapper
mediator
ontology
topic Ciencias Informáticas
Data warehouse and repository
wrapper
mediator
ontology
dc.description.none.fl_txt_mv There is a lot of information published on the Web that can be useful for decision-making. The work reported in this paper focuses on how to extract and integrate this information in order to construct a Data Warehouse that makes it available. The manual process of extracting and integrating information is expensive and complex. That is the reason why we suggest the development of a tool, based on Wrappers and Mediators, which allows the extraction of information from the Web and integrate it automatically. Wrappers are in charge of information extraction, which is based on page’s structure and a query enriched using a domain ontology. Mediators perform data integration in order to combine information from several sources, solving the conflicts that may appear due to contradictory information, taking into account the trust of the sources. An important characteristic we consider in our proposal is that information contained in the Web changes constantly; therefore a mechanism that supports system evolution becomes essential. For this reason we propose the generation of metadata that keeps the traceability of the process, allowing managing the impact of the source changes on the whole system.
II Workshop de Ingeniería de Software y Bases de Datos (WISBD)
Red de Universidades con Carreras en Informática (RedUNCI)
description There is a lot of information published on the Web that can be useful for decision-making. The work reported in this paper focuses on how to extract and integrate this information in order to construct a Data Warehouse that makes it available. The manual process of extracting and integrating information is expensive and complex. That is the reason why we suggest the development of a tool, based on Wrappers and Mediators, which allows the extraction of information from the Web and integrate it automatically. Wrappers are in charge of information extraction, which is based on page’s structure and a query enriched using a domain ontology. Mediators perform data integration in order to combine information from several sources, solving the conflicts that may appear due to contradictory information, taking into account the trust of the sources. An important characteristic we consider in our proposal is that information contained in the Web changes constantly; therefore a mechanism that supports system evolution becomes essential. For this reason we propose the generation of metadata that keeps the traceability of the process, allowing managing the impact of the source changes on the whole system.
publishDate 2005
dc.date.none.fl_str_mv 2005-10
dc.type.none.fl_str_mv info:eu-repo/semantics/conferenceObject
info:eu-repo/semantics/publishedVersion
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http://purl.org/coar/resource_type/c_5794
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format conferenceObject
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/23160
url http://sedici.unlp.edu.ar/handle/10915/23160
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Argentina (CC BY-NC-SA 2.5)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Argentina (CC BY-NC-SA 2.5)
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reponame_str SEDICI (UNLP)
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
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