A wrapper&mediator prototype for web data warehouses

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 inform...

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Detalles Bibliográficos
Autores principales: Giaudrone, Verónica, Guerra, Marcelo, Vaccaro, Marcelo, Motz, Regina, Marotta, Adriana
Formato: Objeto de conferencia
Lenguaje:Inglés
Publicado: 2005
Materias:
Ciencias Informáticas
Data warehouse and repository
wrapper
mediator
ontology
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/23160
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-23160
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Informáticas
Data warehouse and repository
wrapper
mediator
ontology
spellingShingle Ciencias Informáticas
Data warehouse and repository
wrapper
mediator
ontology
Giaudrone, Verónica
Guerra, Marcelo
Vaccaro, Marcelo
Motz, Regina
Marotta, Adriana
A wrapper&mediator prototype for web data warehouses
topic_facet Ciencias Informáticas
Data warehouse and repository
wrapper
mediator
ontology
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.
format Objeto de conferencia
Objeto de conferencia
author Giaudrone, Verónica
Guerra, Marcelo
Vaccaro, Marcelo
Motz, Regina
Marotta, Adriana
author_facet Giaudrone, Verónica
Guerra, Marcelo
Vaccaro, Marcelo
Motz, Regina
Marotta, Adriana
author_sort Giaudrone, Verónica
title A wrapper&mediator prototype for web data warehouses
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 wrapper&mediator prototype for web data warehouses
publishDate 2005
url http://sedici.unlp.edu.ar/handle/10915/23160
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