2008
DOI: 10.1109/tkde.2007.190746
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Integrating Data Warehouses with Web Data: A Survey

Abstract: Abstract-This paper surveys the most relevant research on combining Data Warehouse (DW) and Web data. It studies the XML technologies that are currently being used to integrate, store, query, and retrieve Web data and their application to DWs. The paper reviews different DW distributed architectures and the use of XML languages as an integration tool in these systems. It also introduces the problem of dealing with semistructured data in a DW. It studies Web data repositories, the design of multidimensional dat… Show more

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Cited by 103 publications
(35 citation statements)
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References 55 publications
(151 reference statements)
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“…As a matter of fact, the origin of OLAP technology can be traced way back in 1962.It was not until 1993 that the term OLAP was coined in the codd white paper authored by the highly esteemed database researcher Ted codd, who also established the 12 rules for an OLAP product. Like many other applications, it has undergone several stages of evolution whose patterns of progress are relatively intricate to follow through [4].…”
Section: Background Historymentioning
confidence: 99%
“…As a matter of fact, the origin of OLAP technology can be traced way back in 1962.It was not until 1993 that the term OLAP was coined in the codd white paper authored by the highly esteemed database researcher Ted codd, who also established the 12 rules for an OLAP product. Like many other applications, it has undergone several stages of evolution whose patterns of progress are relatively intricate to follow through [4].…”
Section: Background Historymentioning
confidence: 99%
“…Publishing and consuming statistical data over the Web often is based on XML [12]. There are XML standards to transfer statistical information, e.g., XBRL, SDMX, and DDI.…”
Section: Related Workmentioning
confidence: 99%
“…OWL está basado en DL pero en la figura se muestra la ontología en DL porque su sintaxis es bastante menos verbosa y más entendible que la sintaxis OWL. Los conceptos en negrita son conceptos externos, es decir, esos 2 conceptos junto con todas sus subclases se toman de ontologías de dominio externas. Tal y como muestra la figura, un paciente tiene asociados una serie de datos personales además de varios informes (Reports), los cuales almacenan los resultados de los análisis de sangre, (definidos en la ontología GALEN 4 ), los exámenes reumatológicos, el diagnóstico (definido en la ontología NCI 5 ) y el tratamiento.…”
Section: Escenario De Aplicaciónunclassified
“…Estas herramientas se apoyan en las estructuras multidimensionales (MD) que componen un almacén de datos como los hechos y las jerarquías de las dimensiones, las cuales permiten al analista explorar y agregar la información con distinto nivel de detalle. Aunque el análisis OLAP ha ganado gran aceptación como herramienta de análisis en aplicaciones de negocio tradicionales, el aumento de repositorios que contienen datos con una estructura más rica y compleja que la típica estructura de datos relacional, sugiere el estudio y adaptación de las técnicas OLAP a este nuevo tipo de fuentes de datos [2], [3].…”
Section: Introductionunclassified