Web-enabled temporal OLAP
Commercial OLAP systems usually consider OLAP dimensions as static entities. In practice, dimension updates are often necessary in order to adapt the multidimensional database to changing requirements. Query languages are then needed to retrieve historical information from a data warehouse. Although...
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2006
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07695269_v_n_p220_Vaisman http://hdl.handle.net/20.500.12110/paper_07695269_v_n_p220_Vaisman |
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paper:paper_07695269_v_n_p220_Vaisman2023-06-08T15:45:47Z Web-enabled temporal OLAP Data warehousing OLAP Temporal databases Temporal OLAP Data structures Data warehouses Query processing Software engineering XML OLAP Temporal databases Temporal OLAP Web services Commercial OLAP systems usually consider OLAP dimensions as static entities. In practice, dimension updates are often necessary in order to adapt the multidimensional database to changing requirements. Query languages are then needed to retrieve historical information from a data warehouse. Although many proposals addressing temporal OLAP exist, no one supports full operation over the World Wide Web. After introducing a temporal data model supporting historical dimensions and fact table versioning, we present a three-tier architecture based on Web services, SOAP and XML, allowing efficient querying over the Web. In this architecture, XML metadata is stored at the application server in the form of XML documents containing the data warehouse structure. This allows addressing most of the requests (navigation through time, updates, and queries) without accessing the data warehouse. We present our implementation, and also discuss query processing issues, like answering historical queries using materialized views. © 2006 IEEE. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07695269_v_n_p220_Vaisman http://hdl.handle.net/20.500.12110/paper_07695269_v_n_p220_Vaisman |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Data warehousing OLAP Temporal databases Temporal OLAP Data structures Data warehouses Query processing Software engineering XML OLAP Temporal databases Temporal OLAP Web services |
spellingShingle |
Data warehousing OLAP Temporal databases Temporal OLAP Data structures Data warehouses Query processing Software engineering XML OLAP Temporal databases Temporal OLAP Web services Web-enabled temporal OLAP |
topic_facet |
Data warehousing OLAP Temporal databases Temporal OLAP Data structures Data warehouses Query processing Software engineering XML OLAP Temporal databases Temporal OLAP Web services |
description |
Commercial OLAP systems usually consider OLAP dimensions as static entities. In practice, dimension updates are often necessary in order to adapt the multidimensional database to changing requirements. Query languages are then needed to retrieve historical information from a data warehouse. Although many proposals addressing temporal OLAP exist, no one supports full operation over the World Wide Web. After introducing a temporal data model supporting historical dimensions and fact table versioning, we present a three-tier architecture based on Web services, SOAP and XML, allowing efficient querying over the Web. In this architecture, XML metadata is stored at the application server in the form of XML documents containing the data warehouse structure. This allows addressing most of the requests (navigation through time, updates, and queries) without accessing the data warehouse. We present our implementation, and also discuss query processing issues, like answering historical queries using materialized views. © 2006 IEEE. |
title |
Web-enabled temporal OLAP |
title_short |
Web-enabled temporal OLAP |
title_full |
Web-enabled temporal OLAP |
title_fullStr |
Web-enabled temporal OLAP |
title_full_unstemmed |
Web-enabled temporal OLAP |
title_sort |
web-enabled temporal olap |
publishDate |
2006 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07695269_v_n_p220_Vaisman http://hdl.handle.net/20.500.12110/paper_07695269_v_n_p220_Vaisman |
_version_ |
1768546589150806016 |