343 Hits in 7.0 sec

Finding an application-appropriate model for XML data warehouses

Franck Ravat, Olivier Teste, Ronan Tournier, Gilles Zurfluh
2010 Information Systems  
Decision support systems help the decision making process with the use of OLAP (On-Line Analytical Processing) and data warehouses. These systems allow the analysis of corporate data.  ...  In data-centric XML documents, the order is not important.  ...  Fig. 9 9 The XML data federation architectureThe major issues are:-Page 17/49-− The fusion of XML and data warehouse data as a result of the OLAP queries; Fig. 10 The 10 XML data warehouse architecture  ... 
doi:10.1016/ fatcat:2qeuwx3cx5a5fjxttaobsx2bdy

XML Warehousing and OLAP [article]

Hadj Mahboubi, Jérôme Darmont
2017 arXiv   pre-print
We also discuss the issues and future trends in this area and illustrate this topic by presenting the design of a unified, XML data warehouse architecture and a set of XOLAP operators expressed in an XML  ...  XML-OLAP or XOLAP; Wang et al., 2005).  ...  XML Document Warehouses Finally, Zhang et al. (2005) propose an approach to materialize XML data warehouses based on frequent query patterns discovered from historical queries.  ... 
arXiv:1701.08612v1 fatcat:ne65xezff5hltdo2sbdwlr6lay

Integrating Data Warehouses with Web Data: A Survey

J.M. Perez, R. Berlanga, M.J. Aramburu, T.B. Pedersen
2008 IEEE Transactions on Knowledge and Data Engineering  
Index Terms-Data warehouse repository, XML/XSL/RDF. Ç 940  ...  It also introduces the problem of dealing with semistructured data in a DW.  ...  During recent years, there has also been a large interest in Data Warehouse (DW) [3] and OnLine Analytical Processing (OLAP) [4] technologies.  ... 
doi:10.1109/tkde.2007.190746 fatcat:drcxlccqqfaifcjuzbzspyzlpu

Integrating Different Grain Levels in a Medical Data Warehouse Federation [chapter]

Marko Banek, A Min Tjoa, Nevena Stolba
2006 Lecture Notes in Computer Science  
In order to insure a better protection of highly sensitive healthcare data, the warehouse is not created physically but as a federated system.  ...  The paper describes the conceptual design of a health insurance data warehouse federation (HEWAF) aimed at supporting evidence-based medicine.  ...  They distinguish three different ways XML data can be included into OLAP queries. First, queries may be decorated with XML data.  ... 
doi:10.1007/11823728_18 fatcat:ye6x3doafvefddhqslfzmhfuni

X-WACoDa: An XML-based approach for Warehousing and Analyzing Complex Data [article]

Hadj Mahboubi, Sabine Loudcher, Jérôme Darmont
2017 arXiv   pre-print
In this paper, we propose a unified XML warehouse reference model that synthesizes and enhances related work, and fits into a global XML warehousing and analysis approach we have developed.  ...  Unfortunately, no standard XML data warehouse architecture emerges.  ...  XML-OLAP is based on an XML warehouse where every fact and dimension is stored as an XML document.  ... 
arXiv:1701.08033v1 fatcat:dfuzbfzhizhapnp5kuqxtujq6e

XML-OLAP: A Multidimensional Analysis Framework for XML Warehouses [chapter]

Byung-Kwon Park, Hyoil Han, Il-Yeol Song
2005 Lecture Notes in Computer Science  
We base XML-OLAP on XML warehouses where every fact data as well as dimension data are stored as XML documents. We build XML cubes from XML warehouses.  ...  In this paper, we propose a new framework for multidimensional analysis of XML documents, which we call XML-OLAP.  ...  We base XML-OLAP on XML warehouses where every fact data as well as dimension data is stored as an XML document. XML cubes are built from XML warehouses.  ... 
doi:10.1007/11546849_4 fatcat:hwwgbbrjwzhuhh3yns3fburfoe

A relational-XML data warehouse for data aggregation with SQL and XQuery

Joseph Fong, Herbert Shiu, Davy Cheung
2008 Software, Practice & Experience  
To enable business intelligence query activities, a corporation needs to build a data warehouse on top of a middleware to aggregate summarized data from various heterogeneous database systems.  ...  SQL and XQuery can be used to process the materialized relational and XML data cubes of aggregated data.  ...  Pedersen [22] introduced a federated query language SQL XM that allows XML data to be used directly in an OLAP query to furnish multidimensional cubes with external XML data, and to group and select  ... 
doi:10.1002/spe.868 fatcat:tuq6y5atajb5rghbhlibld5hdi

Managing Complex Multidimensional Data [chapter]

Torben Bach Pedersen
2013 Lecture Notes in Business Information Processing  
Query Processing and Optimization • Naive strategy  Fetch necessary XML data and store in Temp DB  Fetch necessary OLAP data and store in Temp DB  Join XML and OLAP data + perform XML-specific  ...  handled by Federation Manager (FM) • XML Data stored in XML Component (Tamino) • OLAP data stored in OLAP Component (MS Analysis) • Link, Temp, and Meta-data stored in RDBMS • FM fetches relevant  ... 
doi:10.1007/978-3-642-36318-4_1 fatcat:wd3m3zwjpnef3hpe6wmt5oxn3a

Report on the ACM sixth international workshop on data warehousing and OLAP (DOLAP 2003)

Stefano Rizzi, Il-Yeol Song
2004 SIGIR Forum  
After a very careful review process, 12 high-quality papers were selected among the submissions; these papers were organized into four sessions, described in Section 2: OLAP; XML and architecture; Query  ...  Query processing Since the very first editions, query processing has always been a popular topic for DOLAP. This year, we had two presentations related to query processing.  ... 
doi:10.1145/986278.986290 fatcat:y7giueg62jdevj7kvpocjdbata

Collaborative Business Intelligence [chapter]

Stefano Rizzi
2012 Lecture Notes in Business Information Processing  
, federative approaches, where the integration is virtual and based on a global schema, and peer-to-peer approaches, that do not rely on a global schema to integrate the component data warehouses.  ...  Then we outline a new peer-to-peer framework, called Business Intelligence Network, where peers expose querying functionalities aimed at sharing business information for the decision-making process.  ...  An XML-based framework for supporting interoperability of heterogeneous data warehouses in a federation scenario is described in [27] .  ... 
doi:10.1007/978-3-642-27358-2_9 fatcat:dcxgdkaz2rdm7edfac5tcjrc4i

Cloud BI: Future of business intelligence in the Cloud

Hussain Al-Aqrabi, Lu Liu, Richard Hill, Nick Antonopoulos
2015 Journal of computer and system sciences (Print)  
of data warehouses and the online analytical processing (OLAP) demands on the underlying networking.  ...  Business Intelligence (BI) is a highly resource intensive system requiring large-scale parallel processing and significant storage capacities to host data warehouses.  ...  Acknowledgment The work reported in this paper has been supported by the Sino-  ... 
doi:10.1016/j.jcss.2014.06.013 fatcat:gashotik6bfjbkyam5jmc6bgra

Cloud BI: Future of Business Intelligence in the Cloud [article]

Hussain Al-Aqrabi, Lu Liu, Richard Hill, Nick Antonopoulos
2019 arXiv   pre-print
of data warehouses and the online analytical processing (OLAP) demands on the underlying networking.  ...  Business Intelligence (BI) is a highly resource intensive system requiring large-scale parallel processing and significant storage capacities to host data warehouses.  ...  The data warehouses and OLAP cubes can be formed employing multidimensional and hierarchical XML data files.  ... 
arXiv:1901.08151v1 fatcat:utzep5z2rjdlvdyt6trogdro5e


2012 Issues in Information Systems  
In this paper we propose a method called DMQC, Distributed Multilevel Query Cache, which supplements the traditional data warehouse and provides a less costly method for storage and analysis of data.  ...  To understand DMQC we first give a brief overview of how distributed and federated data warehouses systems work.  ...  In the reporting process, On-Line Analytical Processing (OLAP) is required to arrange data in a cube for fast data analysis from multiples perspectives.  ... 
doi:10.48009/2_iis_2012_51-57 fatcat:ed2mb6z65feh3na5lymtl24kga

Towards a Novel OLAP Interface for Distributed Data Warehouses [chapter]

Ayman Ammoura, Osmar Zaïane, Randy Goebel
2001 Lecture Notes in Computer Science  
DIVE-ON is a system prototype that consolidates distributed data sources into a multidimensional data model, transports user-specified views to a 3D immersive display, and presents various data attributes  ...  We present a framework for visualizing remote distributed data sources using a multi-user immersive virtual reality environment.  ...  XML Multidimensional Query Language (XMDQL) Our query language choice is an XML-based query language, XMDQL, which we use to interact with the VDW in order to manage and access the available data.  ... 
doi:10.1007/3-540-44801-2_18 fatcat:a4asyk4cl5fwvouqxfyk3sgcvy

Achieving adaptivity for OLAP-XML federations

Dennis Pedersen, Torben Bach Pedersen
2003 Proceedings of the 6th ACM international workshop on Data warehousing and OLAP - DOLAP '03  
Abstract OLAP query Abstract OLAP query Abstract XML queries Abstract XML query Query Request Query Query Update  ...  Earlier work has resulted in an extension of the TARGIT system, allowing external XML data to be used as dimensions and measures in OLAP databases.  ...  Split the multidimensional query into a pure OLAP query and a set of XML queries. 2. Evaluate these queries in parallel. 3.  ... 
doi:10.1145/956065.956066 fatcat:dxq5ip2g4ffr5panakdepjmhzu
« Previous Showing results 1 — 15 out of 343 results