An overview of data warehousing and OLAP technology
ACM SIGMOD Record
Logical Definability and Query Languages over Unranked Trees
LICS '03 Proceedings of the 18th Annual IEEE Symposium on Logic in Computer Science
XCube: XML for data warehouses
DOLAP '03 Proceedings of the 6th ACM international workshop on Data warehousing and OLAP
Extending XQuery for analytics
Proceedings of the 2005 ACM SIGMOD international conference on Management of data
Temporal Logics over Unranked Trees
LICS '05 Proceedings of the 20th Annual IEEE Symposium on Logic in Computer Science
Analytical processing of XML documents: opportunities and challenges
ACM SIGMOD Record
Ix-cubes: iceberg cubes for data warehousing and olap on xml data
Proceedings of the sixteenth ACM conference on Conference on information and knowledge management
A tool for data cube construction from structurally heterogeneous XML documents
Journal of the American Society for Information Science and Technology
LMDQL: link-based and multidimensional query language
Proceedings of the ACM twelfth international workshop on Data warehousing and OLAP
Object-relational complex structures for XML storage
Information and Software Technology
Finding an application-appropriate model for XML data warehouses
Information Systems
A query language for navigation over links
Companion Proceedings of the XIV Brazilian Symposium on Multimedia and the Web
Double-layered schema integration of heterogeneous XML sources
Journal of Systems and Software
XML-OLAP: a multidimensional analysis framework for XML warehouses
DaWaK'05 Proceedings of the 7th international conference on Data Warehousing and Knowledge Discovery
X-warehousing: an XML-based approach for warehousing complex data
ADBIS'06 Proceedings of the 10th East European conference on Advances in Databases and Information Systems
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Current commercial and academic OLAP tools do not process XML data that contains XLink. Aiming at overcoming this issue, this paper proposes an analytical system composed by LMDQL, an analytical query language. Also, the XLDM metamodel is given to model cubes of XML documents with XLink and to deal with syntactic, semantic and structural heterogeneities commonly found in XML documents. As current W3C query languages for navigating in XML documents do not support XLink, XLPath is discussed in this article to provide features for the LMDQL query processing. A prototype system enabling the analytical processing of XML documents that use XLink is also detailed. This prototype includes a driver, named sql2xquery, which performs the mapping of SQL queries into XQuery. To validate the proposed system, a case study and its performance evaluation are presented to analyze the impact of analytical processing over XML/XLink documents.