Cubing web data based on multidimensional arrays

Authors:
Yan Zhu;Alejandro P. Buchmann
Affiliations:
School of Information Science and Technology, Southwest Jiaotong University, Chengdu, China;Department of Computer Science, Darmstadt University of Technology, Darmstadt, Germany
Venue:
ASIAN'05 Proceedings of the 10th Asian Computing Science conference on Advances in computer science: data management on the web
Year:
2005

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A query language for multidimensional arrays: design, implementation, and optimization techniques

SIGMOD '96 Proceedings of the 1996 ACM SIGMOD international conference on Management of data

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Abstract

Data Warehousing and OLAP technologies enable enterprises to achieve Business Intelligence (BI). Since the Web is the largest independent information repository, systematically integrating suitable Web data into a data warehouse will benefit the enterprise. This paper introduces a Web data warehousing system in the MOLAP environment. A transformation approach is proposed to construct a base cube and then aggregates are precomputed over the base cube. To specify the aggregation rules we have developed a SQL style language that uses external functions for retrieving array data, computing aggregates, populating aggregated cubes.