Persistence software: bridging object-oriented programming and relational databases
SIGMOD '93 Proceedings of the 1993 ACM SIGMOD international conference on Management of data
Ariadne: a system for constructing mediators for Internet sources
SIGMOD '98 Proceedings of the 1998 ACM SIGMOD international conference on Management of data
Web farming for the data warehouse
Web farming for the data warehouse
A layered architecture for querying dynamic Web content
SIGMOD '99 Proceedings of the 1999 ACM SIGMOD international conference on Management of data
Web Warehousing and Knowledge Management
Web Warehousing and Knowledge Management
A Framework for Warehousing the Web Contents
ICSC '99 Proceedings of the 5th International Computer Science Conference on Internet Applications
Context-Based Prefetch for Implementing Objects on Relations
VLDB '99 Proceedings of the 25th International Conference on Very Large Data Bases
O-O, What Have They Done to DB2?
VLDB '99 Proceedings of the 25th International Conference on Very Large Data Bases
WebSuite: A Tool Suite for Harnessing Web Data
WebDB '98 Selected papers from the International Workshop on The World Wide Web and Databases
Meta-Data Based Mediator Generation
COOPIS '98 Proceedings of the 3rd IFCIS International Conference on Cooperative Information Systems
Information Integration: Conceptual Modeling and Reasoning Support
COOPIS '98 Proceedings of the 3rd IFCIS International Conference on Cooperative Information Systems
Web Warehousing: Design and Issues
ER '98 Proceedings of the Workshops on Data Warehousing and Data Mining: Advances in Database Technologies
Web Warehousing: An Algebra for Web Information
ADL '98 Proceedings of the Advances in Digital Libraries Conference
Selectively Materializing Data in Mediators by Analyzing User Queries
COOPIS '99 Proceedings of the Fourth IECIS International Conference on Cooperative Information Systems
Semantic Metadata for the Integration of Web-based Data for Electronic Commerce
WECWIS '99 Proceedings of the International Workshop on Advance Issues of E-Commerce and Web-Based Information Systems
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Business decisions must rely not only on company-internal data but also on external data from competitors or relevant events. This information can be obtained from the WWW but must be integrated with the data in a company's data warehouse. In this paper we discuss a system architecture for warehousing Web content for OLAP and DSS. A self-describing object model is used to make the implicit modeling and context assumptions explicit, both for the data obtained from the Web and the data already in the data warehouse. A domain-specific ontology provides a common interpretation basis for data and metadata. We propose an object-relational mapping that takes into consideration the peculiarities of relational data warehouses based on a star schema and propose a mapping rule language to describe the necessary transformation rules. The system framework described in this paper has been implemented in Java.