MetaCube XTM: A multidimensional metadata approach for semantic web warehousing systems
Thanh Binh Nguyen
A Min Tjoa
|Title||MetaCube XTM: A multidimensional metadata approach for semantic web warehousing systems|
|Booktitle||Proc. 5th Int. Conf. on Data Warehousing and Knowledge Discovery (DaWaK 03)|
|Series||Lecture Notes in Computer Science|
|Address||Prague, Czech Republic|
Providing access and search among multiple, heterogeneous, distributed and autonomous data warehouses has become one of the main issues in the current research. In this paper, we propose to integrate data warehouse schema information by using metadata represented in XTM (XML Topic Maps) to bridge possible semantic heterogeneity. A detailed description of an architecture that enables the efficient processing of user queries involving data from heterogeneous is presented. As a result, the interoperability is accomplished by a schema integration based on XTM. Furthermore, important implementation aspects of the MetaCube-XTM prototype, which makes use of the Meta Data Interchange Specification (MDIS), and the Open Information Model, complete the presentation of our approach.