By Bogdan Czejdo, Malcolm Taylor, Catherine Putonti (auth.), Tatyana Yakhno (eds.)

This quantity includes the court cases of the 1st foreign convention on Advances in details structures (ADVIS) held in Izmir (Turkey), 25{27 October, 2000. This convention was once devoted to the reminiscence of Professor Esen Ozkarahan. He was once nice researcher who made a vital contribution to the advance of data structures. This convention was once equipped via the pc - gineering division of Dokuz Eylul college of Izmir. This division used to be verified in 1994 via the founding chairman Professor Ozkarahan and there he labored for the final ve years of his dwell. the most objective of the convention was once to collect researchers from all over the international operating in di erent components of knowledge structures to percentage new rules and to symbolize their most recent effects. We acquired eighty submissions from 30 international locations. this system Committee chosen forty four papers for presentation on the convention. The invited and authorized contributions hide a wide number of subject matters: - neral features of data structures, information bases, information warehousing, desktop networks, net applied sciences, content-based photograph retrieval, info - trieval, constraint programming and arti cial intelligence. The good fortune of the convention used to be based upon the exertions of a big variety of humans. We gratefully recognize the contributors of this system C- mittee who helped to coordinate the method of refereeing all submitted papers. We additionally thank the entire different experts who reviewed the papers.

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Extra info for Advances in Information Systems: First International Conference, ADVIS 2000 Izmir, Turkey, October 25–27, 2000 Proceedings

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Enhancing Data Quality in Data Warehouse Environments. Communications of the ACM, January 1999, Vol. 42(1), 73–78 2. : Datenqualitäts- und Evaluierungsaspekte von Data Warehouses (in german). Master Thesis, Vienna University of Technology, Institute of Software Technology (E188), 1999 3. : Portfolio Selection. Journal of Finance, Vol. 7(1), March 1952, 77–91 4. : The Optimization of a Quadratic Function Subject to Linear Constraints. Naval Research Logistics Quarterly 3, nos. 1–2 (March–June 1956), 111–133 5.

Data are characterized from a set of roll-up functions, mapping the instance of a dimension level to instances of other dimension level. In statistical databases, [17] presented a comparison of work done in statistical and multidimensional databases. The comparison was made with respect to application areas, conceptual modeling, data structure representation, operations, physical organization aspects and privacy issues. In [3], a framework for Object-Oriented OLAP is introduced. Two major physical implementations exist today: ROLAP and MOLAP and their advantages and disadvantages due to physical implementation were introduced.

Achieving Data Quality in Decision Making Besides conventional analytical processing, the approach described in detail in sections 4 to 6, enables the automatic consideration of data quality, as shown in Fig. 1. In the first case the examined data quality is just an additional property of a fact. It is the user’s responsibility to take advantage of the provided data quality information. Consequently only experienced data warehouse users (experts) are able to “exploit” this kind of knowledge. Similar to the far-reaching effects and consequences of poor data quality [7], the ignorance of that information can have diverse impacts, such as poorer decision making and difficulties to set and execute enterprise strategies.

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