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Advances in Database Technology - EDBT 2006: 10th by Martin Kersten (auth.), Yannis Ioannidis, Marc H. Scholl,

By Martin Kersten (auth.), Yannis Ioannidis, Marc H. Scholl, Joachim W. Schmidt, Florian Matthes, Mike Hatzopoulos, Klemens Boehm, Alfons Kemper, Torsten Grust, Christian Boehm (eds.)

The sequence of foreign meetings on Extending Database expertise (EDBT) is a longtime and prestigious discussion board for the trade of the most recent study ends up in facts administration. It presents targeted possibilities for database researchers, practitioners, builders, and clients to discover new rules, recommendations, and instruments, and to interchange stories. This quantity includes the complaints of the tenth EDBT convention, held in Munich, Germany, March 27-29, 2006. The convention integrated three keynote talks, fifty six significant and four half-size learn papers in 20 periods, eight business displays in three periods, 1 panel consultation, five tutorials in 7 classes, and 20 demonstrations in four classes. all the examine papers in addition to papers and abstracts from many of the different classes are integrated right here. exceptional individuals of the database and information-retrieval groups introduced the 3 keynotes, which have been all within the spirit of the banner subject matter selected for EDBT 2006: “From Database platforms to common information administration. ” Martin Kersten, a pioneer within the quarter of database aid for ambient software environments and the investigator of numerous kernel database architectures, mentioned a variety of demanding concerns that come up in natural database structures, i. e. , structures that may be embedded in numerous purposes and feature autonomic habit. Alan Smeaton, a pacesetter in content-based retrieval of data in a large choice of media, brought us to the realm of electronic video libraries and challenged us with a number of open difficulties linked to their potent management.

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Additional info for Advances in Database Technology - EDBT 2006: 10th International Conference on Extending Database Technology, Munich, Germany, March 26-31, 2006

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The estimator is not expected to have zero error, but it should lead approximately to the desired compression ratio. In the majority of cases the selected threshold will lead either to higher or lower compression ratio. Intuitively, higher compression (or overestimated threshold) is preferable. This is the case, because then one does not have to resort to the additional phase of dropping randomly some of the retained samples (a sampling that is ‘blind’ and might discard crucial points, such as important local minima or maxima).

23. N. Thaper, S. Guha, P. Indyk, and N. Koudas. “Dynamic multidimensional histograms”. In ACM SIGMOD, 2002. 24. S. Vitter and M. Wang. “Approximate computation of multidimensional aggregates of sparse data using wavelets”. In ACM SIGMOD, 1999. Resource Adaptive Periodicity Estimation of Streaming Data Michail Vlachos, Deepak S. Turaga, and Philip S. J. Watson Research Center, 19 Skyline Dr, Hawthorne, NY Abstract. Streaming environments typically dictate incomplete or approximate algorithm execution, in order to cope with sudden surges in the data rate.

12. Left: Histogram of the threshold estimator error. Right: Cases of overestimated threshold (fewer remaining samples -more desirable) are more frequent than instances of underestimated threshold (1024 being the length of the window). In Fig. 11 we show two instances of the approximated spectrum under limited CPU resources. 41% of the total window points should remain after the load-shedding, given the available processing time. Executing our algorithm on the complete data stream, we monitor the accuracy of the threshold estimator.

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