ISBN-10: 3642244661

ISBN-13: 9783642244667

Complaints of the thirty fourth Annual convention of the Gesellschaft für Klassifikation e. V., Karlsruhe, July 21-23, 2010

This quantity offers methods and options to hard difficulties happening on the interface of study fields comparable to info research, computing device technology, operations examine, and statistics. It contains theoretically orientated contributions in addition to papers from numerous software components, the place wisdom from various study instructions is required to discover an sufficient research and interpretation of the saw information that fit optimally the underlying sensible events. Beside conventional type study, the ebook focuses additionally on present pursuits in fields comparable to the research of community info, graphs, and social relationships in addition to on statistical musicology.

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Extra resources for Challenges at the Interface of Data Analysis, Computer Science, and Optimization (Studies in Classification, Data Analysis, and Knowledge Organization)

Sample text

For example, the estimated p-values of the dip test of unimodality (Hartigan and Hartigan 1985) can be used. Beside statistical tests, univariate cluster analysis can be an useful practical tool for an univariate investigation of the variables via decomposition of the heterogeneity of their variances. We recommend separate (univariate) Ward’s clustering that has to be examined for each single variable. As a result, a vector h of so-called criterion values is obtained for every variable that contains the incremental sum of squares when aggregating the data points.

Microsoft Research Faber V (1994) Clustering and the continuous k-means algorithm. Los Alamos Sci 22:138–144 Faber V, Hochberg JG, Kelly PM, Thomas TR, White JM (1994) Concept extraction. A datamining technique. Los Alamos Sci 22:123–137, 145–149 Fisher RA (1936) The use of multiple measurements in taxonomic problems. Ann Eugenics 7: 179–188 Friedman JH, Meulman JJ (2004) Clustering objects on subsets of attributes. pdf Gower JC (1971) A general coefficient of similarity and some of its properties.

Mfj :: : ... :: : ... :: : mf: :: : k Total mk1 m:1 ... ::: mkj m:j ::: ::: mkk m:k mk: n 32 I. Morlini and S. g. n pair of partitions in k groups: SD X k Vk D X k P (11) 2/ parts Vk related to each 2Tk P Q k C k k Pk (12) The components Vk , however, are not similarity indices for each k since they assume values < 1 even if the two partitions in k groups are identical. For this reason, we consider the complement to 1 of each Zk in order to obtain a single similarity index for each pair of partitions: Sk D 1 Zk D Pn 1 j D2 Pj Expression (13) can be written as: Sk D P P C nj D21 Qj Pk Qk C 2Tk Pn 1 Pn 1 j D2 Pj C j D2 Qj P Pj C j ¤k Qj C 2Tk P P j Pj C j Qj j ¤k (13) (14) The index suggested by Fowlkes and Mallows (1983) for two partitions in k groups in our notation is given by: 2Tk Tk Bk D p Dp 2Pk 2Qk Pk Qk (15) The statistics Bk and Sk may be thought of as resulting from two different methods of scaling Tk to lie in the unit interval.

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Challenges at the Interface of Data Analysis, Computer Science, and Optimization (Studies in Classification, Data Analysis, and Knowledge Organization)

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