Modeling conditional and marginal association in contingency tables
Wicher P. Bergsma, Tamás Rudas (2002)
Annales de la Faculté des sciences de Toulouse : Mathématiques
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Wicher P. Bergsma, Tamás Rudas (2002)
Annales de la Faculté des sciences de Toulouse : Mathématiques
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Palejev, Dean (2012)
Serdica Journal of Computing
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We present a test for identifying clusters in high dimensional data based on the k-means algorithm when the null hypothesis is spherical normal. We show that projection techniques used for evaluating validity of clusters may be misleading for such data. In particular, we demonstrate that increasingly well-separated clusters are identified as the dimensionality increases, when no such clusters exist. Furthermore, in a case of true bimodality, increasing the dimensionality makes identifying...
Gao, Xin, Xu, Hong, Ye, Dong (2009)
International Journal of Mathematics and Mathematical Sciences
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Aryal, Gokarna, Nadarajah, Saralees (2004)
Serdica Mathematical Journal
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2000 Mathematics Subject Classification: 33C90, 62E99. The Fisher information matrix for three generalized beta distributions are derived.
Kotnik, Tadej, van de Lune, Jan (2004)
Experimental Mathematics
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Daniel Hlubinka (2003)
Mathematica Bohemica
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The prediction of size extremes in Wicksell’s corpuscle problem with oblate spheroids is considered. Three-dimensional particles are represented by their planar sections (profiles) and the problem is to predict their extremal size under the assumption of a constant shape factor. The stability of the domain of attraction of the size extremes is proved under the tail equivalence condition. A simple procedure is proposed of evaluating the normalizing constants from the tail behaviour of...
Baláž, Vladimír, Liardet, Pierre, Strauch, Oto (2010)
Integers
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B. Levin, N. Timofeev (1975)
Acta Arithmetica
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