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J. De Leeuw (1987)
Revue de Statistique Appliquée
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J. De Leeuw (1987)
Revue de Statistique Appliquée
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Antoine De Falguerolles, Peter G.M. Van Der Heijden (2002)
Annales de la Faculté des sciences de Toulouse : Mathématiques
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Gene Howard Golub (1968)
Aplikace matematiky
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Krzysztof Simek (2003)
International Journal of Applied Mathematics and Computer Science
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Recently, data on multiple gene expression at sequential time points were analyzed using the Singular Value Decomposition (SVD) as a means to capture dominant trends, called characteristic modes, followed by the fitting of a linear discrete-time dynamical system in which the expression values at a given time point are linear combinations of the values at a previous time point. We attempt to address several aspects of the method. To obtain the model, we formulate a nonlinear optimization...
Andreea Moldovan, Radu Boţ, Gert Wanka (2005)
International Journal of Applied Mathematics and Computer Science
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Since the huge database of patent documents is continuously increasing, the issue of classifying, updating and retrieving patent documents turned into an acute necessity. Therefore, we investigate the efficiency of applying Latent Semantic Indexing, an automatic indexing method of information retrieval, to some classes of patent documents from the United States Patent Classification System. We present some experiments that provide the optimal number of dimensions for the Latent Semantic...
María José Sodupe Zurbano (1986)
Extracta Mathematicae
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