Now showing items 21-28 of 28

    • Clustering of Symbolic Data with Application of Ensemble Approach 

      Pełka, Marcin (Wydawnictwo Uniwersytetu Łódzkiego, 2013)
      Ensemble approaches based on aggregated models have been applied with success to discrimination and regression tasks. Nevertheless this approach can be applied to cluster analysis tasks. Many articles have proved that, ...
    • Optimality of Spring Balance Weighing Designs 

      Graczyk, Małgorzata (Wydawnictwo Uniwersytetu Łódzkiego, 2013)
      In this paper, the problem of existence of optimal spring balance weighing designs is discussed. Two optimality criterions are compared and the appropriate optimality conditions are presented.
    • Properties of Transformation Quantile Regression Model 

      Trzpiot, Grażyna (Wydawnictwo Uniwersytetu Łódzkiego, 2013)
      We present in this paper a few important direction on research using quantile regression. We start from some motivation for this method of regression. Secondly we present some main areas of application this method. Finally ...
    • On Model Selection in Some Regularized Linear Regression Methods 

      Kubus, Mariusz (Wydawnictwo Uniwersytetu Łódzkiego, 2013)
      A dynamic development of various regularization formulas in linear models has been observed recently. Penalizing the values of coefficients affects decreasing of the variance (shrinking coefficients to zero) and feature ...
    • Modification of Talavera Method of Variable Selection in Cluster Analysis 

      Korzeniewski, Jerzy (Wydawnictwo Uniwersytetu Łódzkiego, 2013)
      Talavera has proposed a method of variable selection in cluster analysis for data sets in which only variables measured on nominal scale are present. He examined the method on a couple of data sets basing his assessment ...
    • On Parameter Estimation of Some Longitudinal Model 

      Żądło, Tomasz (Wydawnictwo Uniwersytetu Łódzkiego, 2013)
      The problem of modeling longitudinal profiles is considered assuming that the population and elements’ affiliation to subpopulations may change in time. Some longitudinal model which is a special case of the general ...
    • The Role and Importance of an Actuary in the Insurance 

      Zapart, Tomasz (Wydawnictwo Uniwersytetu Łódzkiego, 2013)
      Actuary on the basis of the tasks arising from the audit process of an insurance undertaking is obliged to submit their opinion on all activities of that establishment which could have an impact on the financial position ...
    • A Content Analysis of the Representation of the European Uprising in Turkish News Media 

      Yay, Meral; Özdamar, Elif Özge; Arsan, Esra (Wydawnictwo Uniwersytetu Łódzkiego, 2013)
      The study covers content analysis of the european uprising news represented in Turkish Media . 12 mainstream Turkish newspapers has been analysed between the dates of 1th – 30th July 2011. Correspodence analysis and ...