Acta Universitatis Lodziensis. Folia Oeconomica nr 225/2009: Ostatnio dodane

Wyświetlanie pozycji 21-30 z 30

    • Clustering Methods Applied to Reduce the Training Sample Size in Support Vector Machines 

      Trzęsiok, Michał (Wydawnictwo Uniwersytetu Łódzkiego, 2009)
      Support vector machines belong to the group of methods of supervised learning. They generate non-linear models with good generalization abilities. The core of SVMs algorithm is the quadratic program which is solved for ...

    • About Robust Estimators of Average Shape and Variance of Shape 

      Kosiorowski, Daniel (Wydawnictwo Uniwersytetu Łódzkiego, 2009)
      In this paper we investigate whether in the statistical inference for shapes of economic systems it is useful to modify least squares methods (commonly used Procrustes approach) by applying data depth concept. In the paper ...

    • The Method of Risk Measurement in Case of Stochastic Definition of Net Present Value 

      Białek, Jacek (Wydawnictwo Uniwersytetu Łódzkiego, 2009)
      The Net Present Value (NPV) rule is a base of modern finance theory. The classical definition of NPV is based on unrealistic assumptions: it treats the discount rate as a deterministic and constant function. The above fact ...

    • Economic and Sociological Community of Łódź until the Year 1945 

      Kuciński, Julian (Wydawnictwo Uniwersytetu Łódzkiego, 2009)
      At the turn of the 19th and the 20th century the process popularization of economy and sociology in Łódź was mainly carried out by the public Universities. The local press which published papers of eminent scientists aided ...

    • First Statisticians of Łódź 

      Domański, Czesław (Wydawnictwo Uniwersytetu Łódzkiego, 2009)
      In the years 1912-1914, the Łódź Exchange Committee made first attempts to establish Łódź municipal statistics. On September 19th 1917 the City Council decided to bring into being the Department of Statistics next to the ...

    • Optimum Chemical Balance Weighing Design with Correlated Errors Based on Bipartite and Ternary Designs 

      Ceranka, Bronisław; Graczyk, Małgorzata (Wydawnictwo Uniwersytetu Łódzkiego, 2009)
      The paper is studying the estimation problem of individual weights of objects using the chemical balance weighing design under the restriction on the number times in which each object is weighed. It is assumed that the ...

    • Introduction 

      Domański, Czesław; Witaszczyk, Anna (Wydawnictwo Uniwersytetu Łódzkiego, 2009)

    • Limit Property of a Compound of the Generalized Negative Binomial and Beta Distributions 

      Gerstenkorn, Tadeusz (Wydawnictwo Uniwersytetu Łódzkiego, 2009)
      In Central European Journal of Mathematics (CEJM) 2(4) 2004, 527-537 T. Gerstenkorn published a probability distribution as a result of compounding of the generalized negative binominal distribution with the generalized ...

    • Measures of Diversity and the Classification Error in the Multiple-model Approach 

      Gatnar, Eugeniusz (Wydawnictwo Uniwersytetu Łódzkiego, 2009)
      Multiple-model approach (model aggregation, model fusion) is most commonly used in classification and regression. In this approach K component (single) models C1(x), C1(x), … , CK(x) are combined into one global model ...

    • Attempt to Assess Multivariate Normality Tests 

      Domański, Czesław (Wydawnictwo Uniwersytetu Łódzkiego, 2009)
      The assumption of multivariate normality is a basis of the classical multivariate statistical methodology. Consequences of departures from these assumptions have not been investigated well so far. There are many methods ...