Przeglądaj Acta Universitatis Lodziensis. Folia Oeconomica nr 285/2013 według tytułu
Wyświetlanie pozycji 1-20 z 28
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A Content Analysis of the Representation of the European Uprising in Turkish News Media
(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 ... -
Bayesian Statistical Tests for Proportion for Independent and Dependent Sampling
(Wydawnictwo Uniwersytetu Łódzkiego, 2013)As a result of the use of the Bayesian statistical tests, the decision of the acceptance of the hypothesis for which the posterior risk is lower, is made. The risk depends on the prior parameter’s distribution, the loss ... -
Classification of Large Data Sets. Comparison of Performance of Chosen Algorithms
(Wydawnictwo Uniwersytetu Łódzkiego, 2013)Researchers analyzing large (> 100,000 objects) data sets with the methods of cluster analysis often face the problem of computational complexity of algorithms, that sometimes makes it impossible to analyze in an acceptable ... -
Clustering of Symbolic Data with Application of Ensemble Approach
(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, ... -
Comparison of Accuracy of Spectral Clustering and Cluster Ensembles based on Co-Occurrence Matrix
(Wydawnictwo Uniwersytetu Łódzkiego, 2013)High accuracy of the results is very important task in any grouping problem (clustering). It determines effectiveness of the decisions based on them. Therefore in the literature there are proposed methods and solutions ... -
Construction of E–Optimal Spring Balance Weighing Designs for Even Number of Objects
(Wydawnictwo Uniwersytetu Łódzkiego, 2013)The problem of the construction of spring balance weighing designs satisfying the criterion of E-optimality is discussed. The incidence matrices of partially incomplete block designs are used to construction of the regular ... -
GARCH Process Application in Risk Valuation for WIG20 Index
Małecka, Marta
(Wydawnictwo Uniwersytetu Łódzkiego, 2013)
The recent economic crisis of 2008/2009 boosted a discussion about effectiveness of popular methods of controlling risk in financial markets, with value-at-risk approach being a topical issue. The paper contrasted a GARCH ... -
Geometrical Presentation of Preferences by Using Profit Analysis and R Program
(Wydawnictwo Uniwersytetu Łódzkiego, 2013)PROFIT is a kind of external vector analysis of preference mapping. It is a combination of multidimensional scaling and multiple regression analysis. PROFIT takes as input both a configuration of stimulus points and a ... -
Introduction
(Wydawnictwo Uniwersytetu Łódzkiego, 2013) -
Józef Kleczyński (1841–1900)
(Wydawnictwo Uniwersytetu Łódzkiego, 2013) -
Men’s and Women’s Economic Activity in Poland
(Wydawnictwo Uniwersytetu Łódzkiego, 2013)The aim of the article is to examine the impact of a job seeker’s gender on their economic activity and employment odds in Poland in 2010. The research tool was a logit model. The starting point for the analysis was the ... -
Model Selection Methods in Log-Linear Analysis
(Wydawnictwo Uniwersytetu Łódzkiego, 2013)The main objective of the study is to examine model selection methods in loglinear analysis. Log-linear analysis is a tool for independence analysis of qualitative data. Cell counts are Poisson distributed and all variables ... -
Modification of Talavera Method of Variable Selection in Cluster Analysis
(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 Model Selection in Some Regularized Linear Regression Methods
(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 ... -
On Parameter Estimation of Some Longitudinal Model
(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 ... -
Optimality of Spring Balance Weighing Designs
(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
(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 ... -
Samuel Dickstein (1851–1939)
(Wydawnictwo Uniwersytetu Łódzkiego, 2013) -
Samuel Dickstein (1851–1939)
(Wydawnictwo Uniwersytetu Łódzkiego, 2013) -
Some Construction of Factorial Designs
(Wydawnictwo Uniwersytetu Łódzkiego, 2013)Design of experiments methods are an important tool to improve production processes using statistical methods. Designing experiments allows to set factors of the production process as well as describe the influence of ...