Acta Universitatis Lodziensis. Folia Oeconomica: Ostatnio dodane
Wyświetlanie pozycji 2421-2440 z 4520
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The Application of the Tools of Spatial Statistics to Evaluation Regional Differentiation of Polish Agriculture
(Wydawnictwo Uniwersytetu Łódzkiego, 2013)The article presents the application of the spatial autocorrelation analysis in evaluation of regional differentiation of agriculture in Poland. The study based on the selected data for the sixteen provinces from the ... -
Rajmund Buławski – The Founder of the Śląsko-Dąbrowski Department of the Polish Statistical Association
(Wydawnictwo Uniwersytetu Łódzkiego, 2013) -
Introduction
(Wydawnictwo Uniwersytetu Łódzkiego, 2013) -
Some Remarks on the Data Imputation Using “missForest” Method
(Wydawnictwo Uniwersytetu Łódzkiego, 2013)Missing data are quite common in practical applications of statistical methods and imputation is a general statistical method for the analysis of incomplete data sets. Stekhoven and Bühlmann (2012) proposed an iterative ... -
The Role and Importance of an Actuary in the Insurance
(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
(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 ... -
Statistical Time Series Analysis of Macro Indicators of Educational, Professional and Family Careers of Women in Poland
(Wydawnictwo Uniwersytetu Łódzkiego, 2013)Educational, professional and family careers can promote each other, but more often they compete with each other, especially in a case of women. These careers change over time. This article aims to analyze changes over ... -
Introduction
(Wydawnictwo Uniwersytetu Łódzkiego, 2013) -
Wprowadzenie
(Wydawnictwo Uniwersytetu Łódzkiego, 2013) -
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 ... -
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 ... -
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 ... -
Testing Differences between Populations with Eigenvectors
(Wydawnictwo Uniwersytetu Łódzkiego, 2013)Testing differences between multivariate populations is one of a crucial problems in statistical investigations. The most known – MANOVA tests being parametric ones need to fulfill the assumptions about the conformity ... -
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 ... -
Some Remarks on the Symmetry Kernel Test
(Wydawnictwo Uniwersytetu Łódzkiego, 2013)The paper presents chosen statistical tests used to verify the hypothesis of the symmetry of random variable’s distribution. Detailed analysis of the symmetry kernel test is made. The properties of the regarded symmetry ... -
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 ... -
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 ... -
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, ... -
Samuel Dickstein (1851–1939)
(Wydawnictwo Uniwersytetu Łódzkiego, 2013)