Przeglądaj Acta Universitatis Lodziensis. Folia Oeconomica nr 285/2013 według daty wydania
Wyświetlanie pozycji 1-20 z 28
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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 ... -
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 ... -
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 ... -
Józef Kleczyński (1841–1900)
(Wydawnictwo Uniwersytetu Łódzkiego, 2013) -
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 ... -
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 ... -
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 ... -
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, ... -
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. -
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 ... -
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 ... -
Samuel Dickstein (1851–1939)
(Wydawnictwo Uniwersytetu Łódzkiego, 2013) -
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 ... -
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 ... -
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 ... -
Samuel Dickstein (1851–1939)
(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 ... -
The Significance of Prior Information in Bayesian Parametric Survival Models
(Wydawnictwo Uniwersytetu Łódzkiego, 2013)The Bayesian approach gives the possibility of using in the research additional information that is external to the sample. The primary objective of this paper is to analyse the impact of the prior information on the ...