National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Evaluation of the Success of Coefficients and Methods Used in Cluster Analysis
Hammerbauer, Jiří ; Löster, Tomáš (advisor) ; Makhalova, Elena (referee)
The diploma thesis explores with the evaluation of the success of selected indices for determining the number of clusters used in cluster analysis. The aim of this thesis is on the basis of various combinations of clustering methods and distances verify whether, alternatively using which clustering methods and distances is it possible to rely on the results of indices for determining the number of clusters. The results of success rate presented in the third chapter suggest that not all of indices for determining the number of clusters can be used universally. The most successful index is Dunn index, which was able to determine the correct number of clusters in 37 % of cases, respectively Davies-Bouldin index with the share of 70 % when including deviation of one cluster. The success rate is affected by both used method and selected distance.
Projection of Population of the Czech Republic with Different Variants of Net Migration
Hammerbauer, Jiří ; Fiala, Tomáš (advisor) ; Kačerová, Eva (referee)
The theme of bachelor thesis is based on the projection of population of the Czech Republic with different variants of net migration. The goal is to show whether and how migration is able to prevent population decline and possibly affect the aging of population. Besides the projection and description of its calculation, the thesis deals with the current development of international migration in the Czech Republic since 1993 and its institutional framework. Emphasis is placed on immigration to the Czech Republic, the structure of immigrants by sex, age and citizenship is analyzed.

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