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National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
Comparison of logistic regression and decision trees
 Raadová, Zuzana ; Voříšek, Jan (advisor) ; Komárek, Arnošt (referee)
In this thesis we describe a classification of the binary data. For discussing this problem we use two well-known methods - logistic regression and decision trees. These methods deal with the problem in different way, so our aim is to compare a successfulness of their predictions. At first a model of logistic regression is introduced and we show how to estimate its parameters using a method of maximum likelihood. Then we describe decision trees as one of the most popular classification tools. There are discussed older classic algorithms CART and C4.5 and also two new algorithms GUEST and CRUISE. The predictions of both of the methods are shown on a real data example.
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Comparison of logistic regression and decision trees
 Raadová, Zuzana ; Voříšek, Jan (advisor) ; Komárek, Arnošt (referee)
In this thesis we describe a classification of the binary data. For discussing this problem we use two well-known methods - logistic regression and decision trees. These methods deal with the problem in different way, so our aim is to compare a successfulness of their predictions. At first a model of logistic regression is introduced and we show how to estimate its parameters using a method of maximum likelihood. Then we describe decision trees as one of the most popular classification tools. There are discussed older classic algorithms CART and C4.5 and also two new algorithms GUEST and CRUISE. The predictions of both of the methods are shown on a real data example.
Detailed record
Synanthropic flora of villages on altitudinal gradient in southern part of the Czech Republic
 JENČOVÁ, Dana
The study is a floristic survey of 131 villages in southern part of South Bohemia. In total 27.773 floristic records were collected with occurence of 585 taxa of wild vascular plants recorded, 548 taxa were further used in statistical analyses. Environmental factors with potencial effect on village flora composition and diversity were recorded along or extracted from various sources. Relations of diversity (number of species) and environmental factors were studied. Species composition was compared with these variables using multivariate statistical methods.
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