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Increasing the efficiency of advertising on Facebook by using decision trees
Randus, Jan ; Vraná, Lenka (advisor) ; Jašek, Pavel (referee)
This bachelor thesis aims to increase the efficiency of Facebook marketing campaigns, having used advanced statistical methods. For this purpose, I gathered data from Facebook marketing campaign of a fashion online store. In the theoretical part, the thesis addresses methods which were used for data analysis (decision trees) and also covers sampling methods which were used for model adjustments. In addition, the thesis describes the field of online performance marketing. The practical part is devoted to the application of decision trees and the creation of decision model on the data gathered in the beginning. Finally, the thesis answers the question how to advertise on Facebook as efficiently as possible, based on the output from my decision model.
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Selected methods of substantive testing and application of statistical tools in audit
Rajdl, Jan ; Molín, Jan (advisor) ; Králíček, Vladimír (referee)
Audit is an interdisciplinary activity which requires, nowadays more than ever in the past, knowledge and skills in the field of accounting and related financial knowledge, as well as from other non-financial sectors (such as the statistics or the information technology). The use of statistics in the audit may not be entirely obvious at first sight and thus the main aim of this thesis is to point out possible ways to apply statistical tools in substantive testing (which represents an important stage of the audit work). The most important use of statistics in the audit can be found in sampling methods. The range of a tested population may be too wide for testing the whole population that leads to the fact that it is necessary to select an audit sample appropriately. The thesis outlines what kind of method and technique of selection to choose and how to generalize the results obtained during the sample testing to the entire population. Besides the main aim in the form of the application of statistical tools in the audit, the thesis also focuses on a brief description of the audit history, polemic of current understanding of the term audit, professional organizations and regulations of the audit in the Czech Republic and description of individual stages of audit work (especially on a detailed analysis of a substantive testing).
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Spatial distribution of water bugs (Heteroptera: Nepomorpha) in fishponds: estimation and comparison based on results reached by classic method (netting) and method of light traps.
ČELOUDOVÁ, Monika
The aim of this methodically oriented thesis was to find spatial distribution of water bugs in fishpond by parallelly used two different sampling methods - classic method (netting) and light traps as well as to find, if sampling method can influence a result of ecological study by substantial way. Study was realized in the one locality - fishpond Polepšil (region: Vysočina: Moravskobudějovicko) in years 2007 and 2008. Spaces {--} transects for sampling were difined. Efficiency of water bug sampling by nett is conspicuously less than sampling by light traps. More species and individuals (in total sum of samples and in samples from individual transects too) were sampled by light traps under comparable conditions. Chemical yelow-green light of light traps was more attractive for water bugs than the pink one. Spatial preferences of some corixid species and their developmental stages were noted by application of light trap method of sampling. Light trap method of samplings brings more complete and valuable data for ecological studies of water bug communities.
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Entry to metodology of research of diversity and function of ecotone associations on model forest edges
Halas, Petr
The aim of this article is to summarize some of the new information about function and biodiversity of ecotonal societes, especially societes of forest edges. Use of a few methods for analysing gradients of ecological factors and plant diversity changes is showed on examples of two transects from non-forest to forest vegetation in Stredomoravske Karpaty Hills. The method mentioned above seems to be a good device to understand the function of plant societes on ecological boundaries.
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Comparison of point abundance and sampling methods for 0+ fish
Janáč, M. ; Jurajda, Pavel
We compared structure of 0+fish assemblages estimates given by two different sample strategies: point abundance sampling (PAS) and continual sample method (CS). No statistital significant difference was found betweem both strategies in number of species, dominance and indices of diversity. CS is more time consuming sampling strategy.
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