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Performance comparison of methods for design of experiments for analysis of tasks involving random variables
Martinásková, Magdalena ; Novák, Drahomír (referee) ; Vořechovský, Miroslav (advisor)
The thesis presents methods and criteria for creation and optimization of design of computer experiments. Using the core of a program Freet the optimized designs were created by combination of these methods and criteria. Then, the suitability of the designs for statistical analysis of the tasks vith input random variables was assessed by comparison of the obtained results of six selected functions and the exact (analytically obtained) solutions. Basic theory, definitions of the evaluated functions, description of the setting of optimization and the discussion of the obtained results, including recommendations related to identified weaknesses of certain designs, are presented. The thesis also contains a description of an application that was created to display the results.
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Multi-filament yarns testing for textile-reinforced concrete
Kaděrová, Jana ; Seitl,, Stanislav (referee) ; Vořechovský, Miroslav (advisor)
The scope of the presented master thesis was the experimental study of multi-filament yarns made of AR-glass and used for textile-reinforced concrete. The behavior under the tensile loading was investigated by laboratory tests. A high number of yarn specimens (over 300) of six different lengths (from 1 cm to 74 cm) was tested to obtain statistically significant data which were subsequently corrected and statistically processed. The numerical model of the multi-filament bundle was studied and applied for prediction of the yarn performance and for later results interpretation. The model of n parallel filaments describes the behavior of a bundle with varying parameters representing different sources of disorder of the response and provides the qualitative information about the influence of their randomization on the overall bundle response. The aim of the carried experiment was to validate the model presumptions and to identify the model parameters to fit the real load-displacement curves. Unfortunately, due to unsuccessful correction of measured displacements devalued by additional non-linear contribution of the unstiff experiment device the load-displacement diagrams were not applicable to model parameters identification. The statistical evaluation was carried only for the maximal load values and the effect of the specimen size (length) on its strength was demonstrated. The size effect curve did not exclude the existence of spatial correlation of material mechanical properties modifying the classical statistical Weibull theory.
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Information System Assessment and Proposal for ICT Modification
Ryšánek, Vladimír ; Hampl, Ondřej (referee) ; Koch, Miloš (advisor)
This thesis focuses on the analysis of the current state of an information system in order to detect it´s deficiencies and to propose a motion for their elimination. Via application of selected methods, it reveals lack in the system security policy, on which this thesis further focuses. Specifies how to implement asset assessment as a part of the risk management in the company and also contains its own security policy solution using Safetica software, which helps reducing the likelihood of the company security incidents.
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The Use of Means of Artificial Intelligence for the Decision Making Support on Stock Market
Hrach, Vlastimil ; Budík, Jan (referee) ; Dostál, Petr (advisor)
The diploma thesis deals with artificial intelligence utilization for predictions on stock markets.The prediction is unconventionally based on Bayes' probabilistic model theorem and on its based Naive Bayes classifier. I the practical part algorithm is designed. The algorithm uses recognized relations between identifiers of technical analyze. Concretely exponential running averages at 20 and 50 days had been used. The program output is a graphic forecast of future stock development which is designed on ground of relations classification between the identifiers
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Isolated word recognition
Vodička, Radek ; Křupka, Aleš (referee) ; Sysel, Petr (advisor)
Main purpose of the thesis is to study the processes and methods of isolated words recognition. In the theoretical part a basic principals are explained. The practical part is about the program creating using these principles in practice. For isolated words recognition Hidden Markov Models (HMM) are used, for obtaining decision symptoms cepstral analysis is chosen.
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Risk assessment design margin of process and power equipment
Horsák, Jan ; Pačíska, Tomáš (referee) ; Jegla, Zdeněk (advisor)
This work is devoted to description of methodology of determining process and power equipment design margins, which is based on assessment of a relative process importance of the equipment in question. The methodology is theoretically analysed, brought into context of common design practice and demonstrated on actual cases. Substantial part of this work analyses heat transfer in general as a base of heat exchanger design process.
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Risk Management inside Construction Company
Svobodová, Lenka ; Vašíček, Roman (referee) ; Nováková, Jana (advisor)
The main aim of this bachelor’s paper is risk management in a building company. The theoretical part deals with various types of risks, including identification, analysis and planning. The practical part is focused on the risk situations in a particular building company. Subsequently, the building project shows the actual procedures and solutions to risk management together with preventive measures to eliminate risks.
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A comparison of frequentist and Bayesian approaches to probability
Dupal, Pavel ; Karel, Tomáš (advisor) ; Bílková, Diana (referee)
The aim of this thesis is to provide a basic comparison between the classical (frequentist) and Bayesian schools of statistics on both the historical and the scientific level. The history of statistics is examined in short starting from the 17th century through the recent years. Key figures and discoveries are mentioned, as well as some of the occasions when the frequentist and Bayesian approaches clashed or influenced one another. Different interpretations of probability are listed and the Bayesian approach is introduced via Bayes' Theorem. The frequentist and Bayesian methods for point estimation, interval estimation and hypothesis testing are then described and compared. Every method is then further presented in an example and the results are evaluated using selected criteria.
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Řízení rizik vybraného podnikatelského subjektu
Holub, Tomáš
Holub, T. Risk management in the chosen business entity. Bachelor thesis. Brno: Mendel University, 2014. Bachelor thesis deals with the risk management in company Nest & Stavo, spol. s r. o. In this work, there are defined basic terms from the topic of risk manage-ment. There are described risks, which are threats for company and these risks are evaluated. There is also described current way of securing of the risks. This thesis includes recommendations of risk management for chosen company.
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