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Míry podobnosti pro nominální data v hierarchickém shlukování
Šulc, Zdeněk ; Řezanková, Hana (advisor) ; Šimůnek, Milan (referee) ; Žambochová, Marta (referee)
This dissertation thesis deals with similarity measures for nominal data in hierarchical clustering, which can cope with variables with more than two categories, and which aspire to replace the simple matching approach standardly used in this area. These similarity measures take into account additional characteristics of a dataset, such as frequency distribution of categories or number of categories of a given variable. The thesis recognizes three main aims. The first one is an examination and clustering performance evaluation of selected similarity measures for nominal data in hierarchical clustering of objects and variables. To achieve this goal, four experiments dealing both with the object and variable clustering were performed. They examine the clustering quality of the examined similarity measures for nominal data in comparison with the commonly used similarity measures using a binary transformation, and moreover, with several alternative methods for nominal data clustering. The comparison and evaluation are performed on real and generated datasets. Outputs of these experiments lead to knowledge, which similarity measures can generally be used, which ones perform well in a particular situation, and which ones are not recommended to use for an object or variable clustering. The second aim is to propose a theory-based similarity measure, evaluate its properties, and compare it with the other examined similarity measures. Based on this aim, two novel similarity measures, Variable Entropy and Variable Mutability are proposed; especially, the former one performs very well in datasets with a lower number of variables. The third aim of this thesis is to provide a convenient software implementation based on the examined similarity measures for nominal data, which covers the whole clustering process from a computation of a proximity matrix to evaluation of resulting clusters. This goal was also achieved by creating the nomclust package for the software R, which covers this issue, and which is freely available.
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Speculation on oil markets and its impact on commodity's price
Melcher, Ota ; Taušer, Josef (advisor) ; Baláž, Peter (referee) ; Müller, Štěpán (referee)
This study aims to analyse the precrisis period on the oil markets with a primary objective of assessing the role of speculation in the commodity's price development and its volatility. First it depicts the rapidly increasing speculative activity on the futures market together with the parallel oil price surge. The speculation is initially proxied by non-commercial traders' positions and subsequently quantified by Working's T-index. The paper then uses speculative traders' positions and both spot and futures prices to test for Granger causality within the framework of VAR models. For the sake of consistency it also evaluates causal links between speculation and inventories level. Further the study investigates the speculation impact on volatility of oil prices by employing various approaches in volatility quantification including GARCH models. Contrary to expectations we find that the speculatio's impact on both prices and their volatility is rather insignificant. In the last chapter we therefore seek for an explanation of the oil price developments by examining the market fundamentals. The interaction of supply and demand finally gives substantial evidence for understanding the price developments in the precrisis period.
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Differences between men and women in the Czech labour market
Stroukal, Dominik ; Kadeřábková, Božena (advisor) ; Pavelka, Tomáš (referee) ; Němec, Otakar (referee)
This thesis consists of five articles that apply current world research on labor economics at the Czech Republic and confirms the significant differences between men and women in this market. It shows that gender has a significant influence on the preference on the labor market and, consequently, on employment and health. First, the thesis shows that preferences are relevant determinant of career and then we study the difference in preference of salary for men and women. Subsequently it shows that gender plays a significant role in explaining the relationship between homeownership, and unemployment, as well as unemployment and health. The first chapter was able to demonstrate that the preference for a career has a positive influence on the choice of career. The influence of higher education on prioritizing career proved to be positive and significant. Probability of a career choice is reduced by the presence of children, however, is not dependent on their number, which is contrary to the theory of preferences. The second chapter shows that Czech women prefer more non-monetary rewards than men. It has also been shown that people with university education are same in the preferences of non-monetary rewards regardless of the gender of the respondents, however, compared to the world's research, the Czech higher education increases this preference. It turned out that women prefer risk less than men. The third chapter demonstrates that although the housing market undermines labor mobility and employment in the Czech Republic at the regional level, therefore, that in regions with a higher rate of home ownership is higher unemployment, at the individual level, the owners of housing are unemployed are less likely. The estimates are significantly different for men and women. Men living in owner-occupied housing have a higher likelihood of employment than women. At regional level, however, this thesis shows that the high rate of home ownership increases unemployment for both men and women, in the long run only to women. The fourth chapter showed that men transition to homeownership reduces the likelihood of unemployment next year. For women, this relationship has proved to be insignificant. In addition, as insignificant showed the opposite relationship, the transition from unemployment to the newly acquired home ownership. The last chapter shows that the change in the working status to unemployment will increase in the future probability of worse health. Influence in less than two years, however, proved to be significant. An important conclusion is that men have a significantly stronger relationship between health and unemployment than women.
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Building and use of smaller computer networks
Kyzivát, Marek ; Pinkas, Otakar (advisor) ; Šmejkal, Ivo (referee)
The thesis describes the initial state of the computer network Basic Schools and Kindergartens Ohradní (ZŠMŠ Ohradní) in Prague 4 and then its reconstruction, which I largely contributed. ZŠMŠ Ohradní consists of four pavilions and from one building on the other side of the street. The aim of this study is to assess the initial state of the network and point out the shortcomings that we discovered. We found deficiencies in the operation stress tests, measurements and data cabling overall analysis. Original networks connectivity was 100Mb/s. Together with a colleague, we are network administrators. Furthermore, I am going to introduce a new form of network, which has identified deficiencies improved, by using on newer technologies. I will describe its structure, address allocation, active and passive components, and operated services. New network is capable of 1Gb/s, and its spine is going to be 10Gb/s soon. Benefits of this reconstruction is faster, more stable and more modern network that will facilitate the work of employees of ZŠMŠ Ohradní. To these improvements, I have mainly contributed by measurements. I participated in the design and implementation of new form of data network. I collaborated with fellow Poc to the configuration of active elements and network services in reconstructed network.
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Analysis of competition in the services market
Shashkova, Tatiana ; Soukupová, Jana (advisor) ; Adámek, Petr (referee)
The thesis deals with the analysis of market competition hairdressing services, concretely with analysis of three salons which provide hairdressing services in the Centre of Prague. Preliminary I present and define key terms that play basic role in the analysis of competition in the chosen field (competition, the specifics of hairdressing market, the specifics of consumer behavior). To make my own research I elected standards that influence customers when they choose a hairdressing salon, and I created questionnaire. During valuation I commented point gains. Total score were used to to evaluate the competitive position of hairdressing salons in the market.
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Analysis of Financing Research and Development in the Czech Republic
Vacek, Jan ; Hnilica, Jiří (advisor) ; Sieber, Patrik (referee)
The topic of this bachelor Thesis is an Analysis of Financing Research and Development in the Czech Republic. Research and Development (R&D) plays an important role in improving the competitive ability of the Czech Republic, for it constitutes a source for increasing productivity, economic growth and employment. The results of R&D lead to creation of new products and services, which in return increases the quality of life of the Czech citizens. This bachelor thesis focuses on analysis of financing R&D in the Czech Republic. The objective is to find out who finances R&D in the Czech Republic, where do these funds go to, and what they are used on. This thesis also focuses on R&D employees and R&D departments in which they work. The bachelor thesis is concluded by comparison between the R&D data for Czech Republic and other countries form the Europian Union.
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Members of individual types of business company
Štěrba, Petr ; Horáček, Tomáš (advisor) ; Štenglová, Ivanka (referee)
Resumé RIGHTS AND DUTIES OF MEMBERS OF INDIVIDUAL FORMS OF BUSINESS COMPANIES This dissertation concentrates on the differences between the status of the members of the particular forms of business companies. The first chapter introduces into the basic institution as business company, member of a business company and share of business company in relation of rights an duties of members. In second chapter I aim to selected rights and duties generally. The overview is focused on the selected rights and duties of the members, which are: obligation to pay up the contribution, right to participate of the business company, right for the profit of the business company, obligation to bear the loss of the company, the duty to be liable for the obligations of the company. I also pay attention to the selected rights and duties of members of business companies which is being married. It caused specific relations, which I focused on. I founded several related interpreting problems in particular regulations there. The rights and duties of the members of business companies depend especially on whether character of the business company is personal company or capital company. The third part gives a overview of the particular forms of the business companies regarding to selected rights and obligations. The particular forms...
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Analysis, design and implementation of CRM solutions for selected company
Ilavský, Dávid ; Pour, Jan (advisor) ; Šedivá, Zuzana (referee)
Bachelor thesis focuses on the area of information systems, which are used to support customer relationship management in companies. The main objective of this work is to provide a sample of solution for CRM system implementation for real customer from the banking sector. The first part defines basic functional areas of any CRM application. Each of these areas is described in more detail in terms of its primary use and tasks that within the CRM as a whole performs. Further is described the analytical area of CRM application (or Customer Intelligence), which is gradually playing a key role in the entire CRM system in past few years. It includes its potential uses in various fields. At the end of the theoretical part, the author compares the fundamental differences between cloud model of deployment and traditional on-premise solution. The practical part focuses on the main objective of the thesis and description of the supplied solution in the form of a module, which extends the existing CRM application with the option for business partners registration of Hypoteční banka, a. s. and ČSOB Pojišťovna, centralized in one system. The requirement is build in Microsoft Dynamics CRM 2011 and as the source system it is used CRM system of Hypoteční banka, a. s..
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CRM System Optimization
Fučík, Ivan ; Mildeová, Stanislava (advisor)
This thesis is focused on CRM solutions in small and medium-sized organizations with respect to the quality of their customer relationship. The main goal of this work is to design an optimal CRM solution in the environment of real organization. To achieve this goal it is necessary to understand the theoretical basis of several topics, such as organizations and their relationship with customers, CRM systems, their features and trends. On the basis of these theoretical topics it is possible to analyze current CRM solution in the organization. From the data obtained by the methods of observation and controlled interview it was possible to prepare a design for optimal CRM solution. This optimal solution comes also from user and organization requirements. The optimal CRM solution saves time and costs associated with current CRM solution and replaces existing and ineffective CRM tools.
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