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Location-aware data transfers scheduling for distributed virtual walkthrough applications.
Přibyl, Jaroslav ; Sochor, Jiří (referee) ; Sojka, Eduard (referee) ; Zemčík, Pavel (advisor)
Důležitou součástí aplikací procházení distribuovanou virtuální scénou je proces plánování přenosu dat. Jeho hlavním úkolem je zajištění efektivního přenosu dat a maximální kvality renderovaného obrazu. Největší vliv na kvalitu renderované scény mají omezení síťového připojení. Tyto omezení lze redukovat pomocí multi-resolution reprezentace dat scény, určováním priorit stahování jednotlivých částí scény, a přednačítáním dat. Pokročilé metody pro určování priorit a přednačítání částí scény jsou založeny na predikci pohybu uživatele vycházející z matematického popisu jeho pohybu. Tyto metody jsou schopny predikovat následující pozici uživatele jen v krátké vzdálenosti od jeho aktuální polohy. V případě náhlých, ale pravidelných změn směru pohybu uživatele jsou tyto metody nedostatečné co do přesnosti i délky predikce. V této práci je navrhnut komplexní přístup k řešení plánování přenosu dat splňující i tyto požadavky. Navrhované řešení využívá predikci pohybu uživatele založenou na znalostech k určení priority stahování dat i předstahování částí scény. Provedené experimenty nad testovacími daty ukazují, že navržené schéma plánování přenosu dat umožňuje dosažení vyšší efektivity přenosu dat a vyšší kvality renderovaného obrazu během průchodu testovací scénou.
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Statistical analysis of selected wage level indicators in regions of the Czech Republic
Čálková, Tereza ; Kába, Bohumil (advisor) ; Jindřich, Jindřich (referee)
The thesis describes the development of selected wage indicators in regions of the Czech Republic in the period 2002-2014 and predicts the future development of these indicators for the next three years. Subsequently thesis classifies individual regions into clusters based on similarity in terms of wage indicators and selected labour indicators and then compares these clusters within two years - 2002 and 2014. Foundations are taken from the website of the Ministry of Labour and Social Affairs and Public database of Czech Statistical Office. The thesis is divided into theoretical and practical part and contains eight chapters. The theoretical part explains terms of remuneration of workers, describes the selected indicators, regions and used methods. In the practical part is applied time series analysis, principal component analysis and cluster analysis. The results of the analyses are summarized in the conclusion of the thesis.
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Comparison of Antivirus Software
Papica, Jiří ; Havránek, Martin (advisor) ; Benda, Petr (referee)
This bachelor thesis focuses on comparison of selected anti-virus programs and subsequent choosing of the most suitable one for given computer.
The thesis consists of two major parts. The first part focuses on anti-viruses and malware, which are divided into various types. In addition to the anti-virus section there are topics which are covering things like anti-virus tools and mechanism, e.g. firewalls and heuristics. At the end of the theoretic part there are topics which are briefly touched upon, topics like hardware basics of every computer which are later on important for the actual testing parts.
The second major part of this thesis is about choosing the right attributes for ani-viruses, about choosing the right criteria for their future evaluation and finally the measurement of said criteria. The criteria that were chosen are thus: price, time it takes for video to be rendered in Sony Vegas Pro, time it takes for GPU benchmark to finish, time it takes for CPU benchmark to finish and finally the last criteria that was picked is the effectiveness against real-life threats. Anti-virus programs that were being evaluated are Eset Smart Security 9, Norton Security Deluxe, Avast! Internet Security and lastly Kaspersky Anti-Virus. The recorded values were converted into a point-based system, which allowed for clear and evident illustrations via graphs and charts. From the final graphs and charts I was able to recommend the most suitable anti-virus for given computer.
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Authentic counterfeit in viral marketing
Jelínková, Petra ; Štůsek, Jaromír (advisor) ; Marie, Marie (referee)
This master thesis deals with authentic fake, a phenomenon present in viral marketing. After a brief introduction into the issue and clarification of terms, the study aims to find out whether a seemingly authentic video recording of a catchy incident helps a marketing campaign to succeed, that is to say to achieve high sharing figures amongst internet users. In a theoretical part, the thesis elaborates information from technical books, publications and internet sources dealing with authenticity as such, viral marketing and a match they create, an authentic fake in viral marketing. Theoretical findings from these sources are applied in an empirical analysis. Empirical part of the thesis focuses on analyzing 100 most successful viral campaigns of the world. For this purpose, we consider 4 regression models (linear and logarithmic) with 6 different factors including an authenticity factor. Results of the regression analysis allow us to estimate the influence of these factors on video sharing and to answer questions like why do authentic fake campaigns exist and what are the pros and cons of such marketing strategies. At the end, the thesis contemplates on the future of this phenomenon.
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Statistical analysis of unemployment in Kutná Hora District and its expected future development
Košátková, Veronika ; Prášilová, Marie (advisor) ; Macháček, Otakar (referee)
This thesis deals with statistical analysis of unemployment in the region of Kutna Hora. Work will focus on job opportunities and on the structure of the candidates on the demand side in terms of gender, age and level of educational attainment. It also includes candidates from risk groups, graduates and disadvantaged. Statistical methods will evaluate seasonality in unemployment and quantified trends selected indicators. The result will be a formulation of recommendations for reducing unemployment in the region. The underlying data will be processed using the methods of analysis of time series based on the collection of data available in the databases of the Ministry of Labour and Social Affairs, the Czech Statistical Office and the Labour Office in Kutna Hora.
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Possible solutions to the restoration of overmature forest stands in the Lány game enclosuregame-park
Ambrož, Robin ; Vacek, Stanislav (advisor) ; Igor, Igor (referee)
Possible solutions to the restoration of overmature forest stands in the Lány game enclosure -- this is a problem that generations of foresters in the Křivoklátsko region have been faced with. The restoration has often been postponed; as a result, there has been a remarkable increase in the number of such stands in the game enclosure. Currently, almost a third of the game enclosure is covered by stands, predominantly beech, older than 160 years, and the suggestions on how to restore these stands are by no means unified, not only within the framework of the relevant authorities, but also among the management of the Lány forestry administration. In the past, the disintegration of stands in the highest age class was dealt with by a massive planting of large-sized plants in the whole area of the game enclosure, which has brought and will continue to bring about a remarkable increase in the forest protection costs. The aim of this PhD thesis is to answer the questions concerning the restoration of the local beech stands and to propose a solution that would be efficient in the long term. The basic questions have been phrased as follows: In what condition are the extensive large-sized plant plantings? What is the number of overmature forest stands in the Lány game enclosure and what will their future development be? Are these stands still capable of producing a sufficient number of beech seeds to ensure successful natural regeneration? In what way should we restore these overmature forest stands? How should we protect them from the game damage? It was necessary to find some of the answers within the framework of intermediate scientific tasks; however, the finding of a conceptual solution to the restoration of the game enclosure remained the main goal of this work. To fulfil the goals of this thesis, it was necessary to perform the inventory of large-sized plant plots; it was found out that the total number of individuals planted in the Lány game enclosure until the end of 2011 was 28,994 at 840 plots. The plantings established in 2011 were surveyed as to their vitality and height increment between the years 2011 and 2014. In 2015, a sample was selected on which the condition of the root system was analysed according to the type of a container used for the raising of large-sized plants. It is evident from the results that despite considerable investment in fencing, the large-sized plant plantings are very often damaged by game and have to be repeatedly reinforced. The root system analysis revealed that a significant number of individuals show serious root system deformations. Consequently, the optimization of large-sized plant planting was proposed. The condition of the beech stands at PRP was ascertained with the aid of the FieldMap technology; the stand development prediction was carried out by the growth simulator SIBYLA. The verification of the fertility of the overmature beech stands took place at smaller plots demarcated within PRP. The results show that the occurrence of game eliminates natural regeneration in these stands; thus, it is necessary to find a way which will not be only efficient, but also economical. The fertility verification proved that despite their advanced age, the beech stands preserve their ability to produce seed material, which could be used for regeneration under a shelterwood. Finally, a model regeneration block presenting two possible reproduction methods (with maximum utilization of natural regeneration and accelerated one) was designed on the basis of both the differentiation of the game enclosure and the localization of stands with the highest degree of regeneration urgency.
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Influence of the brown coal extraction on the landscape pattern changes in the Most study area
Kochan, Ladislav ; Kottová, Blanka (advisor) ; Klára, Klára (referee)
This task presents the historic character of the selected area Most area before the start of lignite mining and after mining. Trying to objectively evaluate what the impact of mining on the landscape and return to the situation in which the country found itself. The work includes photographs and a description. With the help of historical documents and photographs will be judged influence culturally - green and the result will be evaluated as a change in the influence of negative, zero, when the return of the original landscape features observed with respect to functionality and aesthetic requirements, respectively. positive when the country has exceeded the original landscape functionality and achieve high ecological value. Then comes the final assessment of the current status and sustainability of the changes described in the future.
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Trend assessment of foreign trade with selected commodities after Czech Republic entry to EU
Musilová, Jana ; Šánová, Petra (advisor) ; Hrubcová, Barbora (referee)
This thesis deals with the evaluation and development trend of the foreign trade of timber before and after the Czech Republic joined the European Union, merging the theoretical foundations to ensure understanding of the problems and analyzing data for exports and imports of raw wood for fifteen years. Using annual reports from the Ministry of Agriculture, accurate analysis has been achieved in foreign trade and evaluation of the causes of growth and decline caused by external or internal action. In the end a statistical prediction of the future trend of foreign trade was established.
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OS Chrome and the Chromium project
Pelcová, Lenka ; Vaněk, Jiří (advisor) ; Masner, Jan (referee)
The topic of this bachelor thesis is Google Chrome web-based operating system and open source Chromium project. In theoretical part of the thesis, general problematics of operating systems is shortly described, followed by the development of OS Chrome, description of the system architecture, and introduction of special hardware for usage of Chrome OS
The practical part is focused on the market analysis both in the Czech Republic and globally, including future prognoses, and comparison to Windows operating systems. Through a survey, knowledge of OS Chrome among people and most frequent usage in computers and laptops is found out. A comparison between OS Chrome and Windows 8.1 is made in these tasks.
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Comparison of modern television broadcast standards
Musil, Karel ; Vaněk, Jiří (advisor) ; Pavlík, Jan (referee)
This bachelor thesis is thematically focused on modern TV broadcast standards.
The emphasis is on the future development and possibilities. The first part provides
a comprehensive overview of the main topic addressed in terms of significant changes in
the second generation of digital technology. Including methods currently tested. The
greatest emphasis is placed on terrestrial broadcast due to the significance of this method in
the Czech Republic and currently ongoing transition to the second generation
of broadcasting. The second part focuses on the analysis of the actual developments, and
the not too distant future of the television broadcasting. The actual situation of the auction
of frequencies is introduced together with the estimation of the allocation of the spectrum.
Analyses the potential costs for the viewer and the signal provider, and compare the status
of broadcasting in Europe with the situation in the Czech Republic. Further, are defined
and analysed the possibilities of the next development of the terrestrial broadcasting.
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