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Instrumentation and Evaluation for Dynamic Program Analysis
Marek, Lukáš ; Tůma, Petr (advisor) ; Hasselbring, Wilhelm (referee) ; Krall, Andreas (referee)
A dynamic program analysis provides essential information during later phases of an application development. It helps with debugging, profiling, performance optimizations or vulnerability detection. Despite that, support for creating custom dynamic analysis tools, especially in the domain of managed languages, is rather limited. In this thesis, we present two systems to help improve application observability on the Java platform. DiSL is a language accompanied with a framework allowing simple and flexible instrumentation for the dynamic program analysis. DiSL provides high level abstractions to enable quick prototyping even for programmers not possessing a knowledge of Java internals. A skilled analysis developer gains full control over the instrumentation process, thus does not have to worry about unwanted allocations or hidden execution overhead. ShadowVM is a platform that provides isolation between the observed application and the analysis environment. To reduce the amount of possible interactions between the analysis and the application, ShadowVM offloads analysis events out of the context of the application. Even though the isolation is the primary focus of the platform, ShadowVM introduces a number of techniques to stay performance comparable and provide a similar programming model as existing...
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Simulation of traffic infrastructure
Pak, Hak Chol ; Kofroň, Jan (advisor) ; Marek, Lukáš (referee)
The aim of the project is to simulate the movement of vehicles on the road. The project includes the graphical simulator and the graphical editor of the traffic road network. Editor traffic road network allows users to create and edit network. With the traffic road network will be able to simulate the movement of vehicles and obtain simulation results. The simulation is carried out with its own simulation model, which has two important models - control model of movement of vehicles and traffic lights.
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Convective environment indicies and their comparison
Marek, Lukáš ; Müller, Miloslav (advisor) ; Kašpar, Marek (referee)
In this work I created the overwiew of instability indices and other characteristics of convective environment which can be found in the literature. On the basis of variables, which the instability indices are calculated from, I suggested their categorization. It was created five groups of instability indices: (i) indices of isobaric levels differences, (ii) indices of rising air parcel, (iii) indices of potential temperatures, (iv) indices of the energy potential of convection and (v) indices of wind shear. In addition to these five categories it was created the sixth category consists of other thermodynamic characteristics. In the last chapter I used the upper air soundings data and values of instability indices of the University of Wyoming for one storm in Prague and I compared instability indices to each other. The group of the indices of potential temperatures was the most successful in the storm forecast, except the Rackliff index. The bulk Richardson number from the group of indices of wind shear forecasted a supercell storm correctly. The work could be used for creation of instability climatology of the Czech Republic on the basis of the selected instability indices. Keywords: instability index, convection, convective storm
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3D games in J2ME
Hanslík, Ondřej ; Yaghob, Jakub (advisor) ; Marek, Lukáš (referee)
Aim of this text is to introduce readers to the difficulties of 3D game development on J2ME mobile platform in all stages from primary design to distribution. History of 3D games is described in detail with emphasis to used physical and graphical algorithms. In successive chapters, accessible 3D technologies and APIs are compared. A separate chapter examines the possibilities of multiplayer games, analyzing Bluetooth technology in detail. Last chapters are dedicated to implementing an engine for First Person Shooter games based on M3G library.
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Parallel Processing and Software Performance
Marek, Lukáš
The thesis focuses on the effects of resource sharing on software performance for selected resources of modern processor architectures, especially shared memory caches. The thesis introduces a framework for conducting experiments that assess the impact on software performance, and, using this framework, designs, executes and evaluates the experiments. The results provide an estimate of the scale of the performance impact of resource sharing on the experimental platform.
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Economic Performance of the EU and the USA: Comparative Analysis
Marek, Lukáš ; Urban, Luděk (advisor) ; Perottino, Michel (referee)
Diploma thesis "Economic performance of the EU vis-à-vis the USA" deals with the issue of EU economic underperformance vis-à-vis the US economic efficiency. This negative trend can be observed since the early 70's. The analysis is based on the assumption that the economic gab between both economies rests on structural grounds. This paper focuses on two areas, which are important for economic growth in the EU. Firstly, it is the economic competition in the Common market. This theme is directly related to the process of European economic integration. The analysis indicates that good market accessibility for competitors stimulates productivity growth in the respective industry. However, firms in the Common market have to face higher barriers to entry and exit than their counterparts in the US. The second field of study deals with research and development in the member states. Present endogenous growth theories assume that technological progress is a crucial factor of long-term economic growth. European Common market should therefore create conditions favourable to business funded R&D so that more and better innovations can be introduced in Europe. However, the analysis indicates that the economic gab between the EU and the US takes place not just due to underdeveloped ICT and biotechnology sector. A great deal...
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Product placement and its perception by Czech population
Marek, Lukáš ; Tahal, Radek (advisor) ; Říha, David (referee)
This bachelor thesis deals with the process of inserting products, services and brands into audiovisual works, especially into television programmes and its perception by the Czech population. The aim of the thesis is to describe the history and development of product placement, analyze it not only as a part of the communication mix but also as a marketing tool. The aim is also to introduce its different kinds and the current trends. Besides that, the thesis focuses on the legislation framework, which provides for this type of advertisement. It also discusses the positive and negative aspects of this marketing tool. Marketing research using questionnaires was carried out to determine the perception of product placement in cinematography, serials and other audiovisual works. The bachelor thesis tries to find out the perception of product placement and general knowledge about it by Czech audience. In the end of the thesis there are presented possible measures for improving the process of inserting products or brands into audiovisual works. These measures are based on the results of the questionnaire survey.
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Analysis of stability conditions during heavy rains in the Czech republic
Marek, Lukáš ; Kašpar, Marek (advisor) ; Zacharov, Petr (referee)
In this thesis I describe the conceptual model of three kinds of instability in terms of precipitation. I describe ways of evaluating their presence in the atmosphere. They are: conditional instability, potential instability and symmetric instability. I have selected three events with strong precipitation in the Czech Republic so that the formation of each of them is with high probability involved in just one of the three kinds of instability. Events are first described using distance and station measurements. Through the NWP model COSMO are created prognostic fields of precipitation and several derived thermodynamic quantities for each event. On the horizontal (for the whole country) and vertical (for selected areas of the Czech Republic) distribution of these variables are demonstrated favourable conditions for the occurrence of the types of instability in the atmosphere. In the event of conditional instability the rainfall occurs in areas with high CAPE and negative or very small positive vertical lapse rate of potential temperature. The event with the potential instability is characterized by the occurrence of negative vertical lapse rate of equivalent potential temperature in the broad layers. The occurrence of symmetric instability suggests a number of indicators. The necessary occurence...
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DCSN: Platform for Distributed Computing in Small Networks
Háva, Jakub ; Marek, Lukáš (advisor) ; Falt, Zbyněk (referee)
This thesis describes the platform for distributed computing in small networks. The platform should be very easy to use and suitable for deployment typically in one local network. The implementation follows the client-server architecture and the communication between client and server is based on Remote Method Invocation. The server is responsible for tasks distribution and other computation management. The client receives commands from a user, mediates communication with the server and is also used for the processing of tasks received from the server. The user submits a computation project consisting of two parts: a zip archive containing data files and a JAR archive containing a configuration file together with Java classes needed for the computation on the user data. The user is allowed to query the project state, pause, download or abort the project computation. Powered by TCPDF (www.tcpdf.org)
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