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Adaptive agents and emotions
Kadlec, Rudolf ; Brom, Cyril (advisor) ; Kryl, Rudolf (referee)
This thesis investigates possible assets of emotions for autonomous adaptive agents working in environments similar to the real world. In living organisms, emotions have developed as a mechanism of adaptation to the surrounding environment. Therefore it is worth asking whether mechanisms similar to emotions can be implemented in models of autonomous agents. In this thesis a model of ethology inspired agent using reinforcement learning was implemented. This model suggests that emotions influence the balance between exploring new strategies and exploiting the strategies already known (the so-called explore/exploit problem). Negative emotional evaluation leads to changes in action selection strategy. The emotional version proved to be better than the non-emotional one in some environments. In other types of environments, the expectations have not been fulfilled. The instability of the received results is probably caused by non-optimal parameterization of the whole model.
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Animation of Automata
Schejbal, Jiří ; Kryl, Rudolf (advisor) ; Holan, Tomáš (referee)
The aim of this work is to create a graphic environment for studying finite automata and to build a Delphi component library, which contains components representing automata. Creating a set of automata operations, that can represent a mathematical proof of automata thesis, is also important part of work. Also the implementation of these operations inside the environment as a built-in script language. The work also contains a guide of how to extend the component library and the script language.
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JAWS Framework for Non-standard Applications
Ficek, Michal ; Cejnar, Pavel (advisor) ; Kryl, Rudolf (referee)
The JAWS application (www.freedomscienti c.com) is capable of allowing access of blind users to computer controls. Applications with graphical control elements that often substitute for standard controls of Microsoft Windows or applications that don't support full keyboard control have to be modi ed with JAWS scripting language to give out sounds and allow control of the sight impaired. This project describes creation of a script for speci c application and analyzes what parts of the script can be automatically generated. At the same time we introduce JAWS Framework - application with included users manual, technical documentation and discussion of solutions according to the speci fication of our project.
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Software support for accessibility of applications for blind and visually impaired users
Ficek, Michal ; Kryl, Rudolf (advisor) ; Holan, Tomáš (referee)
The aim of this thesis is to map contemporary state of the art of accessibility in software applications and to present a practical implementation of accessibility testing tool. The work species accessible software concept: design and implementation steps which aect the accessibility of an application in terms of cooperation with accessible technology for blind and visually impaired users. The thesis studies and presents contemporary accessibility methods with focus on accessibility API. It introduces the taxonomy, description and a comparison between the most commonly used screen-readers and an overview of available accessibility testing tools. A part of this work is also a practical implementation of accessibility testing tool called JAWS Accessibility Explorer. Unique approach to software testing used in this tool is based on screen-reader JAWS application for automated probing of tested program and subsequent accessibility validation.
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Environment for Animation of Algorithms - Interpreter and Animation Control
Římský, Pavel ; Kryl, Rudolf (advisor) ; Holan, Tomáš (referee)
This work deals with some of the main components of the AAnim software project. The AAnim project is an environment (written in Java) for visualisation of algorithms, the user can write their own programs in pseudocode (the AL language), set breakpoints, observe current values of variables in a table and also in a gure, modify the values of the variables when the program is running and watch the process of the algorithm in a special panel (called animator). The main emphasis has been put on extendability - it is possible to extend the AL language with new functions, procedures and data types (using so called modules), it is possible to add new renderes of variables' values and add new animators. This work deals with module management, interpreter, animation control, code editor, main GUI aspects and summarises experience acquired by the author during creation of the project.
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Artificial intelligence for real-time strategic games
Sýkora, Ondřej ; Brom, Cyril (advisor) ; Kryl, Rudolf (referee)
Among the computer game players, real-time strategy games (RTS) are one of the most popular genres. Despite of this fact, there is a very low number of publications concerning this genre. In this thesis we study the problem of an action selection in the real-time strategy games using methods based on Markov decision processes. In the first chapters we introduce the genre of real-time strategy games from the game designer's perspective as well as from the view of an artificial intelligence researcher. We give an introduction to the Markov decision processes and to methods designed to solve them. We propose a solution of the problem of an action selection based on Markov decision problem solving using a discrete-event simulation of the real-time strategy game. We test the clarity of the proposed method and its properties.
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Petri nets
Kozák, Michal ; Richta, Karel (referee) ; Kryl, Rudolf (advisor)
The aim of this work is to create a graphic tool for development and simulation of Petri nets. For practical and easier use of a Petri net the user defines a template for elements of the Petri net. These templates can be used in development of future Petri nets. The process of simulation can be watched and debugged via conditioned breakpoints. The flow of the simulation is controlled by scripts. The application implements script interface to give the user a way to control components of the Petri net. The user can write scripts procedures and can call them in the script.
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Artificial intelligence for real-time strategic games
Sýkora, Ondřej ; Kryl, Rudolf (referee) ; Brom, Cyril (advisor)
Among the computer game players, real-time strategy games (RTS) are one of the most popular genres. Despite of this fact, there is a very low number of publications concerning this genre. In this thesis we study the problem of an action selection in the real-time strategy games using methods based on Markov decision processes. In the first chapters we introduce the genre of real-time strategy games from the game designer's perspective as well as from the view of an artificial intelligence researcher. We give an introduction to the Markov decision processes and to methods designed to solve them. We propose a solution of the problem of an action selection based on Markov decision problem solving using a discrete-event simulation of the real-time strategy game. We test the clarity of the proposed method and its properties.
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