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Languages, Grammars and Machines
Mocková, Ľubica ; Zimmerová, Barbora (referee) ; Bobalová, Martina (advisor)
My thesis is a brief synopsis of the basic types of formal languages, grammars and machines, which are a part of theoretical computer science. My thesis contains the survey of the theory related to the given topic and problems related to the theoretical part of my thesis. This work is to be used as a study material for the students of the Faculty of Business and Management for the subject of Discrete Mathematics. It can also be helpful for the students of other universities and faculties whose curricula contain theory of grammars and machines.
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Morphological Analyser Implemented as FSAs
Černý, Stanislav ; Černocký, Jan (referee) ; Smrž, Pavel (advisor)
We describe morphemic analyser using dictionary approach. Dictionary is saved as deterministic finite state automata. Another part of text deals with analysis of numerals, especially retrieving numeric value from that words. Besides the analysis there is description of generating word-formation relationships in this work.
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Comparison of Implementation Strategies of the DFA
Balgar, Marek ; Šimek, Václav (referee) ; Kaštil, Jan (advisor)
This bachelor thesis focuses upon the choices of methods, which are used to store automata on FPGA. There have been chosen these methods: bit-split, compress method and hash table. Then there are being compared the sizes of used memory, which are taken by automata in representation of these methods. The importaint part of this work is testing many kinds of samples. After the results have been achieved, I was able to examine the advantages and disadvantages of each method. Finally the analysis reveals which of the chosen methods is the best to store the automata on FPGA.
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Automatic Grouping of Regular Expressions
Stanek, Timotej ; Kořenek, Jan (referee) ; Kaštil, Jan (advisor)
This project is about security of computer networks using Intrusion Detection Systems. IDS contain rules for detection expressed with regular expressions, which are for detection represented by finite-state automata. The complexity of this detection with non-deterministic and deterministic finite-state automata is explained. This complexity can be reduced with help of regular expressions grouping. Grouping algorithm and approaches for speedup and improvement are introduced. One of the approches is Genetic algorithm, which can work real-time. Finally Random search algorithm for grouping of regular expressions is presented. Experiment results with these approches are shown and compared between each other.
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Detekcia a korekcia typografických jevov v značkovanom texte
Makeš, Dominik
In this thesis, I am dealing with an design and implementation of finite deterministic automaton. Its role is to process the ConTeXt input file and make a decision about its typography correctness. In next step, it will offer the recommendation how to correct the mistake and will be able to make simple automatic correction. Thesis is also including the comparision with existing programs and the tests on real documents. Thesis is also including theoretical subscription of formal languages and finite automaton.
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