National Repository of Grey Literature 664 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Path planning for multiple robots
Sekáč, Ondřej ; Šoustek, Petr (referee) ; Dvořák, Jiří (advisor)
This master thesis deals with path planning for multiple mobile robots. The theoretical part describes robot navigation -- mapping and path planning. Selected methods of artificial intelligence used in multi-robot path planning are described. In practical part simulator is implemented, in which selected algorithms were compared using experiments.
Advanced methods of mobile robot path planning
Maňáková, Lenka ; Šoustek, Petr (referee) ; Dvořák, Jiří (advisor)
This work is focused on advanced methods of mobile robot's path planning. The theoretical part describes selected graphical methods, which are useful for speeding up the process of finding the shortest paths, for example through reduction of explored nodes of the state space. In the practical part was created simulate environment in the Python language and in this environment, selected algorithms was implemented.
Path planning in uncertain environment by means of AO* algorithm
Foukal, Jakub ; Šoustek, Petr (referee) ; Dvořák, Jiří (advisor)
Master thesis is dedicated to path planning in uncertain environment focusing on AO* methods. In practical part it focuses on designing and implementation of own solving method for searching And/Or graph. To perform comparative experiments it was created a simulation program, which allows to test implemented algorithms.
Mobile robot path planning by means of cellular automata
Holoubek, Tomáš ; Šoustek, Petr (referee) ; Dvořák, Jiří (advisor)
This thesis deals with a path planning using cellular automata algorithms in a rectangular grid environment. Theoretical part starts with an overview of commonly used approaches for path planning and later on focuses on existing cellular automata solutions and capabilities in detail. Implemented cellular automata algorithms and the commonly used path planning algorithms are together with a map generator described in the practical part. Conclusion of this thesis contains results completed in a special application.
Random marked tessellations with applications in research of polycrystalline materials
Karafiátová, Iva ; Pawlas, Zbyněk (advisor) ; Dvořák, Jiří (referee)
Experimental data obtained from polycrystalline microstructure can be in certain situations viewed as a realization of a random field or as a realization of a random marked tessellation with marks such as grain volume or grain orientation. A natural question is, whether there are dependencies within the random field or whether the marks are assigned to each grain independently on the tessellation. In this work characteristics quantifying measure of spatial dependence between marks are presented and based on them non- parametric tests of independent marking of a tessellation are proposed. We investigate power of the tests on newly introduced models of dependently marked tessellations with marks from space representing grain orientation. Proposed methods are applied on real data of microstructure with cubic crystal lattice. 1
Safety of E-commerce
Jonáš, Martin ; Beroun,, Ivo (referee) ; Dvořák, Jiří (advisor)
Diplom´s thesis is supposed to formulation safety of information system functions, description of elktronic signature and certificion authority. Next is oriented at conversion, launching and application of elektronic signature.
Orthogonal series density estimation
Zheng, Ci Jie ; Dvořák, Jiří (advisor) ; Pawlas, Zbyněk (referee)
There exist many ways to estimate the shape of the underlying density. Generally, we can categorize them into a parametric and a nonparametric methodology. Examples of a nonparametric density estimation are histogram and kernel density estimation. Another example of the nonparametric methodology is orthogonal series density estimation. In this work, we will describe the fundamental idea behind this methodology. We will also show how Kronmal-Tarter method estimates the density of known underlying data.
Suggestion of electronic shop for special company MAX
Kovářová, Petra ; Dvořák,, Jiří (referee) ; Dvořák, Jiří (advisor)
I have chosen the proposal of an e-shop for a company MAX. The only problem with this business is that the owner still has not got web pages. With the help of questionnaires and market research I will try to find out if launching an e-shop is a good step for the owner.
DETECTION OF DEFECTS BY ACOUSTIC EMISSIONS (AE) UNDER HIGH-TEMPERATURE CREEP CONDITIONS
Dvořák, Jiří ; Sklenička, Václav ; Král, Petr ; Kvapilová, Marie ; Svobodová, M. ; Šifner, J. ; Koula, V.
Current acoustic emission (AE) applications are preferably oriented to continuous monitoring of machine component operation. AE is a perspective non-destructive method for early prediction and identification of material defects to avoid a disaster of running equipment. The paper analyzes the measured data and analysis of signals at the level of individual emission events during the creep test of a copper based on the results of previously performed microstructural and fractographic analyses of its creep damage evolution and fracture. The aim of the model study is to contribute to the successful application of AE for real operating components of power equipments and thus to increase their operational safety.
Estimator averaging
Plotnikova, Valeriya ; Dvořák, Jiří (advisor) ; Čoupek, Petr (referee)
We investigate general procedure to combine several estimators of the same real parameter in the parametric model. Considering weighted average of initial estimator, where weights are constrained to the sum of one, we obtain the final combined estimator. In that framework, the optimal vector of weights minimises the mean square error, providing better estimator of parameter. Combined es- timator will be computed as the product of vector of weights and the vector of initial estimators of the parameter. This method is frequently used in numerous problems of modern statistics like forecast averaging for time series.

National Repository of Grey Literature : 664 records found   1 - 10nextend  jump to record:
See also: similar author names
76 DVOŘÁK, Jan
43 DVOŘÁK, Jiří
23 DVOŘÁK, Josef
5 Dvorak, J.
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28 Dvořák, Jakub
76 Dvořák, Jan
1 Dvořák, Jan Bc.
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3 Dvořák, Jindřich
1 Dvořák, Jiří Ing.
23 Dvořák, Josef
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