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Meta-Learning in the Area of Data Mining
Kučera, Petr ; Hlosta, Martin (referee) ; Bartík, Vladimír (advisor)
This paper describes the use of meta-learning in the area of data mining. It describes the problems and tasks of data mining where meta-learning can be applied, with a focus on classification. It provides an overview of meta-learning techniques and their possible application in data mining, especially model selection. It describes design and implementation of meta-learning system to support classification tasks in data mining. The system uses statistics and information theory to characterize data sets stored in the meta-knowledge base. The meta-classifier is created from the base and predicts the most suitable model for the new data set. The conclusion discusses results of the experiments with more than 20 data sets representing clasification tasks from different areas and suggests possible extensions of the project.
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Development of materials used for downhill skis production
Václavík, Martin ; Jech, David (referee) ; Pavloušková, Zina (advisor)
The submitted thesis is a retrieval type and is concerned with the technologies and materials used in the manufacture of downhill skis with a deeper focus on the last ten years. Examined are materials for the manufacture of ski cores as well as other parts of the ski, and that in terms of comparison of the construction materials and technologies. Listed are basic elements and characteristics of skis, methods of manufacture, materials for the manufacture of individual parts of the skis and, last but not least, the types of skis. The work is eked out with the analysis of several samples of skis, on which were made cuts, they were observed and structures were compared. The aim of this observation was to determine whether the materials found in the practical section corresponds to the information contained in the theoretical part.
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Long-term development of raw materials prices
Guchshina, Yekaterina ; Čabla, Adam (advisor) ; Vild, Jiří (referee)
This bachelor thesis focuses on long-term development of raw materials and connected with them Simon - Ehrlich bet. Basic data were obtained from accessible databases USGS. The aim of this thesis is by statistical methods to survey the development of prices five metals: copper, tungsten, tin,chromium and nickel, compare the data with an average income and money supply and try to extend famous Simon-Ehrlich wager to 2010 year. This thesis is divided into five parts. In the first two is described wager a background information of the development of metals and their prices. The statistical methods used in the work and their use to equalize basic data are described in the third and fourth chapters. The fifth chapter is an overview of prolongation bet in 1990-2010 period.
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Nd:YAG pulsed laser cutting of metals
Chmelíčková, Hana ; Polák, Marek
Pulsed Nd:YAG laser KLS 246-102 with average power 150W was developed for cutting, drilling and welding of metal and non-metal materials with thickness up to 2 mm. We chose an usually used kind of metal, steel (class 11) to test the optimal cutting conditions on various thickness from 0.1 to 1 mm.
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