System for data mining Fit-Miner is now dependant on only one specific DBMS. This master’s thesis  deals with analysis of implementation that works with database, modules and functions for data mining. Next it shows the set of changes which will allow FIT-Miner to work with another DBMS. And finally, a description of the implementation of these changes.

The master's thesis deals with the knowledge discover in databases and with the extending of the data mining systems in the Oracle environment developed at the VUT FIT. The system kernel conception incorporates an interface that enables the adding of data mining modules. The objective of the thesis is to learn this interface and implement and embed the data mining module for decision-tree classification into the application. In addition, the thesis compares the application with similar commercial product SAS Enterprise Miner

En raison de leur rôle central dans la physiologie et le développement des plantes, les phythormones ont depuis longtemps été considérées comme des médiateurs chimiques déterminants dans la capacité des insectes à contrôler leur environnement végétal. Les mécanismes permettant aux insectes de manipuler la balance phytohormonale permettant ainsi la régulation des apports nutritifs et la modulation des défenses végétales demeurent néanmoins pour la plupart inconnus, en particulier pour les insectes galligènes et mineurs de feuilles. L’objectif de ma thèse visait à caractériser les capacités de modulation phytohormonale par les insectes manipulateurs de plantes avec un accent particulier sur le lépidoptère mineur de feuille Phyllonorycter blancardella. Nous avons ainsi développés une caractérisation spatio-temporelle de la réponse des plantes aux attaques des larves mineuses au niveau moléculaire et biochimique. Une comparaison entre différents systèmes biologiques nous a permis d’évaluer les similitudes entre les stratégies adoptées par les les insectes galligènes et les insectes mineurs de feuilles, d’identifier l’origine possible des phytohormones impliquées dans la manipulation de la plante et le rôle des bactéries endosymbiotiques d’insectes dans ces interactions. / Because phytohormones lie at the very core of molecular mechanisms controlling the plant physiology and development, they have long been hypothesized to be involved in insect-induced plant manipulations. Insects are using phytohormones to manipulate their host plants for their own benefit, regulating nutrient provisioning and plant defenses. However, a mechanistic understanding of how phytohormones operate in plant reconfigurations by plant-manipulating insects, especially by gall-inducing and leaf-minging insects, is lacking. The objective of my Ph.D. was to provide an extensive characterization of how plant-manipulating insects modulate the plant global hormonal balance with a specific focus on the leaf-mining moth Phyllonorycter blancardella. We thus developed a time course characterization of plant transcriptomic and biochemical responses following attack by leaf-mining larvae. A comparative analysis between different biological systems allowed us to estimate similarities in strategies developed leaf-mining and gall-inducing insects, to identify the possible origin of phytohormones involved in the plant manipulation and to estimate the role of insect endosymbiotic bacteria in these interactions.

Fundação de Amparo a Pesquisa do Estado de Minas Gerais / Transformations in global capitalism, during the last two decades, have been accompanied by changes in cultural and ethical values. There are contradictory developments which make some elements more homogeneous while deepening differences between other ones. Among such elements, the dynamics of social peripheries, urban and rural, come to the fore. Cyclical movements of capitalism, mainly in sub-national spaces, generate sui generis social mobilizations of great diversity. That is why, perhaps, there is a proliferation of studies and actions showing new methodologies of development, which highlight the role of individuals in the project of transformation of local/territorial reality by means of actions based on solidarity, reciprocity, trust and cooperation, which characterize a solidary economy. This kind of economy is an alternative model , with organized workers that are active in the process of socioeconomic transformation of the reality in which they live. The object of this thesis is to understand by means of a field research among solidary economic ventures, which perform collectively activities of production, commercialization and management, in the Northern Region of the state of Minas Gerais (in a region called sertão ) their actual capacity of planning their future and improving the socioeconomic conditions in their locality. / As transformações do capitalismo global, nos últimos vinte anos, vêm acompanhadas de alterações dos valores culturais e éticos. Há movimentos contraditórios de homogeneização de alguns elementos e aprofundamento das diferenças de outros, entre os quais se destacam dinâmicas das periferias sociais (urbanas e rurais). Os movimentos cíclicos do capitalismo, sobretudo no âmbito dos espaços subnacionais, engendram movimentos sociais sui generis de grande diversidade. Por esse motivo, talvez, observa-se a proliferação de estudos e ações envolvendo novas metodologias de desenvolvimento que privilegiam o papel do indivíduo no projeto de transformação da realidade local/territorial, por meio de ações apoiadas na solidariedade, reciprocidade, confiança e cooperação, características presentes na economia solidária. A economia solidária é um modelo alternativo, com trabalhadores organizados e ativos no processo de transformação socioeconômico da realidade em que vivem. Nesse sentido, o objetivo desta tese é compreender - por meio de pesquisa de campo com empreendimentos econômicos solidários, que exercem coletivamente a produção, comercialização e gestão de atividades, no território do Sertão Norte Mineiro - sua capacidade concreta de traçar o seu futuro e melhorar as condições socioeconômicas na sua localidade. / Doutor em Economia

This thesis deals with a complete analysis of real data in free to play multiplayer games. The analysis is based on the methodology CRISP-DM using GUHA method and system LISp-Miner. The goal is defining player churn in pool from Geewa ltd.. Practical part show the whole process of knowledge discovery in databases from theoretical knowledge concerning player churn, definition of player churn, across data understanding, data extraction, modeling and finally getting results of tasks. In thesis are founded hypothesis depending on various factors of the game.

This thesis deals with digital image stabilization. It contains a brief overview of the problem and available methods for digital image stabilization. The aim was to design and implement image stabilization system in JAVA, which is designed for RapidMiner. Two new stabilization methods have been proposed. The first is based on the motion estimation and motion compensation using Full-search and Three-step search algorithms. The basis of the second method is the detection of object boundaries. The functionality of the proposed method was tested on video sequences with contain visible shake of the scene, which has beed created for this purpose. Testing results show that with the proper set of input parameters for the object border detection method, successful stabilization of the scene is achieved. The rate of error reduction between images is approximately about 65 to 85%. The output of the method is stabilized image sequence and a set of metadata collected during stabilization, which can be further processed in an environment of RapidMiner.

This master's thesis deals with with FIT-Miner, the system for knowledge discovery in databases. The first part of this paper describes the data-mining process, mixture model's issues and FIT-Miner system. Second part deals with design, implementation and testing of created module, which is used for cluster analysis with Expectation-Maximalization algorithm. The end of the paper is focused to design of modules using Java Store Procedures Technology.

Virtual currencies and mobile banking are technology advancements that are receiving increased attention in the global community because of their accessibility, convenience and speed. However, this popularity comes with growing security concerns, like increasing frequency of identity theft, leading to bigger problems which put user anonymity at risk. One possible solution for these problems is using cryptography to enhance security of Bitcoin or other decentralised digital currency systems and to decrease frequency of attacks on either communication channels or system storage. This report outlines various methods and solutions targeting these issues and aims to understand their effectiveness. It also describes Secure Bitcoin Wallet, standard Bitcoin transactions client, enhanced with various security features and services.

The goal of this work is to create data mining module for information system Belinda. Data from database of clients will be analyzed using SAS Enterprise Miner. Results acquired using several data mining methods will be compared. During the second phase selected data mining method will be implemented such as module of information system Belinda. The final part of this work is evaluation of acquired results and possibility of using this module.

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