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Este trabalho tem por objetivo a caracterização de filmes finos de óxido de alumínio produzidos por deposição assistida por feixe de íons Ar+. Tal caracterização consiste em estabelecer a relação entre os parâmetros de produção (energia do feixe e uxo relativo de Ar), a composição e a estrutura dos lmes. Para tanto, utiliza-se técnicas de microscopia de força atômica, difração de raios-x, reetividade de raios-x e análise por feixe iônico. Resultados mostram que amostras produzidas à temperatura ambiente e à 450 oC são amorfas independentemente da energia do feixe iônico. Filmes formados com assistência de feixe possuem qualidade superior àqueles formados por deposição física de vapor. O bombardeamento de íons Ar+ mostra-se capaz de controlar a concentração de hidrogênio, a estequiometria, a rugosidade, o tamanho dos grãos e a densidade dos lmes nos. Amostras com excelente qualidade baixa rugosidade, estequiometria próxima da ideal e boa densidade foram produzidas utilizando íons com energia dentre 300 eV e 600 eV. / The scope of this work is the characterization of aluminum oxide thin films produced by Ar+ ion beam assisted deposition. This characterization consists in establishing the relationship between production parameters (ion beam energy and argon relative ux), structure and composition of these lms. In order to undertake this task, the following techniques were used: atomic force microscopy, x-ray diraction, x-ray reectivity and ion beam analysis. Results show that samples produced at room temperature and at 450 oC are amorphous regardless the ion beam energy. Films grown under ion assistance have better characteristics than the ones deposited by physical vapor deposition. The ion beam bombardment is capable of controlling hydrogen concentration, stoichiometry, roughness, grain size and density of alumina samples. High quality lms at surface and increased density lms with near ideal stoichiometry were produced with 300 eV and 600 eV ion beam energy.

This diploma thesis covers KDD analysis of data and options of presentation of KDD results on Web. The paper is divided into three main sections, which follow the whole process of this thesis. In the first section are mentioned theoretical basics needed for understanding of discussed problem. In this section are described notions data matrix and domain knowledge, concept of CRISP-DM methodology, GUHA method, system LISp-Miner and implementation of GUHA method in LISp-Miner including description of core procedures 4ft-Miner and CF-Miner. The second section is dedicated to the first goal of this paper. It briefly summarizes analysis made during pre-analysis phase. Then is described process of analysis of domain knowledge in a given data set. The third part focuses on the second goal of this thesis, which is problem of presentation of KDD results on Web. This section covers brief theoretical basis for used technologies. Then is described development of export script for automatic generation of website from results found using LISp-Miner system including description of structure of the output and recommendations for work in LISp-Miner system.

This thesis is concerned with the explanation of the word2vec models. Even though word2vec was introduced recently (2013), many researchers have already tried to extend, understand or at least use the model because it provides surprisingly rich semantic information. This information is encoded in N-dim vector representation and can be recall by performing some operations over the algebra. As an addition, I suggest a model modifications in order to obtain different word representation. To achieve that, I use public picture datasets. This thesis also includes parts dedicated to word2vec extension based on convolution neural network.

Данная магистерская диссертация посвящена семантике английского предлога over. Также в рамках данной работы были рассмотрены различные подходы к описанию семантики пространственной лексики и факторы, влияющие на концептуализацию пространственной ситуации в языке. В работе доказывается, что описание семантической структуры предлога over является сложной задачей и требует объяснения широкого спектра языковых феноменов вследствие большого разнообразия его значений. Теоретическая часть работы посвящена способам описания семантики пространственной лексики; рассматриваются элементы пространственной схемы; подробно исследуются модели описания семантики предлогов, предложенные Л. Талми, А. Герсковитс и К. Ковентри. В ходе работы нами была описана семантическая структура английского предлога over, отражающая большинство случаев употребления предлога; выявлены факторы, влияющие на возможность/невозможность употребления предлога в определенном контексте, а также объяснены связи между различными значениями и описана модель взаимодействия предлога с контекстом высказывания. Для подтверждения полученных теоретических положений в практической части мы обращаемся к постановке эксперимента. Для проведения экспериментов нами была разработана интерактивная анкета-опросник в приложении Google docs и размещена на сайте гражданской науки scistarter.com для привлечения носителей языка для участия в эксперименте. В результате мы выяснили ряд параметров, влияющих на употребимость предлога over. / The master’s thesis is devoted to semantics of the English spatial preposition “over”. The author has highlighted various approaches to the description of spatial vocabulary and factors affecting the conceptualization of space within language. Semantic structure of “over” is considered to be a complex issue, as it requires taking into account a lot of linguistic phenomena due to the huge variety of its meanings. The theoretical part of the thesis deals with different ways of depicting the semantics of spatial vocabulary; it also demonstrates the elements of spatial schemes and models of description of the semantics of prepositions introduced by L. Talmy, A. Herskovits and K. Coventry. The author reveals the semantic structure of the English spatial preposition “over” and its usage; presents factors affecting the (im)possibility of using this preposition in a certain context; explains the relations between several meanings of “over” and introduces the model of interaction between the preposition and its immediate context. To support the theoretical claims the author has conducted an experiment. He has developed an interactive survey in Google docs and placed it on www.scistarter.com (a website of citizen science) to invite native speakers to join the experiment. As a result, the thesis offers several parameters affecting the usage of the English spatial preposition “over”.