Made available in DSpace on 2016-04-26T18:14:13Z (GMT). No. of bitstreams: 1 Viviane Lima Martins.pdf: 7398293 bytes, checksum: 84eca9c0be47d0ca8fb14129a81b951d (MD5) Previous issue date: 2014-06-25 / This research aims to investigate the extreme changes on the bodies in programs that represent the called reality TV, like reality shows and television documentaries. The body is socially constructed and falls over itself marks that identify and particularize the individual. Transform the surface of the body is a practice that provokes fascination, considering that it goes beyond just seeking a healthy look and perfect body, making embodied idea on the surface of the body. In this context, the body becomes a living record that are registered affections, emotions, representations of history and the subject of his time. While half the body is an instrument of communication and inscribes itself on a textual composition and culture of the social group, which appears resigned to their attitudes and their characterization. However, in the media there is almost no space for description of the actions of called outsiders, the name given by Norbert Elias and John Scotson, to people who, somehow, escape to normal standards, thus thematising processes of social stigmatization, common in many countries. The emergence of numerous bodily techniques and practices (re)physical modeling is anchored in the idea of autonomy and self-regulation of the subject in relation to his/her body, thereby reinforcing a behavior of aversion to bodies that deviate from the dominant aesthetic standard. Thus, the primary goal is to study the position and function of the body as text, and the ways in which the bodies are discursed - accepted standards, as well as outsiders bodies in the programs that comprise the corpus - Extreme Makerover and Tabu Latino America -, thus proposing a study of the maps of values and their communicative contracts. The passionate paths are examined from the semiotics of passions of Greimas and Fontanille, and discursive analyzes are carried out with contributions from Diana Barros, David Le Breton, Beatriz Pires, Bill Nichols and Joseph Campbell, prioritizing interactional issues that affect the body as communication tool. The passions, whether external or figurativizadas the programs, motivate attitudes that lead the individual to transform his own body, and media exposure enhances behavioral and aesthetic concepts and values that are positivized or negative results by common sense of the viewer who consumes this spectacular corporeality aportada on TV / A presente pesquisa tem por objetivo investigar as alterações extremas realizadas nos corpos nos programas que representam a chamada reality TV, como os reality shows e os documentários televisivos. O corpo é socialmente construído e inscreve sobre si marcas que identificam e particularizam o indivíduo. Transformar a superfície do corpo é prática que provoca fascínio, haja vista que se vai além de apenas buscar uma aparência saudável e de corpo perfeito, fazendo encarnar o ideal na superfície do corpo. Neste contexto, o corpo passa a ser registro vivo em que são inscritos afetos, emoções, representações da história do sujeito e de seu tempo. Enquanto meio, o corpo é um instrumento de comunicação e inscreve sobre si uma composição textual e a cultura do grupo social, que aparece conformada em suas atitudes e sua caracterização. Entretanto, nas mídias quase não há espaço para inscrição das ações dos chamados outsiders, denominação dada, por Norbert Elias e John Scotson, a pessoas que, de alguma forma, fogem aos padrões considerados normais, tematizando, assim, os processos de estigmatização social, comuns em vários países. O surgimento das inúmeras práticas corporais e técnicas de (re)modelagem física se ancora na ideia de autonomia e autorregulação do sujeito com relação ao seu corpo, reforçando, com isso, um comportamento de aversão com relação aos corpos que desviam do padrão estético dominante. Desta forma, o objetivo fundamental da pesquisa é estudar a posição e a função do corpo enquanto texto, e os modos pelos quais são discursivizados os corpos-padrões aceitos, bem como os corpos outsiders nos programas que compõem o corpus Extreme Makerover e Tabu América Latina -, propondo, assim, um estudo sobre os mapas de valores e os respectivos contratos comunicativos. Os percursos passionais são examinados a partir da semiótica das paixões, de Greimas e Fontanille, e as análises discursivas são realizadas com aportes de Diana Barros, David Le Breton, Beatriz Pires, Bill Nichols e Joseph Campbell, priorizando questões interacionais que concernem ao corpo enquanto instrumento de comunicação. As paixões, sejam externas ou figurativizadas pelos programas, motivam atitudes que levam o sujeito a transformar o próprio corpo, e a exposição midiática realça conceitos e valores estéticos e comportamentais que são positivados ou negativados pelo senso comum do espectador que consome esta corporeidade espetacular aportada na televisão

CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior / A anÃlise de formas representa um papel importante em aplicaÃÃes de visÃo computacional e processamento de imagens, e a representaÃÃo da forma à o primeiro passo para esta anÃlise. Esta presente dissertaÃÃo discute e aborda um conjunto de tÃcnicas disponÃveis na literatura para a geraÃÃo de uma representaÃÃo adequada de formas baseada em cantos. A abordagem proposta provà uma decomposiÃÃo wavelet nÃo-decimada do contorno representado pelo sinal de angulaÃÃo e curvatura afim de representar uma forma por seus pontos mais relevantes sem requerer intervenÃÃo do usuÃrio. A metodologia adotada apresenta resultados promissores, faz uso de ferramentas disponÃveis na literatura e elimina caracterÃsticas redundantes da forma com o intuito de alcanÃar uma representaÃÃo que mantenha uma reconstruÃÃo adequada da forma original. Uma nova medida de avaliaÃÃo, sob o aspecto do erro obtido na reconstruÃÃo, tambÃm à apresentada de modo a confirmar que o algoritmo proposto realiza com sucesso a sua meta e supera os detectores de cantos utilizados para testes e comparaÃÃes. / Shape analysis plays an important role in computer vision and image processing applications and shape representation is the first step towards it. The current dissertation discusses a set of techniques available in the literature in order to generate an adequate shape representation based on corners. The proposed approach provides an non-decimated wavelet decomposition of the represented contour by curvature and angulation signals in order to represent the shape using the most relevant contour points without requiring any user intervention. The adopted methodology presents promising results and it uses a set of tools, with little highlight in the literature, and it eliminates the redundant shape features in order to accomplish the suitable representation of the original shape. A novel evaluation measure, concerning the reconstruction error, is also presented to confirm that the proposed algorithm achieves its goal and outperforms other corner detectors used for tests and comparison.

We develop and evaluate algorithms for generating random variates for simulation input. One group called automatic, or black-box algorithms can be used to sample from distributions with known density. They are based on the rejection principle. The hat function is generated automatically in a setup step using the idea of transformed density rejection. There the density is transformed into a concave function and the minimum of several tangents is used to construct the hat function. The resulting algorithms are not too complicated and are quite fast. The principle is also applicable to random vectors. A second group of algorithms is presented that generate random variates directly from a given sample by implicitly estimating the unknown distribution. The best of these algorithms are based on the idea of naive resampling plus added noise. These algorithms can be interpreted as sampling from the kernel density estimates. This method can be also applied to random vectors. There it can be interpreted as a mixture of naive resampling and sampling from the multi-normal distribution that has the same covariance matrix as the data. The algorithms described in this paper have been implemented in ANSI C in a library called UNURAN which is available via anonymous ftp. (author's abstract) / Series: Preprint Series / Department of Applied Statistics and Data Processing

We use inequalities to design short universal algorithms that can be used to generate random variates from large classes of univariate continuous or discrete distributions (including all log-concave distributions). The expected time is uniformly bounded over all these distributions. The algorithms can be implemented in a few lines of high level language code. In opposition to other black-box algorithms hardly any setup step is required and thus it is superior in the changing parameter case. (author's abstract) / Series: Preprint Series / Department of Applied Statistics and Data Processing

The city of Shanghai was transformed from a treaty port of around half a million people when the British first arrived after the end of the Opium War to become the most populous, prosperous, and cosmopolitan metropolis in China by the early 20th century. The development of public transportation systems contributed significantly to the urban expansion and growth of the city, as well as in reshaping the city's identity. This dissertation examined the impact of public transportation on the urban landscape of Shanghai by focusing on three major issues: "tradition versus modernity", state and society relations, and the relationship between technology and society. As a divided city governed by three separate political jurisdictions, Shanghai offered a unique perspective in understanding the roles public transportation and urban planning played in changing a city's layout. This dissertation addressed the specific differences in the development of urban infrastructure and its impact on population growth, mobility and accessibility, and economic prosperity of the British controlled International Settlement, the French Concession, and the Chinese city. The first half of the dissertation analyzed the roles in which "traditional" man-powered vehicles such as the wheelbarrow, sedan chair, horse-drawn carriage, and rickshaw played, before delving into the arrival of "modern" machine-powered vehicles such as automobiles, trams, trolleys, and buses in the early 20th century. Each form of transportation vehicle is discussed for its specific role, and the type of clientele it catered. This dissertation argued that man-powered vehicles and machine-powered vehicles did not necessarily compete with each other for passengers, as each type of vehicle served its specific purposes and clients. Public transportation; just like food, clothing, or housing is a form of material culture where one's socioeconomic or class status is revealed by the type of transport one chooses. Because the different types of vehicles did not directly compete with each other, they all saw significant increases in ridership. The 'tradition versus modernity" theme is aimed at addressing the bigger picture of "continuity and change", where Shanghai was transformed by foreign influences yet at the same time it still retained traditional Chinese characteristics to form a complex identity. The second half of the dissertation dealt with state and society relations, and the relationship of technology and society. The issue of public versus private responsibility is addressed with historical analysis of government orchestrated urban planning and the private sector providing the services to fulfill the people's needs and demands. In focusing on these two themes, this dissertation argued that technology has inherent political agenda attached to it, as government policies specifically created areas of the city which had better public transportation infrastructure, which led to these parts of the city being more commercially prosperous and vibrant than others. Routes, lines, and stops were designated with specific political purposes in mind, and public transportation accessibility contributed to the uneven economic developments across the city. The Greater Shanghai Project of 1927-1937 was a specific attempt by the Chinese government to create a new city center that could shift the population away from the foreign concessions into the Chinese territories. This dissertation argued that this campaign would not have been feasible even without the Japanese attack due to insufficient public funds. The findings in this dissertation will hopefully add to the scholarship on the history of Shanghai and the history of technology in China.

In this paper we describe a version of transformed density rejection that requires less uniform random numbers. Random variates below the squeeze are generated by inversion. For the expensive part between squeeze and density an algorithm that uses a coverering with triangles is introduced. (author's abstract) / Series: Preprint Series / Department of Applied Statistics and Data Processing

We use inequalities to design short universal algorithms that can be used to generate random variates from large classes of univariate continuous or discrete distributions (including all log-concave distributions). The expected time is uniformly bounded over all these distributions for a particular generator. The algorithms can be implemented in a few lines of high level language code. (author's abstract) / Series: Preprint Series / Department of Applied Statistics and Data Processing

Diss. (sammanfattning) Umeå : Umeå universitet, 2010.

Submitted by Aelson Maciera (aelsoncm@terra.com.br) on 2017-08-03T20:04:27Z No. of bitstreams: 1 TeseBSA.pdf: 10322083 bytes, checksum: 4c30c490934f23dbad9d5a1f087ef182 (MD5) / Approved for entry into archive by Ronildo Prado (ronisp@ufscar.br) on 2017-08-08T19:09:23Z (GMT) No. of bitstreams: 1 TeseBSA.pdf: 10322083 bytes, checksum: 4c30c490934f23dbad9d5a1f087ef182 (MD5) / Approved for entry into archive by Ronildo Prado (ronisp@ufscar.br) on 2017-08-08T19:09:30Z (GMT) No. of bitstreams: 1 TeseBSA.pdf: 10322083 bytes, checksum: 4c30c490934f23dbad9d5a1f087ef182 (MD5) / Made available in DSpace on 2017-08-08T19:15:39Z (GMT). No. of bitstreams: 1 TeseBSA.pdf: 10322083 bytes, checksum: 4c30c490934f23dbad9d5a1f087ef182 (MD5) Previous issue date: 2016-12-16 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Generalized autoregressive moving average (GARMA) models are a class of models that was developed for extending the univariate Gaussian ARMA time series model to a flexible observation-driven model for non-Gaussian time series data. This work presents the GARMA model with discrete distributions and application of resampling techniques to this class of models. We also proposed The Bayesian approach on GARMA models. The TGARMA (Transformed Generalized Autoregressive Moving Average) models was proposed, using the Box-Cox power transformation. Last but not least we proposed the Bayesian approach for the TGARMA (Transformed Generalized Autoregressive Moving Average). / Modelos Autoregressivos e de médias móveis generalizados (GARMA) são uma classe de modelos que foi desenvolvida para extender os conhecidos modelos ARMA com distribuição Gaussiana para um cenário de series temporais não Gaussianas. Este trabalho apresenta os modelos GARMA aplicados a distribuições discretas, e alguns métodos de reamostragem aplicados neste contexto. É proposto neste trabalho uma abordagem Bayesiana para os modelos GARMA. O trabalho da continuidade apresentando os modelos GARMA transformados, utilizando a transformação de Box-Cox. E por último porém não menos importante uma abordagem Bayesiana para os modelos GARMA transformados.

Submitted by Emanuel Varela Cardoso (emanuel.varela@ufcg.edu.br) on 2018-08-15T16:36:49Z No. of bitstreams: 1 ANTONIO MARCOS DELFINO DE ANDRADE – TESE (PPGMet) 2017.pdf: 3321439 bytes, checksum: 641b9755396203a4dd27ac62503ca9e8 (MD5) / Made available in DSpace on 2018-08-15T16:36:49Z (GMT). No. of bitstreams: 1 ANTONIO MARCOS DELFINO DE ANDRADE – TESE (PPGMet) 2017.pdf: 3321439 bytes, checksum: 641b9755396203a4dd27ac62503ca9e8 (MD5) Previous issue date: 2016-02-19 / Capes / A radiação de onda longa incidente (L↓) é seguramente a componente do balanço de radiação mais difícil de ser medida. Portanto, diferentes formulações têm sido propostas para estimá-la. Desta maneira, avaliou-se neste estudo o desempenho de várias formulações para a estimativa dos fluxos de L↓ e sua a interação com outras variáveis medidas, bem como as interações da temperatura do ar e da pressão de vapor d’água junto à L↓. Neste estudo foi utilizada a análise pela transformada em ondeletas (TO) como ferramenta matemática para a análise de variações locais de energia dentro das séries temporais aqui estudadas, pela sua decomposição no tempo-frequência-espaço. Para investigar a correlação entre duas séries (L↓ com a temperatura do ar e da L↓ medida com as estimadas por cada modelo), empregou-se transformada cruzada em ondeletas e a coerência e fase em ondeletas. Os dados deste estudo compreendem o período de 01 de janeiro a 31 de dezembro de 2009, e são provenientes da torre micrometeorológica (K34) pertencente ao Experimento de Grande Escala da Biosfera Atmosfera na Amazônia (LBA) em Manaus, Amazonas. A TO revelou que no período de 36 horas, para todo período analisado, um persistente, homogêneo e forte espectro energético entre a L↓ e a temperatura do ar, onde se constatou uma sinergia entre essas variáveis. Constatou -se ainda que a precipitação e a pressão de vapor d’água exercem bastante influencia nos fluxos de L↓, principalmente na estação chuvosa. A análise através da transformada cruzada e de coerência e fase em ondeletas no período de 32 a 64 horas. Já nos modelos ajustados foram no período de 16 a 64 horas. Os modelos propostos para condições de céu claro, com o uso de seus coeficientes originais, mostraram tendência em subestimar os fluxos de L↓ medidos. Com os ajustes nos coeficientes, os modelos expuseram uma melhora nas estimativas nos fluxos de L↓.Para os modelos propostos para condições de céu nublado, estes exibiram um desempenho regular. / The downward longwave radiation (L↓) component really is difficult of the net radiation the measured. Therefore, different parameterizations have been proposed to estimate it. Thus, in this study we evaluated the performance of various parameterizations for the L↓ flows estimated and their interaction with other variables measured as well as the air temperature and water vapour pressure interactions with L↓. In this study we used by wavelet transform (WT) analysis as mathematical tool for energy of local variations analysis in the studied time series here by their frequency time-space decomposition. To investigate the correlation between two series (L↓ with air temperature and between L↓ measured with estimated), we used crosswavelet transform and coherency wavelets and phase angle. The datasets used in this study are of the January 01 to December 31 of 2009, measured from micrometeorological tower (named K34) controlled by Large Scale Biosphere Atmosphere experiment in Amazonia (LBA) from Manaus city, Amazonas. The WT showed that in 36 hours period, for the entire period analyzed, a persistent, smooth and strong energy spectrum between L↓ and the air temperature, which demonstrated a synergy between these variables. It was also found that precipitation and water vapour pressure exert enough on L↓ flows influence, especially in the wet season. The crosswavelet transform and coherency wavelets and phase angle analysis at 32 to 64 hours period. Already in adjusted models were in the 16-64 hours period. With the adjustable coefficients, according to the environmental study area conditions, the models presents an improvement in the L↓ flows estimates. The cloudy skies models proposed, they exhibited a regular performance.