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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
601

Evaluating performance of a React Native feature set

Johansson, Erik, Söderberg, Jesper January 2018 (has links)
React Native has quickly become one of the most popular cross-platform frameworks for developing Android and iOS applications since it was first released by Facebook in 2015. In this study a proof of concept application is  developed and a set of features are evaluated with regard to performance efficiency. Results of measurements show that while React Native does perform worse than it's Android counterpart, it performs sufficiently well for building most applications with but can be more problematic for applications running heavier client-side logic.
602

Negotiating sustainability : Exploring translations of the idea to account for externalities in business

Kaminsky, Anna, Deichl, Laura January 2018 (has links)
More and more actors in the transnational arena develop approaches to translate the vague phenomenon sustainability into more economic te rms in order to make it easier manageable for business. Many of these approaches are based on the traditional economic concept of externalities. But although the basic idea is the same in a ll of them, it is materialized in different ways. This resea rch explores differences in the translations of eight organizations, and the factors that influenced these translation processes. In semi - structured interview s different perspectives and experienc es were explored, and further backed up by documentary research. Our findings include that the translations are both dependent on the respective organizational context as well as the social context and institutional embeddedness of these organizations. Fur ther, we suggest that herein it can be distinguished between two types of organizations - smaller disruptive and larger established organizations. Moreover, we argue that notwithstanding the differences in their translations, the organizations benefit each other by carrying the idea to account for externalities further and inducing macro level change by taking certain roles in the transnational governance system.
603

Crianças falam conforme o modelo mesmo quando consequências seguem falas divergentes

Souza, Rodrigo Dal Ben de 17 February 2016 (has links)
Submitted by Livia Mello (liviacmello@yahoo.com.br) on 2016-09-21T12:29:01Z No. of bitstreams: 1 DissRDBS.pdf: 2067197 bytes, checksum: 5f66defaac763207d5a885501ea67a20 (MD5) / Approved for entry into archive by Marina Freitas (marinapf@ufscar.br) on 2016-09-21T18:33:09Z (GMT) No. of bitstreams: 1 DissRDBS.pdf: 2067197 bytes, checksum: 5f66defaac763207d5a885501ea67a20 (MD5) / Approved for entry into archive by Marina Freitas (marinapf@ufscar.br) on 2016-09-21T18:33:18Z (GMT) No. of bitstreams: 1 DissRDBS.pdf: 2067197 bytes, checksum: 5f66defaac763207d5a885501ea67a20 (MD5) / Made available in DSpace on 2016-09-21T18:33:25Z (GMT). No. of bitstreams: 1 DissRDBS.pdf: 2067197 bytes, checksum: 5f66defaac763207d5a885501ea67a20 (MD5) Previous issue date: 2016-02-17 / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / The development and maintenance of vocal verbal repertories that follow structural regularities are processes in need for investigation under the selection by consequences paradigm. The present study investigates the effects of presenting vocal models in passive voice and explicit consequences, of high and medium preference, contingent to descriptions in active voice on the verbal voice of descriptions of Brazilian young children, 4 years old on average. Three experiments were performed. In the first, four children participated. The experimental procedure was composed by five conditions. In the first one, 10 drawings, with two animals interacting, were presented and its descriptions asked. In the second, experimenter and participant alternated in describing 20 drawings, the experimenter always described in passive voice. The third condition was similar to the second, except that descriptions in active voice (divergent) were followed by preferred consequences. The fourth condition was similar to the first one. The fifth condition was similar to the fourth, but it was conducted by an unknown experimenter. All participants described in passive voice after being exposed to the model and continued doing so even when preferred consequences followed descriptions in active voice. But the experimental design may have created a sequence effect between the second and the third conditions. Such limitation was followed in a second experiment. Other four young children participated, 4 years old on average. The procedure was similar to the first experiment, but, the model in passive voice during the second condition was replaced by the presentation of preferred explicit consequences contingent to active voice descriptions. All participants described in passive voice after being exposed to the model, except one. In order to refine the investigation, a third experiment was conducted. Other four young children mean of 4 years old, with different degrees of model following participated. The procedure was identical to the second experiment, but a pre-experimental condition was added in order to measure the participants’ sensibility to the model. Nevertheless, all participants described in passive voice after being exposed to the model in the third experimental condition. The findings point to the importance of investigations on non-arranged contingencies of reinforcement in the development and maintenance of verbal vocal repertoires that follow structural regularities. / O desenvolvimento e manutenção de repertórios verbais vocais que seguem regularidades estruturais são processos pouco investigados sob o paradigma da seleção pelas consequências. O presente estudo investiga os efeitos da apresentação de modelos vocais em voz passiva e de consequências explícitas, de alta e média preferência, contingentes às descrições em voz ativa, sobre a voz verbal das descrições de crianças pequenas, idade média de 4 anos, brasileiras. Três experimentos foram realizados. No primeiro, participaram quatro crianças. O procedimento experimental foi composto por cinco condições. Na primeira condição, 10 desenhos, com dois animais interagindo, foram apresentados e suas descrições solicitadas. Na segunda, experimentador e participante descreveram 20 desenhos alternadamente, sendo as descrições do experimentador sempre em voz passiva. A terceira condição foi semelhante à anterior, porém descrições em voz ativa (divergentes) foram seguidas de consequências preferidas. A quarta condição foi semelhante a primeira. A quinta foi semelhante à quarta, porém foi conduzida por um experimentador desconhecido. Todos os participantes passaram a descrever as figuras em voz passiva após a apresentação do modelo e continuaram a fazê-lo mesmo com apresentação de atividades preferidas contingentes às descrições em voz ativa. Porém, o delineamento empregado pode ter gerado um efeito de sequência entre a segunda e terceira condição. Tal limitação foi investigada no Experimento 2. Participaram outras quatro crianças pequenas, com idades de 4 anos em média. O procedimento foi semelhante ao do primeiro experimento, porém, o modelo em voz passiva durante a segunda condição experimental foi substituído pela apresentação de consequências explícitas preferidas contingentes a descrições em voz ativa. Todos os participantes descreveram os desenhos em voz passiva após serem expostos ao modelo, exceto por um. Buscando refinar a investigação, um terceiro experimento foi realizado. Participaram outras quatro crianças pequenas, média de 4 anos de idade, com diferentes graus de seguimento do modelo. O procedimento foi idêntico ao do segundo experimento, porém, uma tarefa pré-experimental foi adicionada, ela mediu a sensibilidade ao modelo. Não obstante, todos os participantes passaram a falar em voz passiva após serem expostos ao modelo na terceira condição experimental. Os achados apontam para a importância de investigações sobre contingências de reforçamento não arranjadas no desenvolvimento e manutenção de repertórios verbais vocais que seguem regularidades estruturais.
604

Intent- driven Correspondence and Registration of Shapes

Krishnamurthy, Hariharan January 2017 (has links) (PDF)
Registration means to bring two or more shapes into a suitable relative configuration (position and orientation). In its major applications like 3D scan alignment, the aim is to coalesce data and regions originating from the same physical region have similar local form. So, the correspondence between shapes is discoverable from the shapes themselves, and the registration makes corresponding regions coincide. This work concerns the registration of shapes to satisfy a purpose or intent, not involving data integration. Regions relevant to the purpose are marked as patches correspondingly on two input 3D meshes of objects. Then, a method of registration is used to obtain the suitable configuration. Three methods of registration are explored in the present work. The first method of registration is to align intrinsic co-ordinate frames defined on the shapes. This is used in a scenario of comparison of shapes with dissimilar local form, which are to be aligned as an expert requires, as in the comparison of dental casts and apple bitemarks in forensics. Regions recognized in dentistry are marked as patches on the cast and bitemark shapes by a dentist. From these, an intrinsic frame is defined and aligned to bring the shapes close. The alignment is used to calculate distortion of a deteriorated bitemark. Another application of frame alignment is the analysis of shape variation of contours in a population for wearable product design. A frame based on anthropometric landmarks is used to construct the contours of the product's interface with the body-part, analyze its spread through a 2D grid-statistics method, and construct the interface shape. The frame helps assess the fit of the constructed shape on an individual. The method is demonstrated with respirator masks. Frame-based alignment is seen to give unsatisfactory results with head shapes for motorcycle-helmet interior design, as it does not adequately describe the helmet-head interaction. This inspires the second method of registration. The second method of registration is the biased minimization of distance between corresponding patches on the shapes, by weighting patches to indicate their importance in the registration. The method is used to assess the small deviation of precisely-known quantities in shapes, such as in manufactured part inspection. Here, the patches marked are grouped, and the part and model shapes registered at patches in the combinations of groups, by giving a binary weighting of 1 to these patches and 0 to others. The deviation of every patch across the registrations at multiple datum systems is tabulated and analyzed to infer errors. The method is exemplified with welded bars and bent-pipes. In the analysis of head-shape variation in a population to create headforms for wearable products, the deviations are large and not precisely known. So, the head shapes are registered at patches on regions pertinent to the product's functioning, with a relatively higher weight for a reference patch. A 3D grid-statistics method is used to analyze the shapes' spread and arrive at the headform shapes. The selection of head form for a given head shape is also treated. The method is demonstrated with motorcycle helmets and respirator masks. Biased distance-minimization is applied to obtain the mechanical assembly of part meshes. Different schemes of marking patches are tested as cases. The method leads to both intended and unintended final configurations, prompting for a better objective in registration. Thus, the third method of registration, that of normals is proposed; this happens in a transformed space. By analyzing the nature of assembly in CAD systems, the face-normals of the mesh are used to obtain the intended orientation of parts. The normals of corresponding patches are registered using three methods of registration, namely on a unit-sphere, of unit-normals, and spherical co-ordinates of normals. In each method, the optimal transformation is suitably converted to be applied on the actual part shape in 3D. Unit-normal alignment gives sensible results, while the other two lead to skewed final orientations. This is attributed to the nature of the space of registration. The methods are applied to examples involving different assembly relations, such as alignment of holes. On the whole, it is shown that correspondence embodies the knowledge of importance of regions on shapes for a purpose. The registration method should lead to an apt shape placement, which need not always mean coincidence. In essence, correspondence denotes 'what' regions are of relevance, and registration, 'how' to get the relative configuration satisfying a purpose or intent.
605

Implica??es discursivas das express?es idiom?ticas sob a ?tica da an?lise construcional do discurso

Silva, Vanilton Pereira da 01 December 2016 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-03-28T18:59:13Z No. of bitstreams: 1 VaniltonPereiraDaSilva_TESE.pdf: 1513062 bytes, checksum: 12094486ec871ffa836a20320f965759 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-03-28T21:27:53Z (GMT) No. of bitstreams: 1 VaniltonPereiraDaSilva_TESE.pdf: 1513062 bytes, checksum: 12094486ec871ffa836a20320f965759 (MD5) / Made available in DSpace on 2017-03-28T21:27:53Z (GMT). No. of bitstreams: 1 VaniltonPereiraDaSilva_TESE.pdf: 1513062 bytes, checksum: 12094486ec871ffa836a20320f965759 (MD5) Previous issue date: 2016-12-01 / Nesta tese, investigo o papel das express?es idiom?ticas no processo de constru??o de sentido e suas implica??es no discurso. Para isso, parto do pressuposto de que a aplica??o do Modelo de Gram?tica de Constru??o Corporificada na an?lise de idiomatismos, em contextos espec?ficos de uso, fornece subs?dios ? compreens?o do fen?meno estudado, pois evidencia: como frames, esquemas e proje??es metaf?ricas se integram na produ??o de especifica??es sem?nticas (semspec); como essas semspec s?o resolvidas no ?mbito dos contextos situacional e discursivo; e de que maneira as infer?ncias s?o produzidas durante o processamento discursivo. Nessa empreitada, recorro ?s no??es de categoriza??o (LAKOFF, 1987; FELDMAN, 2006), constru??es (BERGEN, CHANG, 2003, 2005), frames (LAKOFF, 2004; DUQUE, 2015), framing (LAKOFF, 2004), esquemas (LAKOFF, 1987; JOHNSON, 1987; DUQUE, 2015), met?foras (LAKOFF, JOHNSON, 1980, 1999; LAKOFF, 2008), contexto (VAN DIJK, 2012), corporalidade (LAKOFF, JOHNSON, 1999; BERGEN, 2005, 2010), affordances (GIBSON, 1977, 1979) e idiomaticidade (FILLMORE, KAY, O?CONNOR, 1988; SILVA, 2012). A hip?tese defendida ? a de que as express?es idiom?ticas ajustam um conjunto de mapeamentos metaf?ricos com base no framing, processo de modelagem de frames, por meio do qual o discurso ? estruturado. O corpus deste trabalho ? constitu?do pelas express?es idiom?ticas ?abandonar o barco?, ?chutar o balde?, ?agarrar com unhas e dentes? e ?filho de peixe peixinho ?? distribu?das em 15 textos retirados da internet por meio do mecanismo de busca Google. A metodologia utilizada ? de cunho qualitativo, uma vez que permite a realiza??o de uma an?lise emp?rica dos dados, sem a preocupa??o de recorrer a informa??es quantitativas, e se alicer?a no Modelo de An?lise Construcional, que apresenta um formalismo de an?lise lingu?stica feito especificamente para compor uma modelagem de constru??o de sentido baseada em simula??o. As informa??es obtidas na an?lise indicam que as express?es idiom?ticas n?o s? associam significados convencionalizados e esquem?ticos, mas tamb?m integram elementos como a??es, infer?ncias e abstra??es, influenciando a organiza??o discursiva e os processos de constru??o de sentido dos textos. / In this thesis, we investigate the role of idiomatic expressions in the process of meaning construction and its implications for speech. To that end, we assume that the application of the Grammar Model for Embodied Construction in the analysis of idiomatisms, in specific contexts of use, provides subsidies for the understanding of the studied phenomenon, since it highlights the way in which frames, schemes and metaphorical projections are integrated in the production semantic specifications (semspec); the way in which these ?semspec? are addressed in the scope of the situational and discursive contexts; and the way in which the inferences are produced throughout the discursive processing. In this work, we rely on the notions of categorization (LAKOFF, 1987; FELDMAN, 2006), constructions (BERGEN, CHANG, 2003, 2005), frames (LAKOFF, 2004; DUQUE, 2015), framing (LAKOFF, 2004), schemes (LAKOFF, 1987; JOHNSON, 1987; DUQUE, 2015), metaphors (LAKOFF, JOHNSON, 1980, 1999; LAKOFF, 2008), context (VAN DIJK, 2012), corporeality (LAKOFF, JOHNSON, 1999; BERGEN, 2005, 2010), affordances (GIBSON, 1977, 1979) and idiomaticity (FILLMORE, KAY, O?CONNOR, 1988; SILVA, 2012). The advocated hypothesis claims that idiomatic expressions organize a set of metaphorical mappings based on framing, i.e., the framework modeling process, through which the speech is structured. The corpus of this work is made up of the Portuguese idiomatic expressions ?abandonar o barco?, ?chutar o balde?, ?agarrar com unhas e dentes? and ?filho de peixe peixinho ??, which are distributed in 15 texts extracted from the internet by means of the Google search engine. The employed methodology has a qualitative nature, as it enables the accomplishment of an empirical analysis of data, without the worry about relying on quantitative information, and is underpinned by the Model of Constructional Analysis, which has a formalism of linguistic analysis specifically made to compose a simulation-based modeling of meaning construction. The information obtained in the analysis points out that idiomatic expressions not only associate conventionalized and schematic meanings, but also integrate elements such as actions, inferences and abstractions, thereby influencing the discursive organization and the processes of meaning construction of texts.
606

Verificação de pilares de aço à flexão composta considerando comprimentos de flambagem, forças horizontais fictícias e análise avançada. / Design of steel columns to bending and compression using effective length, notional loads and advanced analysis approaches.

Henrique Campelo Gomes 01 November 2005 (has links)
Este trabalho trata das principais filosofias de verificação de pilares à flexão composta em pórticos de aço assim como das normas que as recomendam. São discutidas as metodologias baseadas em comprimentos efetivos de flambagem, forças horizontais fictícias e análise avançada. É proposta uma metodologia de análise avançada utilizando elementos finitos de casca, que incorpora os efeitos das tensões residuais, imperfeições geométricas e não-linearidades geométricas e do material. São apresentados, ao final do trabalho, exemplos para comparação das diversas metodologias discutidas ao longo do texto. / This work discusses the main philosophies used to verify columns subjected to bending and compression in steel frames as well as the standards which recommend them. The effective length and notional loads approaches and the advanced analysis concept are discussed too. It is proposed a methodology of advanced analysis based on shell finite elements that accounts for the effects of residual stresses, geometric imperfections and geometric and material non-linearity. It is presented, at the end of the text, samples for the comparison of the several methodologies discussed throughout this work.
607

Análise de problemas elásticos não lineares geométricos empregando o método dos elementos finitos posicional / Elastic nonlinear geometric analysis with positional finite element method

Daniel Nelson Maciel 24 March 2008 (has links)
Neste trabalho problemas não lineares geométricos envolvendo pórticos planos e sólidos tridimensionais são analisados através do método dos elementos finitos com formulação posicional. A formulação posicional utiliza como incógnitas as posições dos nós ao invés de deslocamentos. O referencial adotado da formulação é o lagrangiano total. Também se utiliza o algoritmo de Newton-Raphson para solução iterativa do problema não linear. Para problemas envolvendo dinâmica, a matriz de massa é consistente e o integrador temporal é o algoritmo de Newmark. Para o pórtico plano, a cinemática adotada é a de Reissner, onde a seção plana do pórtico não necessariamente permanece perpendicular ao seu eixo central após deformação. Com relação à formulação de sólido tridimensional, é adotada aproximação cúbica de variáveis com elementos finitos tretraédricos de 20 nós. É apresentada também a análise de impacto em anteparo rígido para estruturas tridimensionais utilizando o integrador de Newmark modificado para se garantir a estabilidade do problema. A formulação aqui proposta é validade em comparação com exemplos clássicos da literatura especializada. / Non linear geometric analysis for 2D frames and 3D solids are analyzed in this work by employing the finite element method with positional description. The present formulation does not use the concept of displacement; it considers positions as the real variables of the problem. In addition, the formulation is developed through total lagrangian description. Besides, the Newton-Raphson method is applied for solving the iterative linear system. For dynamic problems, the mass matrix is consistent and it is applied the Newmark algorithm for time integration. For 2D frame analysis, Reissner kinematics is adopted, that is, initial plane cross-sections remain plane after deformation and angles are independent of the slope of central line. In respect to 3D solids, a cubic approximation for the variables is employed through tetraedric finite elements with 20 nodes. Moreover, impact analysis against rigid wall is performed for 3D solids by applying the modified Newmark procedure in order to guarantee a stabilized response. In order to validate the herein proposed formulation, numerical examples are compared to those in the specialized literature.
608

From the film frames to the minor cinema: apparatus, montage and movements in Solon Ribeiroâs work / Dos fotogramas ao cinema menor: dispositivos, montagem e movimentos na obra de Solon Ribeiro.

AnnÃdia Leite Brito 23 March 2015 (has links)
CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior / Solon Ribeiroâs work with the frames of classical cinema inherited from his father articulates apparatus through another montage so that these images survive through constant variations made by his gestures in a minor cinema. The solo exhibitions O golpe do corte (2005), Quando o cinema se desfaz em fotograma (2009) and O cinema à meu playground (2013) are investigated following the development of his work over the course of time. The methodology used takes the body of workâs singularities into account to promote the encounter with the theories of important authors, turning them into intercessors in the construction of the discussion. Furthermore, a documental research was accomplished, which included conversations with the artist â Appendix A in the thesis â and the reunion and analysis of archive material regarding his exhibitions. Starting with apparatus theory on film (BAUDRY), the research moves to the concept of apparatus on Agambenâs and Flusserâs philosophy and dispositif on Deleuzeâs philosophy, expanding the understanding of cinema to the experiences on an expanded field (PARENTE). The elements of each work are examined to point out the processes and singularities of their configurations. The processual characteristics of the artistâs work is made evident by the repeated use of given frames and by the modification of some apparatuses already shown. The transformation from the classical montage (LEONE; MOURÃO) to the ones Ribeiro produces on space turns him closer to Aby Warburgâs philosophical and historic practice in his Atlas Mnemosyne (1924-1929). The heuristic montage (DIDI-HUBERMAN) found on framesâ time collision is related to Deleuzeâs time-image, since both comprise the development of thought through images, emphasizing the difference between the fatherâs affective and collector practice and the artistâs acts of dislocation which led to framesâ survival (DIDI-HUBERMAN). The changes on each workâs time and space point out to the improbable movements (DUBOIS) placed between the framesâ apparent fluidity and immobility (BELLOUR). Ribeiroâs cinema becoming-photography (FATORELLI) leads to reflection on cinema itself and to the making of a minor cinema (DELEUZE; GUATTARI) that asserts the possibility of other cinema created from the elements of hegemonic cinemaâs form (PARENTE). / O trabalho de Solon Ribeiro com os fotogramas do cinema clÃssico herdados de seu pai articula dispositivos atravÃs de outra montagem para que essas imagens sobrevivam por meio da constante variaÃÃo operada por seus gestos em um cinema menor. As exposiÃÃes individuais O golpe do corte (2005), Quando o cinema se desfaz em fotograma (2009) e O cinema à meu playground (2013) sÃo investigadas acompanhando os desdobramentos do trabalho no tempo. A metodologia empregada toma as singularidades do corpo da obra em questÃo ao tensionÃ-las com a teoria de importantes autores, tornando-os intercessores na tessitura da discussÃo. Ademais, foi realizada pesquisa documental, que inclui conversas com o artista â ApÃndice A da dissertaÃÃo â e reuniÃo e anÃlise de material de arquivo referente a suas exposiÃÃes. A partir da teoria do dispositivo no cinema (BAUDRY), a pesquisa passa aos conceitos de dispositivo na filosofia de Agamben e de Deleuze e de aparelho em Flusser, alargando a noÃÃo de cinema para as experiÃncias em campo expandido (PARENTE). Os elementos pertencentes a cada obra sÃo examinados e tÃm os processos e as singularidades de suas configuraÃÃes apontados. A caracterÃstica processual inerente ao trabalho do artista à evidenciada pela reiteraÃÃo no uso de determinados frames e pelo retorno ou modificaÃÃo de certos dispositivos jà apresentados. As transformaÃÃes da montagem cinematogrÃfica clÃssica (LEONE; MOURÃO) para as montagens operadas por Ribeiro no espaÃo o aproximam da prÃtica filosÃfico-histÃrica de Aby Warburg em seu Atlas Mnemosyne (1924-1929). A montagem heurÃstica (DIDI-HUBERMAN) no choque entre os tempos dos fotogramas à relacionada com a imagem-tempo deleuzeana, posto que ambas compreendem uma experimentaÃÃo que envolve a articulaÃÃo de um pensamento em imagens, ressaltando a diferenÃa entre a prÃtica afetivo-colecionista do pai e o deslocamento ensejador da sobrevivÃncias (DIDI-HUBERMAN) dos frames pelo artista. As modificaÃÃes no tempo e no espaÃo de cada obra apontam para movimentos improvÃveis (DUBOIS) que se colocam no interstÃcio entre a aparÃncia de fluidez e de imobilidade dos fotogramas (BELLOUR). O devir fotogrÃfico (FATORELLI) do cinema de Ribeiro leva à reflexÃo sobre a linguagem cinematogrÃfica, conduzindo-a a um cinema menor (DELEUZE; GUATTARI) ao afirmar a possibilidade da construÃÃo de um outro cinema engendrado a partir dos elementos da forma cinema (PARENTE) hegemÃnica.
609

Modelagem linguístico-computacional das relações entre construções e frames no Constructicon da FrameNet Brasil

Lage, Ludmila Meireles 31 January 2018 (has links)
Submitted by Geandra Rodrigues (geandrar@gmail.com) on 2018-04-26T14:14:21Z No. of bitstreams: 1 ludmilameireleslage.pdf: 2134733 bytes, checksum: 0d43cf8390146899f66347051eb6b7fc (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2018-05-09T12:15:11Z (GMT) No. of bitstreams: 1 ludmilameireleslage.pdf: 2134733 bytes, checksum: 0d43cf8390146899f66347051eb6b7fc (MD5) / Made available in DSpace on 2018-05-09T12:15:11Z (GMT). No. of bitstreams: 1 ludmilameireleslage.pdf: 2134733 bytes, checksum: 0d43cf8390146899f66347051eb6b7fc (MD5) Previous issue date: 2018-01-31 / FAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais / Esta tese apresenta as discussões teórico-metodológicas que embasaram a modelagem linguístico-computacional das relações entre construções e entre construções e frames no Constructicon da FrameNet Brasil. Após a fase de implementação de tal recurso, desenvolvido a fim de explicar os fenômenosnão capturados pelas análises lexicográficas proporcionadas pela FrameNet, foi necessário transformá-lo em uma rede. Uma vez que construções são concebidas como construtos cognitivos que participam em redes relacionais, foi modelada a relação de Herança (KAY & FILLMORE, 1999) para estruturar a rede de construções. Outro importante avanço implementado foi a relação de Evocação, que captura os casos em que uma construção evoca um frame, conectando-os de modo a evidenciar a relação entre eles. As construções e os frames, dois dos marcos teóricos mais importantes da Linguística Cognitiva, têm sido, de fato, foco de estudos quanto às relações que estabelecem entre si. Ademais, dado que o Constructicon foi desenvolvido em paralelo com a FrameNet, teria sido um desperdício não conectar ambos os bancos de dados. Contudo, alguns aspectos apresentados pelas construções sobrepujam as generalizações capturadas pela herança e pela importação semântica representada em termos de frames. Além disso, visto que o Constructicon da FrameNet Brasil se volta sobretudo a tarefas em tecnologia da linguagem, era preciso que o recurso proporcionasse informações que fossem legíveis não apenas a leitores humanos, mas também a máquinas. Dessa forma, através da modelagem das construções Aspectual Inceptiva (SIGILIANO, 2012, 2013) e Dativo com Infinitivo (TORRENT, 2009; LAVIOLA 2015), observou-se a necessidade de se adicionar ao Editor de Restrições mecanismos para dar conta de tais aspectos. De tal modo, doravante é possível registrar as unidades lexicais (ULs) que podem preencher um elemento da construção. Essa propriedade pode ser implementada em três níveis diferentes: caso apenas ULs específicas possam preencher um determinado slot; caso todas as ULs que evocam um frame possam preencher o dado slot; ou caso uma família de frames seja aceita em um slot. Assim sendo, através da implementação das relações descritas, este trabalho contribui para o progresso do recurso construcional, bem como para exibir os mecanismos necessários para diversas aplicações computacionais, ao mesmo tempo em que operacionaliza, no domínio computacional, a interdependência entre frames e construções há tanto tempo pontuada pelos estudos descritivos em Linguística Cognitiva. / This work presents the theoretical-methodological discussions that support the linguistic-computational modeling of the relations between constructions and between constructions and frames in the FrameNet Brasil Constructicon. After implementing the resource, developed to explain the phenomena not captured by the lexicographic analyzes provided by FrameNet, it was necessary to turn it into a network. Since constructions are conceived as cognitive constructs that participate in relational networks, the Inheritance relation (KAY & FILLMORE, 1999) was modeled for structuring a constructions network. Another important advance implemented was the Evokes relation, which captures the cases in which a construction evokes a frame, connecting them to put in evidence the relation between them. Constructions and frames, two of the most important theoretical frameworks of Cognitive Linguistics, have been indeed the focus of studies on the relations they establish with each other. In addition, since the Constructicon was developed in parallel with FrameNet, it would have been a waste to not connect both databases. However, some aspects of constructions transcend the generalizations captured by inheritance and by the semantic import represented in terms of frames. Moreover, since FrameNet Brasil Constructicon focuses primarily on language technology tasks, the resource needed to provide information that would be readable not only to human readers but also to machines. Thus, through the modeling of Inceptive Aspectual (SIGILIANO, 2012, 2013) and Dative with Infinitive (TORRENT, 2009; LAVIOLA 2015) constructions, it was observed the need to add some mechanisms to the Constraint Editor to account for these aspects. Therefore, henceforth it is possible to register the lexical units (LUs) that can fill a construction element. This property can be implemented in three different levels: if only specific LUs can fill a given slot; if all LUs evoking a frame can fill a given slot; or if a frame family is accepted in a slot. Hence, through the implementation of the relations described, this work contributes to the progress of the constructional resource, as well as to display the mechanism applicable to several computational applications, at the same time it operates, in the computational domain, the interdependence between frames and constructions that have been long punctuated by the descriptive studies in Cognitive Linguistics.
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Frames tecnológicos e avaliação de sistemas de informação: uma perspectiva interpretativista / Technological frames and information systems evaluation: an interpretative perspective

Clarissa Carneiro Mussi 03 July 2008 (has links)
Avaliação de sistemas de informação e frames tecnológicos (estruturas cognitivas compartilhadas em relação à tecnologia) constituem-se as temáticas focais desta pesquisa cujo objetivo foi compreender como se estabelece a relação entre processos de avaliação formais e informais de um sistema de informação e frames tecnológicos. A estrutura de avaliação conteúdo-contexto-processo e o arcabouço teórico de frames tecnológicos, especialmente seus elementos constitutivos - conhecimentos, pressupostos e expectativas - foram associados visando a esta compreensão. A pesquisa foi realizada em uma instituição de ensino superior e o objeto de estudo tratou-se de um sistema de informação acadêmico (Peoplesoft), implementado e em uso nesta instituição. Especificamente analisaram-se: avaliações formais e informais do sistema acadêmico em relação à estrutura conteúdo-contexto-processo; a natureza e extensão de diferenças em frames tecnológicos de grupos sociais distintos; e como frames tecnológicos moldam e são moldados por avaliações formais e informais de um sistema de informação. Com pressupostos epistemológicos sustentados pela perspectiva interpretativista, metodologicamente o estudo caracterizou-se por uma abordagem qualitativa do tipo estudo de caso único e incorporado (grupos sociais como sub-unidades de análise). Entrevistas em profundidade, observação participante, revisão documental e artefato físico constituíram-se as fontes de dados empíricos. Adotaram-se os fundamentos do método hermenêutico-dialético para a análise e interpretação dos dados coletados. O estudo propiciou identificar que: frames tecnológicos e avaliações do sistema de informação, sejam formais ou informais, influenciam-se reciprocamente; características pessoais, contextuais e tecnológicas integram-se criando, reforçando e modificando frames tecnológicos; diferentes avaliações sobre o sistema acadêmico são socialmente construídas pelos indivíduos inseridos em grupos sociais e fortemente afetadas pelo que acreditam, conhecem e esperam deste sistema; frames tecnológicos manifestam-se tanto no conteúdo da avaliação quanto no processo avaliativo, influenciando a identificação de fatores do conteúdo assim como o teor do julgamento destes fatores, o modo pelo qual se avalia e o próprio contexto da avaliação; em contrapartida, processos de avaliações informais, decorrentes da interação social, afetam frames tecnológicos; nestes processos, conhecimentos prévios são validados, ampliados ou refutados, pressupostos e expectativas criados e recriados; igualmente, o modo como avaliações formais são configuradas desencadeia conhecimentos, pressupostos e expectativas sobre a tecnologia. / Information systems evaluation and technological frames (shared cognitive structures that relate to technology) are the main themes of this research. Its general goal has been to establish how the relationship between formal and informal processes of information systems evaluation and technological frames operates. The structure of evaluation (content-context-process) and the theoretical stance of the technological frames, especially in respect to its constitutive elements, have been analyzed and linked to each other. The research has been conducted in a graduate institution and its object of analysis, a software called \"Peoplesoft\", which was already implemented and that is in use nowadays. Specific analysis deal with the following topics: a) both formal and informal evaluations of the information system in relation to the \"content-context-process\" structure; the nature and extension of the differences that sustain technological frames for different groups as well how these technological frames are molded and formed by formal and informal assessment (evaluations) of such system. Epistemological suppositions were held by an interpretative perspective while, methodologically, this study is characterized by a qualitative perspective of a unique case in which social groups act as sub-units of analysis. In-depth interviews, paticipative observations, documental review and physical artifacts have been the sources of empirical data. Data analysis and interpretation has been backed up by a dialectic-hermeneutic method. The results point to reciprocal influences between technological frames and information systems evaluations (both formal and informal ones). Personal and contextual characteristics as well as technological ones are integrated creating, reinforcing and modifying technological frames. Thus, different evaluations of the academic information system are socially constructed by the individuals and become greatly affected by their prior knowledge of the system, their assumptions and expectations towards it. Technological frames manifest themselves in relation to both the content and processes of evaluation, thus influencing the identification of generating factors of such judgments, as well as their substance; frames also influence the manners how evaluations are made and the context where they take place. On the other hand, informal evaluation processes, the product of social interaction, affect technological frames. In these processes, previous knowledge is validated, amplified or refuted; assumptions and expectations are created and/or recreated. At the same time, the ways in which formal evaluations are proposed trigger certain knowledges, expectations and assumptions about technology.

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