Thesis (D.M.A.)--University of Wisconsin--Madison, 1974. / Typescript. Vita. Description based on print version record. Includes bibliographical references (leaves 154-157).

A tablatura é um formato de notação musical alternativo para instrumentos de corda. Ela contém a posição exata (corda e casa) que necessita ser tocada para produzir um som desejado. A conversão da notação musical padrão (partitura) para uma tablatura de violão, também conhecida como transcrição, não é um processo simplificado. A razão é que cada nota da notação musical padrão pode ser tocada em diferentes posições no braço do violão. Desta forma este problema pode ser classificada como um problema de otimização combinatório. Neste trabalho, foi empregado um estudo comparativo de diferentes algoritmos: A*, algoritmos genéticos (AG), algoritmos genéticos com uso de subpopulações (AG-SP), otimização por colônia de formigas (ACO), e evolução diferencial (ED). Heurísticas baseadas nas buscas locais 2-opt e 3-opt para as abordagens AG, AG-SP e ED também foram inclusas. Os resultados experimentais com um conjunto de dados de 87 músicas monofônicas demonstraram que os algoritmos ACO, AG-SP 2-opt e AG 2-opt apresentaram os melhores resultados. Por fim, cada abordagem foi estatisticamente comparada utilizando o teste ANOVA em conjunto com o pós-teste de Tukey (Tukey post hoc), onde as análises demonstraram que há diferenças significativas entre os algoritmos avaliados. / A tablature is an alternative music notation format for string instruments. It contains the exact position (string and fret) witch needs to be played to produce the desired sound. The conversion of the musical staff notation (sheet music) to a guitar tablature, also known as transcription, is not a straightforward process. The reason is that each note on the music notation format can be played in different positions of the guitar fretboard. So this problem can be classified as a combinatorial optimization problem. In this work, we have employed a comparative study of different algorithms: A*, genetic algorithms (AG), genetic algorithms with use of subpopulations (AG-SP), ant colony optimization (ACO) and differential evolution (ED). I was also included heuristics based on local search 2-opt and 3-opt in the aproaches AG, AG-SP and ED. The experimental results with a dataset of 87 monophonic musics indicated that the approaches ACO, AG-SP 2-opt and AG 2-opt obtained the best results. Finally, each approach were statistically compared using the ANOVA with the Tukey post hoc, where the analysis indicated that there are significant differences between the evaluated algorithms.

Submitted by Viviane Lima da Cunha (viviane@biblioteca.ufpb.br) on 2015-12-07T12:54:06Z No. of bitstreams: 1 arquivototal.pdf: 1986112 bytes, checksum: 4f03fdfe4b28baad2cf9829f54857dfc (MD5) / Approved for entry into archive by Viviane Lima da Cunha (viviane@biblioteca.ufpb.br) on 2015-12-07T12:54:36Z (GMT) No. of bitstreams: 1 arquivototal.pdf: 1986112 bytes, checksum: 4f03fdfe4b28baad2cf9829f54857dfc (MD5) / Made available in DSpace on 2015-12-07T12:54:36Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 1986112 bytes, checksum: 4f03fdfe4b28baad2cf9829f54857dfc (MD5) Previous issue date: 2015-02-25 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / This paper deals with some peculiarities involving mathematical writing that generate many communication problems through different perspectives. In a time where the Internet is increasingly used and where it is common to see people on the streets carrying tablet computers, smartphones and even laptops, it is unacceptable that there is no simple and common knowledge way to insert a mathematic equation on a web search. Initially we address the interaction between people with special needs, especially those who make use of applications or devices for easy communication, then treat the virtual communication applied to the form of distance education, whether instantaneous or not instantaneous. Following deal about differences between Mathematics written in Portuguese and other languages as well as inconsistencies in mathematical notation observed in Brazil. Then treat the common text input forms used in Information and Communication Technologies to finish with a rough draft agreement that meets the needs exposed at work. / Este trabalho aborda algumas peculiaridades envolvendo a escrita matemática que geram problemas de comunicação diversos através de diferentes perspectivas. Em uma época onde a Internet é cada vez mais usada e na qual é comum ver pessoas nas ruas portando tablets, smartphones e mesmo computadores portáteis, é inaceitável que não exista uma forma simples e de conhecimento comum para se inserir uma equação matemática em um site de busca.Inicialmente abordamos a interação entre portadores de necessidades especiais, principalmente os que façam uso de aplicativos ou dispositivos para facilitar sua comunicação, em seguida tratamos da comunicação virtual aplicada à modalidade de educação à distância, quer seja instantânea ou não instantânea. Na sequência tratamos sobre divergências entre a escrita matemática na língua portuguesa e outras línguas bem como inconsistências na notação matemática observadas no Brasil. Tratamos então das formas de inserção de texto comuns usadas nas Tecnologias da Informação e Comunicação para finalizar com uma proposta rudimentar de convenção que atenda às necessidades expostas durante o trabalho.

This doctoral dissertation thesis has impact to holistically development extension of information systems. Thesis has impact to analytical models and its transformation methods. This thesis is focused on models Business Process Modeling Notation (BPMN) and Business Object Relational Modeling (BORM). Model BPMN is developed since 2000. Model BORM is developed since 1993 and it is older. The thesis general target was extension of holistically development of information systems. The main target was to bridge the gap between BPMN and BORM models. This thesis was inspired by Finite State Machine (FSM). The state of the art describes approaches to models transformation. In the analytical part the mathematical formula are used to describe transformation. This part is used to base for the implementation part. The implementation part contains transformation algorithm its description and verification on the case studies. Impact of developed transformation method is validated on the comparison with the other approaches. The targets were aimed and documented automated transformation calculus. The impact of automated BPMN and BORM models connection using transformation method. The result is method of automated transformation from BPMN model to BORM model using algorithm. The transformation method is based on the Mealy automaton.

This study reports on an investigation into the manner in which mathematical symbols influence learners’ understanding of mathematical concepts. The study was conducted in Greater Sekhukhune and Capricorn districts of Limpopo Province, South Africa. Multistage sampling (for the district), simple random sampling (for the schools), purposive sampling (for the teachers) and stratified random sampling with proportional allocation (for the learners) were used. The study was conducted in six schools randomly selected from rural, semi-urban and urban settings. A sample of 565 FET learners and 15 FET band mathematics teachers participated in the study. This study is guided by four interrelated constructivist theories: symbol sense, algebraic insight, APOS and procept theories. The research instruments for the study consist of questionnaires and interviews. A mixed method approach that was predominantly qualitative was employed. An analysis of learners’ difficulties with mathematical symbols produced three (3) clusters. The main cluster consists of 236 (41.6%) learners who indicate that they experience severe challenges with mathematical symbols compared to 108 (19.1%) learners who indicated that they could confidently handle and manipulate mathematical symbols with understanding. Six (6) categories of challenges with mathematical symbols emerged from learners’ encounters with mathematical symbols: reading mathematical text and symbols, prior knowledge, time allocated for mathematical classes and activities, lack of symbol sense and problem contexts and pedagogical approaches to mathematical symbolisation. Two sets of theme classes related to learners’ difficulties with mathematical symbols and instructional strategies emerged. Learners lack symbol sense for mathematical concepts and algebraic insight for problem solving. Learners stick to procedurally driven symbols at the expense of conceptual and contextual understanding. From a pedagogical perspective teachers indicated that they face the following difficulties when teaching: the challenge of introducing unfamiliar notation in a new topic; reading, writing and verbalising symbols; signifier and signified connections; and teaching both symbolisation and conceptual understanding simultaneously. The study recommends teachers to use strategies such as informed choice of subject matter and a pedagogical approach in which concepts are understood before they are symbolised. / Mathematics, Science and Technology Education / D. Phil. (Mathematics, Science and Technology Education)

Para permitir um efetivo gerenciamento de processos de negócio, o primeiro passo é o desenvolvimento de modelos de processo adequados aos objetivos das organizações. Tais modelos são utilizados para descreverem papéis e responsabilidades dos colaboradores nas organizações. Além disso, a modelagem de processos é de grande importância para documentar, entender e automatizar processos. As organizações, geralmente provêm documentos não estruturados e de difícil entendimento por parte dos analistas. Neste panorama, a modelagem de processos se torna demorada e de alto custo, podendo gerar modelos de processo que estão em desacordo com a realidade prevista pelas organizações. A extração de modelos ou fragmentos de processo a partir de descrições textuais pode contribuir para minimizar o esforço necessário à modelagem de processos. Neste contexto, esta dissertação propõe uma abordagem para identificar elementos de processo de negócio em texto em linguagem natural de forma semiautomática. Baseado no estudo de processamento de linguagem natural, foi definido um conjunto de regras de mapeamento para identificar elementos de processo em descrição textual Além disso, para avaliar as regras de mapeamento e viabilizar a abordagem proposta, foi desenvolvido um protótipo capaz de identificar elementos de processo em texto de forma semiautomática. Para medir o desempenho do protótipo proposto, foram utilizadas métricas de recuperação de informação, tais como precisão, revocação e medida-F. Além disso, foram aplicados dois questionários com o objetivo de verificar a aceitação perante os usuários. As avaliações apresentam resultados promissores. A análise de 70 textos, apresentou, em média, 73,61% de precisão, 70,15% de revocação e 71,82% de medida-F. Além disso, os resultados do primeiro e segundo questionários apresentaram, em média, 91,66% de aceitação dos participantes. A principal contribuição deste trabalho é propor regras de mapeamento para identificar elementos de processo em texto em linguagem natural para auxiliar e minimizar o tempo necessário à modelagem de processos realizada pelos analistas de processo. / To enable effective business process management, the first step is the design of appropriate process models to the organization’s objectives. These models are used to describe roles and responsibilities of the employees in an organizations. In addition, business process modeling is very important to report, understand and automate processes. However, the documentation existent in organizations about such processes is mostly unstructured and difficult to be understood by analysts. In this context, process modeling becomes highly time consuming and expensive, generating process models that do not comply with the reality of the organizations. The extracting of process models from textual descriptions may contribute to minimize the effort required in process modeling. In this context, this dissertation proposes a semi-automatic approach to identify process elements in natural language text. Based on the study of natural language processing, it was defined a set of mapping rules to identify process elements in text. In addition, in order to evaluate the mapping rules and to demonstrate the feasibility of the proposed approach, a prototype was developed able to identify process elements in text in a semiautomatic way To measure the performance of the proposed prototype metrics were used to retrieve information such as precision, recall, and F-measure. In addition, two surveys were developed with the purpose of verifying the acceptance of the users. The evaluations present promising results. The analyses of 70 texts presented, on average, 73.61% precision, 70.15% recall and 71.82% F-measure. In addition, the results of the first and second surveys presented on average 91.66% acceptance of the participants. The main contribution of this work is to provide mapping rules for identify process elements in natural language text to support and minimize the time required for process modeling performed by process analysts.

Orientador: Prof. Dr. Francisco de Assis Zampirolli / Dissertação (mestrado) - Universidade Federal do ABC, Programa de Pós-Graduação em Ciência da Computação, 2014. / Métodos e Processos de Engenharia de Software têm se tornado foco de pesquisas científicas, onde a qualidade, estimativa de custos e prazos são trabalhadas como boas práticas em desenvolvimento. A construção de um produto de software envolve algumas etapas, e a mais complexa saber precisamente o que construir. A precisão nesta etapa do projeto é essencial, pois se houver falha na especificação, haverá maior prejuíz ao final doprojeto do sistema de software. A principal razão para as falhas de projeto de software é o gerenciamento inadequado dos requisitos do sistema, gerando custos elevados para serem corrigidos nas fases seguintes ao levantamento de requisitos e insatisfac~ao para todos os envolvidos. Deste modo, produzir software com qualidade é uma tarefa complexa, que demanda entender, planejar e atender, provendo soluc~oes necessárias. Este trabalho tem como objetivo, apresentar uma metodologia para o desenvolvimento de especifícação de requisitos, com uma abordagem orientada ao alinhamento entre TI e Negócio, por meio de um processo de engenharia de requisitos, [integrando diagramas de Caso de Uso como Business Process Modeling Notation (BPMN). Por meio de estudos de caso aplicados a uma empresa operadora de planos privados de assistência a saúde. A metodologia se mostrou ecaz, com melhoria de 69,68% na redução dos custos no orcamento acordado. Alem disso, este trabalho de pesquisa encontra-se em funcionamento na empresa citada,otimizando recursos e atingindo melhores resultados para a organização. / Requirement Engineering Methods and Processes have become a focus point for scientic research, in which quality, cost estimates and time frames are elaborated as good practices in development. Building a software product includes several phases, and the most complex is to know exactly what to build. Precision is essential during this phase of the project, because if the specication fails, there will be greater loss at the end of the software system project. The main reason for software project failures is inept management of system requirements, generating high costs that have to be corrected in the phases following requirement survey, and creating dissatisfaction for all those involved. Thus, producing quality software is a complex task, which demands understanding, planning, and compliance to provide the necessary solutions. This paper presents a methodology for developing requirement specifications, with an approach directed towards aligning IT and Business through a requirement engineering process integrating Use Case with Business Process Modeling Notation. Through case studies presented and applied at a private health care insurance company, the methodology proved to be eective, by reducing exceeding the agreed-upon budget by 69.68%. Additionally, this study is still on-going at the abovementioned company, optimizing resources and reaching better results for the organization.

Made available in DSpace on 2015-12-10T14:22:12Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-06-17. Added 1 bitstream(s) on 2015-12-10T14:28:17Z : No. of bitstreams: 1 000853765.pdf: 25092409 bytes, checksum: ee596de96c69d0ccf11637fbb7b983f0 (MD5) / Procuramos neste trabalho discutir aspectos da notação para percussão que se conectam a uma busca pelo novo na música de Gilberto Mendes (1922), Rogério Duprat (1932 - 2006) e Willy Corrêa de Oliveira (1938), signatários do Manifesto Música Nova, em 1963. Acreditamos que, de acordo com as propostas contidas no Manifesto, nestas partituras encontraremos tentativas de uma renovação da estética musical determinadas por um pensamento vanguardístico de experimentação, podendo ser examinadas a partir da utilização de novos grafismos que representam recursos de indeterminação, improvisação, explorações timbrísticas e também incorporando elementos das linguagens poéticas, teatrais e das artes visuais. O foco da pesquisa serão as obras Concerto para Tímpanos, Caixa e Percussão (Gilberto Mendes, 1991), Antinomies I (Rogério Duprat, 1962) e Memos (Willy Corrêa de Oliveira, 1977). Ao discutir as características da notação para percussão nestas peças, identificamos o posicionamento das vanguardas dos anos sessenta em sua busca pelo novo, que também pretendemos avaliar através da tentativa destes três compositores de incorporar instrumentos de percussão típicos brasileiros em sua música de caráter experimental, no caso: o berimbau, a cuíca e o agogô, verificando o problema da escrita para estes instrumentos / This work aims to discuss aspects of percussion notation that were connected to a search for novelty in the music of the Brazilian composers Gilberto Mendes (1922), Rogério Duprat (1932 - 2006) e Willy Corrêa de Oliveira (1938), who signed the Manifesto Música Nova, in 1963. We believe that, according to the proposals contained in the Manifesto, in these scores we can find evidence of an attempt to renew musical aesthetics determined by the experimentalavant-gardethought, which can be examined on the basis of thecreation of new graphics, representing procedures of indeterminacy,improvisation, timbristic explorations and the incorporation of elements of poetic, theatrical and visual languages. The focus of the research is the Concerto para Tímpanos, Caixa e Percussão (Gilberto Mendes, 1991), Antinomies I (Rogério Duprat, 1962) and Memos (Willy Corrêa de Oliveira, 1977). In discussing the notation characteristics for percussion in these parts, we identified the positioning of the sixties avant-garde in its search for novelty that we also intend to evaluate through a trial of these three composers to incorporate typical Brazilian percussion instruments in their experimental music, in this case: the berimbau, the cuíca and the agogô, checking the notation problem for these instruments

Cette thèse met en avant l’analyse du lien entre le marché de la dette de gouvernement, le risque souverain, la stabilité du système financier et le développement des marchés de la dette locale dans les pays émergents. Afin de remplir l’espace vide dans la littérature académique sur les flux obligataires j’ai construit une nouvelle base des données sur les détentions des obligations souveraines par les investisseurs domestiques et étrangers et, par conséquence, j’ai effectué une analyse empirique des déterminants des flux entrants et sortants par type d’investisseur et pays. Ainsi la thèse projette une image complète de la globalisation des marchés de la dette souveraine. / This PhD dissertation presents the analysis of the link between the government debt market, sovereign risk, financial stability and development of the local currency debt in emerging economies. The reserch contribution to the academic literature lies in the empirical analysis of capital flows in bond markets and, for this purpose, I constructed a novel database covering domestic and foreign holdings of government bonds in developed and emerging economies. As a result, this disertation projects a complete and coherent image of the globalisation of sovereign bond markets.

La théorie du signal soutient qu’une entreprise qui limite l'étendue de sa communication sociale et environnementale limite la capacité de ses parties prenantes à évaluer son degré réel de performance en termes de développement durable, lui permettant potentiellement d’atteindre une meilleure performance financière. Cependant la transparence est une norme institutionnalisée à laquelle ces parties prenantes sont attachées. Les entreprises peuvent donc ne pas être capables de limiter l’étendue de leur communication sans être pénalisées. Cette thèse soulève donc la question de savoir si les entreprises peuvent stratégiquement limiter leur communication sociale et environnementale afin d’atteindre des niveaux de profit plus élevés, ou si la pression de conformité à la norme de transparence affaiblit ces stratégies. Cette thèse démontre économétriquement que les agences de notation sociale et environnementale ne convergent pas dans leur évaluation des entreprises, soutenant l'hypothèse que les entreprises sont capables de limiter la capacité des parties prenantes à évaluer leur degré de performance sociale et environnementale. Cette thèse démontre également que les entreprises les moins durables, et les plus réputées, sont les plus susceptibles de limiter l’étendue de leur communication, que les entreprises les plus durables accèdent à de plus hauts retours financiers sur le court et long terme lorsqu'elles adoptent une communication exhaustive, et que les entreprises les moins durables au contraire sont plus rentables sur le court terme quand elles limitent l’étendue de leur communication. Cette thèse montre donc que, conformément à la théorie du signal, les entreprises peuvent à court terme stratégiquement ajuster l’étendue de leur communication sociale et environnementale afin d’atteindre de plus hauts retours financiers. Cependant, sur le long terme, la pression de conformité à la norme de transparence est trop élevée, et limite les bénéfices de telles stratégies. / The signaling perspective argues that when a firm limits the extent of its sustainability disclosure, it prevents stakeholders from evaluating its achieved degree of sustainability performance, and may thus reach higher financial returns. However, transparency is an institutionalized norm that stakeholders value, and firms may not be able to limit their disclosure without being penalized. This thesis therefore raises the question of whether firms can strategically limit their sustainability disclosure to reach higher profits, or if pressure for conformity to the norm of transparency exists and weakens such strategies. Using econometrical methods, this thesis empirically shows that sustainability raters do not converge in their assessment of firms’ sustainability performance, supporting the assumption that firmsmay prevent stakeholders from evaluating their actual degree of sustainability. It also shows that less sustainable and more reputed firms are more likely to limit their sustainability disclosure, that highly sustainable firms encounter higher short and long term financial returns when they adopt an extensive disclosure, and that less sustainable firms, on the contrary are more profitable in the short term when theylimit their disclosure. This thesis therefore shows that in line with the signaling perspective, firms may strategically adjust the extent on their disclosure to reach higher returns in the short term. However, in the long term, normative pressure for transparency is too high and weakens the benefits of such strategies.