Engenharias

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Browsing Engenharias by Author "Borges, Fernando Cezar Reis"

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    Detecção de Covid-19 em imagens radiológicas torácicas através da rede neural convolucional (RNC)
    (Universidade Católica do Salvador, 2020-12-11) Santana, Saulo de Andrade; Wyzykowski, André Brasil Vieira; http://lattes.cnpq.br/; Jesus, Arnaldo Bispo de; http://lattes.cnpq.br/; Borges, Fernando Cezar Reis; http://lattes.cnpq.br/
    The new Covid-19 pandemic, the new coronavirus (SARS-CoV-2), has caused many problems in several areas of society. Among these problems, the high number of tests carried out, and the lack of tests, especially in small cities, stands out efficiently. Consid- ering this insufficient resource in the identification of Covid-19, the objective of this work was to propose a solution, in an experimental study, to enable the detection of the new virus using the images of chest radiological medical examinations, which have facilitators in their realization, such as cost and availability, with the help of an Artificial Intelligence, more specifically the Convolutional Neural Network (RNC), which they are usually used to analyze images. The work consisted of its own architecture and a set of 16,500 im- ages separated into 3 classes (Normal, Covid-19 and Pneumonia), and the results of the RNC were analyzed and took place on the accuracy of the network algorithms in image recognition disorders, which is higher than 80 %. The technique proved to be promising in meeting this demand, in an experimental context. Therefore, it can be indicated as a complementary instrument in medical diagnosis in the health system for its efficacy and effectiveness, in addition to the benefits and ease for its implementation, however more tests are carried out, with a set of wide variables.
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    Estudo de caso sobre o uso da notação BPMN no mapeamento do processo de baixa de atividades complementares na UCSAL
    (Universidade Católica do Salvador, 2020-06-29) Oliveira, Jeferson Sunderlande de; Borges, Fernando Cezar Reis; http://lattes.cnpq.br/; Wyzykowski, André Brasil Vieira; http://lattes.cnpq.br/; Melo, Osvaldo Requião; http://lattes.cnpq.br/
    To demonstrate the benefits that the use of BPM can provide for a higher education institution, a case study was carried out to assess whether the BPMN notation is applicableand whether it has benefits in mapping the process of writing off complementary activities in Catholic University of Salvador (UCSAL) and, with this, point out the positive impact of the Business Process Management (BPM) approach. Therefore, it was necessary to map the initial state of the process of writing off complementary activities - AS IS at the Catholic University of Salvador, to identify improvements to be implemented, to model the new TO BE procedure, and to create manuals to assist and standardize the modeled actions. Thus, a research was carried out with a qualitative approach to the problem, explanatory as to the purposes and with the procedure of the case study. Therefore, it was found that the reduction in the number of activities in the process of writing off complementary activities, attenuation from five to two actors in the process, and the standardization of procedures in the process. It then confirms that the BPMN notation assists in strategic decisions and collaborates in identifying the reality that presents itself with the business process and, through the analysis of the mapped process, it is possible to define the improvements to be applied.
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    Uma ferramenta multicritérios de priorização de requisitos baseada na técnica Analytic Hierarchy Process
    (Universidade Católica do Salvador, 2020-06-26) Pergentino, Jessica das Neves; Reis, Marcelo Indio dos; http://lattes.cnpq.br/; Reis, Marcelo Indio dos; http://lattes.cnpq.br/; Wyzykowski, André Brasil Vieira; http://lattes.cnpq.br/; Borges, Fernando Cezar Reis; http://lattes.cnpq.br/
    Over time, companies and businesses have constantly evolved, which makes systems and the way to develop software evolve together, becoming increasingly interactive the way to create products. Thus, it is important to have a consistent requirements prioritization phase, which takes into account the stakeholders requirements and development conditions. Doing good prioritization can define whether product development will be successful or not. The requirements prioritization system presented in this paper aims to assist decision makers in the management and prioritization of functional requirements of their projects., taking into account the prioritization considerations. This system will make it possible to use the requirements prioritization technique Analytic Hierarchy Process based on multicriteria in an automated way, facilitating the use of the technique. For this, it was necessary to make a selection of the criteria, through a study in the literature and interviews with three specialists in the area of requirements engineering. For the construction of the tool, an analysis of the domain was made, followed by the survey of the functional requirements and the elaboration of the documentation. To validate the proposed solution, a case study was carried out in a project of the software factory of the Catholic University of Salvador, the case study had four phases, where the first was the identification of the participants’ profile, the second was the prioritization of requirements using an auxiliary spreadsheet, in the sequence, the participants carried out the prioritization using the tool described in this paper, finally, a questionnaire was applied to collect information about the priorities and impressions of the participants. The results obtained in the case study demonstrate that the tool was able to automate the technique of the Analytical Hierarchy Process and facilitate the process of prioritizing requirements. The criteria presented in this paper are also suitable for the context of the project in which they were used. Participants reported that the prototype of the tool is intuitive and practical, showing that it has the potential to be improved for commercial use.
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    Sistema de gerenciamento de energia elétrica em laboratórios de informática
    (Universidade Católica do Salvador, 2021-12-10) Costa, Gabriel Barreto da Silva; Assis, Victor Dias dos Santos; Wyzykowski, André Brasil Vieira; http://lattes.cnpq.br/; Melo, Osvaldo Requião; http://lattes.cnpq.br/; Borges, Fernando Cezar Reis; http://lattes.cnpq.br/
    The present work focuses on a distributed system for managing electrical energy consumption in computer labs. From the increase in electricity consumption rates in Brazil and the observation of the difficulties faced by universities in keeping the elec- tricity consumption of computer labs within the scope and budgets foreseen. Therefore, the lack of transparency of the cost of using computers in a given period of time has consequences both for the university and for students and researchers, who rely on this resource as much as support in their academic lives. With the idea of a system to manage these laboratories, it is expected that universities have greater control of the environment in question, with regard to the time of use, costs and efficiency in the use of the computer, by the user.