Examinando por Materia "techniques"

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    Adaptive LAMDA applied to identify and regulate a process with variable dead time
    (Institute of Electrical and Electronics Engineers Inc., 2020-01-01) Morales L.; Pozo D.; Aguilar J.; Rosales A.; Universidad EAFIT. Departamento de Ingeniería de Sistemas; I+D+I en Tecnologías de la Información y las Comunicaciones
    In this paper, an adaptive intelligent controller based on the fuzzy algorithm called LAMDA (Learning Algorithm for Multivariable Data Analysis) is presented in order to identify and regulate a process with variable dead time. The original algorithm has been used for supervised and unsupervised learning, whose main field of application is the identification of functional states of the systems. In this work a modification of LAMDA has been implemented which is capable of online learning using hybrid techniques. The proposal consists of two stages: training stage to learn about the unknown plant in order to establish initial parameters to the controller, and a second phase, called application, in which the control strategy is updated using online learning. The proposed method is tested in the control objective of regulation of a process with variable dead time, to analyze the viability of its utilization in these types of systems in which their dynamics are variable and unknown. © 2020 IEEE.
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    CME – A web application framework learning technique based on concerns, micro-learning and examples
    (SPRINGER, 2018-01-01) Correa, D.; Isaza, F.A.; Mazo, R.; Giraldo, G.L.; Universidad EAFIT. Departamento de Ingeniería de Sistemas; I+D+I en Tecnologías de la Información y las Comunicaciones
    Nowadays the use of Web Application Frameworks has been the default choice to develop software applications inside the web domain. These frameworks provide many benefits such as: faster development, enhanced security, and clearer structure of code. However, web application frameworks have a high learning curve and each time someone wants to learn a framework, a recurrent question arises: How to reduce that learning curve and be able to use a new web application framework in a short time? Several learning techniques have been used in the context of frameworks; for instance, example-based learning, tutorials, cookbooks, and tools. Nevertheless, those approaches have their own limitations and the question about what is the best way to learn soon those frameworks remains open. In this paper, we introduce a new web application framework learning technique called CME (Concerns, Micro-learning and Examples). This technique defines a customized learning path that a novice developer should follow to learn to use a web application framework. The learning path was built as a mix of concerns, micro-learning and example-based learning concepts. To validate this technique, we carry out a quasi-experiment about a web application framework learning and the development of small web applications with: (i) the use of CME and (ii) the use of a cookbook. The quasi-experiment results showed preliminary evidence that when using CME, novice developers become more operational to develop small web applications in a reduced period of time compared with the use of a cookbook. © Springer International Publishing AG, part of Springer Nature 2018.
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    An immersive virtual reality training system for mechanical assembly
    (2011-01-01) Peniche, A.; Diaz, C.; Trefftz, H.; Paramo, G.; Universidad EAFIT. Departamento de Ingeniería de Sistemas; I+D+I en Tecnologías de la Información y las Comunicaciones
    Given the growing evolution of technology, machinery and manufacturing techniques, conventional methodologies for training the workforce are not enough for the current needs. Therefore methodologies capable to accelerate the training process and able to train the trainee in a wide range of scenarios are claimed for the industrial sector. Virtual reality offers an alternative that has been successfully implemented in other industries, and virtual reality based training systems have numerous advantages over the conventional methodologies, making it a very good option. Based on that premise, this paper explores the implementation of an immersive training system for mechanical assembly based on virtual reality for improving the training process. This system was proved to be as effective as the conventional methodology.