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Metamodeling Techniques for Multidimensional Ship Design Problems ; Técnicas para el desarrollo de metamodelos aplicadas a problemas

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  • معلومة اضافية
    • بيانات النشر:
      Cotecmar
    • الموضوع:
      2010
    • Collection:
      SHIP Science & Technology (E-Journal) / Ciencia y tecnología de buques (Cotecmar)
    • نبذة مختصرة :
      Metamodels, also known as surrogate models, can be used in place of computationally expensive simulation models to increase computational efficiency for the purposes of design optimization or design space exploration. Metamodel-based design optimization is especially advantageous for ship design problems that require either computationally expensive simulations or costly physical experiments. In this paper, three metamodeling methods are evaluated with respect to their capabilities for modeling highly nonlinear, multimodal functions with incrementally increasing numbers of independent variables. Methods analyzed include kriging, radial basis functions (RBF), and support vector regression (SVR). Each metamodeling technique is used to model a set of single-output functions with dimensionality ranging from one to ten independent variables and modality ranging from one to twenty local maxima. The number of points used to train the models is increased until a predetermined error threshold is met. Results show that each of the three methods has its own distinct advantages. ; Los metamodelos, también conocimos como modelos substitutos, pueden ser utilizados en lugar de modeloscuyas simulaciones tienen un costo computacional muy alto, incrementado con esto la eficiencia en procesos de optimización de diseños o en el diseño de exploraciones espaciales. La optimización de diseños basados en metamodelos es especialmente ventajosa en problemas de diseño relacionado con vehículos marinos en los cuales serequieran simulaciones con un alto costo computacional o bien de experimentos con una alta inversión en equipos.En este artículo se evalúan tres métodos para el desarrollo de metamodelos. La evaluación de estos métodos es desarrollada teniendo en cuenta la capacidad de cada uno de ellos para modelar funciones multimodales no lineales con un número creciente de variables independientes. Dentro de los métodos analizados se encuentran el método de kriging, el método de funciones de base radiales, y el método de regresión con ...
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      application/pdf; text/html
    • Relation:
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    • الدخول الالكتروني :
      https://shipjournal.co/index.php/sst/article/view/39
    • Rights:
      Copyright (c) 2010 Ciencia y tecnología de buques
    • الرقم المعرف:
      edsbas.7EAB6590