An adaptive sparse polynomialchaos technique based on anisotropic indices

• Christos Salis ^[1] ; Nikolaos V. Kantartzis ^[2] ; Theodoros Zygiridis ^[1]
  1. [1] University of Western Macedonia

     University of Western Macedonia

     Dimos Kozani, Grecia

     
  2. [2] Aristotle University of Thessaloniki

     Aristotle University of Thessaloniki

     Dimos Thessaloniki, Grecia

     
• Localización: Compel: International journal for computation and mathematics in electrical and electronic engineering, ISSN 0332-1649, Vol. 39, Nº 3, 2020, págs. 157-174
• Idioma: inglés
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• Resumen

  • The fabrication of electromagnetic (EM) components may induce randomness in several design parameters. In such cases, an uncertainty assessment is of high importance, as simulating the performance of those devices via deterministic approaches may lead to a misinterpretation of the extracted outcomes. This paper aims to present a novel heuristic for the sparse representation of the polynomial chaos (PC) expansion of the output of interest, aiming at calculating the involved coefficients with a small computational cost