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Multi-stage optimization of a deep model: A case study on ground motion modeling

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  • Amirhessam Tahmassebi
  • Amir H Gandomi
  • Simon Fong
  • Anke Meyer-Baese
  • Simon Y Foo

Abstract

In this study, a multi-stage optimization procedure is proposed to develop deep neural network models which results in a powerful deep learning pipeline called intelligent deep learning (iDeepLe). The proposed pipeline is then evaluated by a challenging real-world problem, the modeling of the spectral acceleration experienced by a particle during earthquakes. This approach has three main stages to optimize the deep model topology, the hyper-parameters, and its performance, respectively. This pipeline optimizes the deep model via adaptive learning rate optimization algorithms for both accuracy and complexity in multiple stages, while simultaneously solving the unknown parameters of the regression model. Among the seven adaptive learning rate optimization algorithms, Nadam optimization algorithm has shown the best performance results in the current study. The proposed approach is shown to be a suitable tool to generate solid models for this complex real-world system. The results also show that the parallel pipeline of iDeepLe has the capacity to handle big data problems as well.

Suggested Citation

  • Amirhessam Tahmassebi & Amir H Gandomi & Simon Fong & Anke Meyer-Baese & Simon Y Foo, 2018. "Multi-stage optimization of a deep model: A case study on ground motion modeling," PLOS ONE, Public Library of Science, vol. 13(9), pages 1-23, September.
    • Handle: RePEc:plo:pone00:0203829
    DOI: 10.1371/journal.pone.0203829
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    References listed on IDEAS

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    1. Xiangtao Li & Minghao Yin, 2012. "Application of Differential Evolution Algorithm on Self-Potential Data," PLOS ONE, Public Library of Science, vol. 7(12), pages 1-11, December.
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    1. Suleiman Hassan Otuoze & Dexter V. L. Hunt & Ian Jefferson, 2021. "Neural Network Approach to Modelling Transport System Resilience for Major Cities: Case Studies of Lagos and Kano (Nigeria)," Sustainability, MDPI, vol. 13(3), pages 1-20, January.

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