Deep Learning Evolutionary Optimization for Regression of Rotorcraft Vibrational Spectra

Daniel Martinez, Wesley Brewer, Gregory Behm, Andrew Strelzoff, Andrew Wilson, Daniel Wade

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Scopus citations

Abstract

A method for Deep Neural Network (DNN) hyperparameter search using evolutionary optimization is proposed for nonlinear high-dimensional multivariate regression problems. Deep networks often lead to extensive hyperparameter searches which can become an ambiguous process due to network complexity. Therefore, we propose a user-friendly method that integrates Dakota optimization library, TensorFlow, and Galaxy HPC workflow management tool to deploy massively parallel function evaluations in a Genetic Algorithm (GA). Deep Learning Evolutionary Optimization (DLEO) is the current GA implementation being presented. Compared with random generated and hand-tuned models, DLEO proved to be significantly faster and better searching for optimal architecture hyperparameter configurations. Implementing DLEO allowed us to find models with higher validation accuracies at lower computational costs in less than 72 hours, as compared with weeks of random and manual search. Moreover, DLEO parallel coordinate plots provided valuable insights about network architecture designs and their regression capabilities.

Original languageEnglish
Title of host publicationProceedings of MLHPC 2018
Subtitle of host publicationMachine Learning in HPC Environments, Held in conjunction with SC 2018: The International Conference for High Performance Computing, Networking, Storage and Analysis
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages57-66
Number of pages10
ISBN (Electronic)9781728101804
DOIs
StatePublished - Jul 2 2018
Externally publishedYes
Event2018 IEEE/ACM Machine Learning in HPC Environments, MLHPC 2018 - Dallas, United States
Duration: Nov 12 2018 → …

Publication series

NameProceedings of MLHPC 2018: Machine Learning in HPC Environments, Held in conjunction with SC 2018: The International Conference for High Performance Computing, Networking, Storage and Analysis

Conference

Conference2018 IEEE/ACM Machine Learning in HPC Environments, MLHPC 2018
Country/TerritoryUnited States
CityDallas
Period11/12/18 → …

Bibliographical note

Publisher Copyright:
© 2018 IEEE.

Keywords

  • Genetic algorithms
  • High performance computing (HPC)
  • Hyperparameter tuning
  • Neural architecture search (NAS)

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