Browse > Article
http://dx.doi.org/10.7842/kigas.2021.25.5.63

Algorithm for Determining Whether Work Data is Normal using Autoencoder  

Kim, Dong-Hyun (CRIG Corporation)
Oh, Jeong Seok (Institute of Gas Safety R&D, Korea Gas Safety Corporation)
Publication Information
Journal of the Korean Institute of Gas / v.25, no.5, 2021 , pp. 63-69 More about this Journal
Abstract
In this study, we established an algorithm to determine whether the work in the gas facility is a normal work or an abnormal work using the threshold of the reconstruction error of the autoencoder. This algorithm do deep learning the autoencoder only with time-series data of a normal work, and derives the optimized threshold of the reconstruction error of the normal work. We applied this algorithm to the time series data of the new work to get the reconstruction error, and then compare it with the reconstruction error threshold of the normal work to determine whether the work is normal work or abnormal work. In order to train and validate this algorithm, we defined the work in a virtual gas facility, and constructed the training data set consisting only of normal work data and the validation data set including both normal work and abnormal work data.
Keywords
autoencoder; reconstruction error; time series; deep learning; gas work;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Md. Rezaul Karim, Ahmed Menshawy, Deep Learning By Example, O'Reilly, (2018)
2 J. An and S. Cho., Variational autoencoder based anomaly detection using reconstruction probability, (2015)
3 Y. LeCun and C. Cortes, MNIST handwritten digit database, (2010)
4 B. Zong, Q. Song, M. R. Min, W. Cheng, C. Lumezanu, D. Cho, and H. Chen., Deep autoencoding gaussian mixture model for unsupervised anomaly detection. In International Conference on Learning Representations, (2018)
5 V. Nair and G. E. Hinton., Rectified linear units improve restricted boltzmann machines. In Proceedings of the 27th international conference on machine learning (ICML-10), 807-814, (2010)
6 D. P. Kingma and J. Ba. Adam, A method for stochastic optimization. In International Conference on Learning Representations, (2015)