Predicting time series of railway speed restrictions with time-dependent machine learning techniques

Olga Fink (1) , Enrico Zio (2) , Ulrich Weidmann (1)

1 Institute for Transport Planning and Systems
2 SSEC - Chaire Sciences des Systèmes et Défis Energétiques EDF/ECP/Supélec

In this paper, a hybrid approach to combine conditional restricted Boltzmann machines (CRBM) and echo state networks (ESN) for binary time series prediction is proposed. Both methods have demonstrated their ability to extract complex dynamic patterns from time-dependent data in several applications and benchmark studies. To the authors' knowledge, it is the first time that the proposed combination of algorithms is applied for reliability prediction. The proposed approach is verified on a case study predicting the occurrence of railway operation disruptions based on discrete-event data, which is represented by a binary time series. The case study concerns speed restrictions a ecting railway operations, caused by failures of tilting systems of railway vehicles. The overall prediction accuracy of the algorithm is 99.93%; the prediction accuracy for occurrence of speed restrictions within the foresight period is 98% (which corresponds to the sensitivity of the algorithm). The prediction results of the case study are compared to the prediction with a MLP trained with a Newton conjugate gradient algorithm. The proposed approach proves to be superior to MLP.

Domaines: Sciences de l'ingénieur [physics]

Olga Fink, Enrico Zio, Ulrich Weidmann. Predicting time series of railway speed restrictions with time-dependent machine learning techniques. Expert Systems with Applications, 2013, 40 (15), pp.6033-6040. ⟨10.1016/j.eswa.2013.04.038⟩. ⟨hal-00930962⟩