Nonparametric Hierarchical Hidden Semi-Markov Model for Brain Fatigue Behavior Detection of Pilots During Flight

作者：Wu, Edmond Q.^*; Zhu, Li-Min^*; Li, Gui-Jiang; Li, Hong-Jun; Tang, Zhiri^*; Hu, Ruihan^*; Zhou, Gui-Rong

来源：IEEE Transactions on Intelligent Transportation Systems, 2022, 23(6): 5245-5256.

DOI：10.1109/TITS.2021.3052801

• Hidden Markov models
• Brain modeling
• Fatigue
• Mixture models
• Electroencephalography
• Vehicles
• Feature extraction
• Pilots' fatigue
• electroencephalogram signals
• hidden Markov models
• hierarchical Dirichlet process
• t-mixture model

The evaluation of pilot brain activity is very important for flight safety. This study proposes a Hidden semi-Markov Model with Hierarchical prior to detect brain activity under different flight tasks. A dynamic student mixture model is proposed to detect the outlier of emission probability of HSMM. Instantaneous spectrum features are also extracted from EEG signals. Compared with other latent variable models, the proposed model shows excellent performance for the automatic inference of brain cognitive activity of pilots. The results indicate that the consideration of hierarchical model and the emission probability with t mixture model improves the recognition performance for Pilots' fatigue cognitive level.

• 单位
  上海交通大学