Solid-oxide fuel cell Solid oxide fuel cells (SOFC) 9 Fuel cell system 6 SOFC 4 Kalman filters 3 BP neural network 2 BP neural networks 2 Carbon 2 Cell-based 2 Data-driven fault diagnosis 2 Degradation resistance 2 Deposition 2 Electrodes 2 Failure analysis 2 Fault detection 2 Faults diagnosis 2 Forecasting 2 Health 2 Heat exchanger rupture 2 Heat exchangers 2 Learning algorithms 2 Long life 2 Long short-term memory 2 Neural networks 2 Performance degradation 2 Principal component analysis 2 Principal-component analysis 2 Real- time 2 Solid Oxide Fuel Cell 2 State of health 2