Deep neural networks 1 E-learning 1 Education computing 1 Efficiency 1 Feature extraction 1 Feature selection 1 Features selection 1 Forecasting 1 Learning performance 1 Learning performance prediction 1 Machine learning 1 Multiple linear regression 1 Neural-networks 1 On-line education 1 Online data Online learning 1 Performance prediction 1 Performance prediction models 1 Teachers' 1