human 13 Humans 11 Learning systems 7 Deep learning 6 Machine learning 6 Aged 5 Article 5 Artificial intelligence 5 Male 5 Optimization 5 aged 5 male 5 Iterative methods 4 Open source software 4 Performance 4 Photovoltaic 4 Visualization 4 adult 4 article 4 case report 4 procedures 4 Biomimetics 3 Blockchain 3 COVID-19 3 Calculations 3 Classification 3 Convolutional neural networks 3 Data mining 3 Data visualization 3 Decision making 3