Federated learning 19 Privacy-preserving techniques 8 federated learning 7 Privacy 6 Learning systems 5 privacy 5 Data privacy 4 Federated Learning 4 Differential privacies 3 Privacy preserving 3 Secure multi-party computation 3 article 3 human 3 Activity monitoring 2 Artificial intelligence 2 Blockchain 2 COVID-19 2 Cloud computing 2 Communication cost 2 Computational modeling 2 Data models 2 Deep learning 2 Driver activity monitoring 2 Edge computing 2 Ho-momorphic encryptions 2 Homomorphic-encryptions 2 IID data 2 Internet 2 Internet of things 2 Learning frameworks 2