Distributed computer systems Computer programming 3 Cryptography 3 Distributed power generation 3 Evolutionary algorithms 3 Optimisations 3 Optimization 3 Peer to peer networks 3 Renewable energy resources 3 Access Control Policy 2 Access control 2 Access control policies 2 Big data 2 Cloud computing 2 Computer architecture 2 Computing paradigm 2 Costs 2 Data Sharing 2 Data handling 2 Deep neural networks 2 Digital storage 2 Distribution systems 2 E-learning 2 Integer Linear Programming 2 Integer programming 2 Learning systems 2 Linear programming 2 Linear-programming 2 Multi objective 2 Peer-to-peer computing 2