Overview: This book constitutes thoroughly reviewed, revised and selected papers from the 7th International Conference on Human Centered Computing, HCC 2021, held in virtually, due to COVID- 19, in December 2021. .The 18 full and 9 short papers presented in this volume were carefully reviewed and selected from a total of 68 submissions. The conference focuses on the following three main themes as follows: Data such as Data Visualization, Big Data, Data Security, Hyper connectivity such as Internet of Things, Cloud Computing, Mobile Network and Collaboration such as Collective Intelligence, Pee
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