This Special Issue focuses on the challenges and opportunities presented by the exponential growth of data and the development of IT technologies such as the internet, mobile internet, internet of things (IoT), artificial intelligence (AI), and the meta-universe. It welcomes contributions from scholars, experts, researchers, and engineers in related areas to submit their contributions, providing new solutions and ideas. Topics of interest include, but are not limited to, cloud computing, cloud security, big data computation, storage and resource management systems, and novel big data applications.