Figure 1. DDE system (IMAGE) Science China Press Caption DDE aims to harmonize deep-time Earth data based on a knowledge system to investigate the evolution of Earth, including life, Earth materials, geography, and climate. Integrated methods include artificial intelligence (AI), high performance computing (HPC), cloud computing, semantic web, natural language processing, and other methods. Credit @Science China Press Usage Restrictions Use with credits License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.