MIIS 2020 will take place in Shenzhen, from December 18th to December 20th, 2020. It will be co-hosted by Shenzhen Research Institute of Big Data, The Chinese University of Hong Kong, Shenzhen, and Tsinghua-Berkeley Shenzhen Institute. The workshop will be held at The Chinese University of Hong Kong, Shenzhen on December 18th, and at Songshan Lake, Dongguan on December 19th-20th. The future of big data research is full of challenges and opportunities. The workshop aims to bring together the world's top scientists, researchers and engineers to exchange and share the ideas of using mathematics, especially latest computing technologies, to model and solve practical issues in data science, information science, big data analysis and artificial intelligence.