China during March 27-29, 2026. It is co-organized by Southwestern University of Finance and Economics, China and Southwest University of Science and Technology, China; assisted by Donghua University, China. We are pleased to invite you to submit and to present your latest work in this important scientific event. Big data research is now well established as very diverse and pluri-disciplinary research area whose objective is to deal with massive and heterogeneous datasets and that are too large to be manipulated by conventional modelling and most current computational approaches. Clearly, big data challenges should require novel approaches and success stories should be shared, this favoring exchanges, cross-fertilization and finally advances as well as future research directions to consider.