Supporting Information: Improved Representations of Heterogeneous Carbon Reforming Catalysis using Machine Learning Xinyu Li 1 , Raymond Chiong 1 , Zhongyi Hu 2 , David Cornforth 1 , and Alister Page 3,* 1 School of Electrical Engineering and Computing, The University of Newcastle, Callaghan, New South Wales 2308, Australia 2 School of Environmental and Life Sciences, The University of Newcastle, Callaghan, New South Wales 2308, Australia 3 School of Information Management, Wuhan University, Wuhan, 430072, China * Alister.Page@newcastle.edu.au