Optimization Method of Fusing Model Tree into Partial Least Squares Fang Yu, Jian-Qiang Du, Bin Nie, Jing Xiong, Zhi-Peng Zhu and Lei Liu ITM Web Conf., 12 (2017) 03032 Published online: 05 September 2017 DOI: 10.1051/itmconf/20171203032