ICFHR 2020 Competition on Offline Recognition and Spotting of Handwritten Mathematical Expressions - OffRaSHME. - Da-Han Wang; Fei Yin; Jin-Wen Wu; Yu-Pei Yan; Zhicai Huang; Gui-Yun Chen; Yao Wang; Cheng-Lin Liu 001 (ICFHR, 2020)