Identification of Amaranthus Species Using Visible-Near-Infrared (Vis-NIR) Spectroscopy and Machine Learning Methods. - Soo-In Sohn; Young-Ju Oh; Subramani Pandian; Yong-Ho Lee; John-Lewis Zinia Zaukuu; Hyeon-Jung Kang; Tae-Hun Ryu; Woo-Suk Cho; Youn-Sung Cho; Eun-Kyoung Shin (Remote. Sens., 2021)