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. 2022 Feb 7;12:708742. doi: 10.3389/fphys.2021.708742

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Copyright © 2022 Shi, Yao, Xu, Hu, Tu, Lan, Cui, Cui, Huang, Li, Bi and Li.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Receiver operating characteristics (ROCs) of 10 times repeated experiments obtained using random forest over four datasets. (A) ROCs over “Tongue” dataset. (B) ROCs over “Pulse” dataset. (C) ROCs over “Tongue & Pulse” dataset. (D) ROCs over “Tongue & Pulse & Age & BMI” dataset.