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. 2021 Nov 18;21(22):7665. doi: 10.3390/s21227665

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Figure A2 — Example of frames from a video tagged as ‘Surprised’ incorrectly predicted as ‘Happy’. The whole video was incorrectly predicted as ‘Happy’.