[Retracted] Improvement of Student Weariness Emotion in English Classroom Based on Intelligent Internet of Things and Big Data Technology

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static-preview.hindawi.com/articles/oti/volume-2022/9369389/figures/9369389.fig.009a.svgz" name="9369389.fig.009a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Original image</td></tr><tr class="fig-image" id="b"><td><object data="https://static-preview.hindawi.com/articles/oti/volume-2022/9369389/figures/9369389.fig.009b.svgz" name="9369389.fig.009b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Expression recognition</td></tr></table>

<div>Example image of facial expression recognition of students in English class.</div>

Occupational Therapy International

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Figure 9

Figure 9: [Retracted] Improvement of Student Weariness Emotion in English Classroom Based on Intelligent Internet of Things and Big Data Technology 