Published on in Vol 6, No 3 (2020): Jul-Sep
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/20794, first published
.
![Big Data, Natural Language Processing, and Deep Learning to Detect and Characterize Illicit COVID-19 Product Sales: Infoveillance Study on Twitter and Instagram Big Data, Natural Language Processing, and Deep Learning to Detect and Characterize Illicit COVID-19 Product Sales: Infoveillance Study on Twitter and Instagram](https://asset.jmir.pub/assets/8801cee41a4bd1570f563659ca7ee191.png 480w,https://asset.jmir.pub/assets/8801cee41a4bd1570f563659ca7ee191.png 960w,https://asset.jmir.pub/assets/8801cee41a4bd1570f563659ca7ee191.png 1920w,https://asset.jmir.pub/assets/8801cee41a4bd1570f563659ca7ee191.png 2500w)
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