https://h17.github.io/fastreport/
Various data science competitions:
https://towardsdatascience.com/top-competitive-data-science-platforms-other-than-kaggle-2995e9dad93c
https://www.drivendata.org/competitions/
https://www.kaggle.com/c/birdsong-recognition
https://ai.facebook.com/blog/hateful-memes-challenge-and-data-set/
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