#1 -- What an utter lack of transparency. Researchers form multiple groups, including npub1ynhr2md8vqk5l6wde7ujavlfklx8a2tgueunhekr6lp7g2q5f2ksxf5uz0 (npub1ynh…5uz0) and npub1rhr0y4vaqskyq2qejhquzq90yr586hf948m3cgxd7pcqamg4l8cqwpgh5p (npub1rhr…gh5p) when they were at Google, have been calling for clear and thorough documentation of training data & trained models since 2017.
In Bender & Friedman 2018, we put it like this:
/1
