The finding is very concise, and abstract sums it nicely.
Main work by Elad Ben Zaken, with contributions by @ravfogel https://twitter.com/yoavgo/status/1344769789328306176 …pic.twitter.com/PgWOqK5JF4
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as you said, tuning more uniformly should be intuitively stronger. it does not seem to be the case. anyhow, for me the thing is not that the biases are special, but that they are sufficient.
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