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It's a kind of carefully designed estimators that start with a regression adjustment then use AIPW to correct the regression adjustment.
And in doing so cancels out the errors of the regression adjustment and IPW two first order.
You might think that I kind of just pull this estimator out of a hat and then it's strange, but maybe that's true.
Listen to native speakers pronounce “cancels” as a noun in real conversational contexts with synchronized timestamps and subtitles.