5c43ff819575,007

http://nhiro.org.s3.amazonaws.com/f/1/f16fd2bd8793a5591fc35d40c34e0693.jpg https://gyazo.com/f16fd2bd8793a5591fc35d40c34e0693

(OCR text)

IPWEE

Inverse Probability Weighing Estimator

*傾向スコアe(x) = p(z = 1|x)の逆数を使う

Zi

Wi

ei

N ZiVi

i=1

e i

Ei=lei

= 0 >wi = 0

Zi

zy

E(wy) = E(y1)か?(なお E(wy) =E(2) )

е