Slide 18
Slide 18 text
ʢڭࢣ͋ΓʣసҠֶश
ֶशΞϧΰϦζϜ
ྨث
h(X) = ̂
Y
ιʔεσʔλ
P
h ʹΑΔλʔήοτͰ
ͷྨޡ͕ࠩ
࠷খʹͳΔΑ͏ʹ͢Δ
λʔήοτσʔλ
Q
λʔήοτ
Q
(X, Y)P
iid
∼ P
=
(X1
, Y1
),
⋮ ,
(XnP
, YnP
)
(X, Y)Q
iid
∼ Q
=
(XnP
+1
, YnP
+1
),
⋮ ,
(XnP
+nQ
, YnP
+nQ
)
nP
≫ nQ
ྨޡࠩʢظޡࠩʣ
errQ
(h) =
𝔼
Q
[1{h(X) ≠ Y}]
(X, Y) ∼ Q