f
f(x) + \nabla f(x) (\cdot-x) + \tfrac{\alpha}{2} \lVert \cdot-x \rVert_2^2
x
f(x)
f(x^*) + \tfrac{\alpha}{2} \lVert x-x^* \rVert_2^2
f(x^*)
f(x) - \tfrac{1}{2\alpha} \lVert \nabla f(x) \rVert_2^2
f(x)
f(x^*)
f
f(x) + \nabla f(x) (\cdot-x) + \tfrac{\beta}{2} \lVert \cdot-x \rVert_2^2
x
f(x^*)+\tfrac{\beta}{2} \lVert x-x^* \rVert_2^2
f(x)
f(x^*)
f
f(x)
f(x^*)
f(x) - \tfrac{1}{2\beta} \lVert \nabla f(x) \rVert_2^2
2
1
3
4
+1
+1
+2
+2
train
gap
test
gap
train
train
gap
test
gap
h
h
2v+1
h
\le h
2v+1
Susceptible
Infectious
Removed
Susceptible
Infectious
Removed
Quarantined
\beta
\beta
\gamma
\gamma
\delta
S
I
R
Evidences
S
I
R
Evidences
S
I
R
Evidences
\pi
\theta
X_t
Y_t
t