<math>\max _{\phi_q, \hat{f}_q, \phi_q^{\dagger}, q} E I\left(f_{\Phi_q}\right) \quad \text{s.t.}\left\|\phi_q^{\dagger}(Y(t+1))-X_{t+1}\right\|<\epsilon </math> | <math>\max _{\phi_q, \hat{f}_q, \phi_q^{\dagger}, q} E I\left(f_{\Phi_q}\right) \quad \text{s.t.}\left\|\phi_q^{\dagger}(Y(t+1))-X_{t+1}\right\|<\epsilon </math> |