Fig. 2

a SMSE(Q_D(τ)) is the red solid line, SMSE(Q_LP(τ)) is the green dash-dot line, SMSE(Q_R(τ|x)) is the blue dash line. b SEFF(Q_D(τ|x)) is the red solid line, SEFF(Q_LP(τ|x)) is the green dash-dot line, SEFF(Q_R(τ|x))≡1 is blue dash line