rime.util.dual_bisect.lagrangian

rime.util.dual_bisect.lagrangian(pi, u, v, s, alpha, beta, eps)[source]

L(pi, u, v; s, alpha, beta, eps): = E_xy[ s(x,y) * pi(x,y) - u(x)(pi(x,y)-alpha(x)) - v(y)(pi(x,y)-beta(y)) ] + eps * E_xy[H(pi)]