docs: def uncons_term(params, c):
      """
      Description:
          Computes an additional value for the objective function value
          when used in an unconstrained optimization formulation.
      Parameters:
          params: all parameters for the Plackett-Luce mixture model (numpy ndarray)
          c:      constant multiplier scaling factor of the returned term
      """
      return (c * ((np.sum(params[1:5]) - 1)**2)) + (c * ((np.sum(params[5:]) - 1)**2))