*6.4. Identification*

When the evaluation level is divided in order, the maximum membership degree is no longer applicable, so the credible degree criterion is usually adopted. For positive sequence partitioning, the confidence level is usually assumed to be λ (λ > 0.5), and the value of λ is 0.6 or 0.7. Set:

$$\mathbf{k}\_0 = \min\_{\mathbf{k}} \left\{ \mathbf{k} : \sum\_{\mathbf{l}=1}^{\mathbf{k}} \mu\_{\mathbf{il}} \ge \lambda, \mathbf{k} = 1, 2, \dots, \mathbf{p} \right\} \tag{11}$$
