[Retracted] Classification Method of Ideological and Political Resources of Broadcasting and Hosting Professional Courses Based on SOM Artificial Neural Network

Table 2

Automatic clustering results.

Number of categories	BIC standard	BIC change rate	Distance measurement ratio
1	1118956.52	0.073	1.867
2	69524.13	0.056	1.849
3	71526.45	0.026	1.652
4	72354.65	1	8.594
5	73245.52	−0.025	1.542
6	75645.82	−0.015	1.668
7	76845.25	−0.085	1.452
8	78945.62	−0.062	1.325
9	80456.25	−0.089	1.845
10	82648.22	−0.094	1.468