Table 7. C³ training dataset document length analysis.

	Average lengths	Max lengths	Exceeding ratio*	Samples
$C_d^3$	152	1,540	12.3%	5,856
$C_m^3$	290	1,274	15.9%	6,013
$C^3$	222	1,540	14.2%	11,869

Note:

^*The exceeding ratio means the percentage of the number of samples with a docment length exceeding 512.