Case	$Σ_{u}$	n	平均长度		覆盖概率
Case	$Σ_{u}$	n	NA	EL	NA	EL
I	$0.25 I_{2}$	100	0.2916	0.2713	0.881	0.903
		150	0.2725	0.2593	0.904	0.919
		200	0.2396	0.2119	0.912	0.921
	$0.5 I_{2}$	100	0.3325	0.3109	0.883	0.892
		150	0.3191	0.2867	0.890	0.910
		200	0.2758	0.2610	0.907	0.918
II	$0.25 I_{2}$	100	0.2805	0.2693	0.891	0.911
		150	0.2716	0.2609	0.912	0.927
		200	0.2309	0.2231	0.919	0.932
	$0.5 I_{2}$	100	0.3341	0.3096	0.890	0.907
		150	0.3082	0.2719	0.913	0.919
		200	0.2718	0.2576	0.917	0.921