[Retracted] Automatic English Pronunciation Evaluation Algorithm Based on Sequence Matching and Feature Fusion

Table 4

Time complexity comparison table.

Category	AS	AS + RSP	PCA	KPCA (cosine)	Our method
All Souls	7.3	7.73	7.63	15.66	9.53
Ashmolean	6.16	6.54	6.08	10.87	7.38
Balliol	7.43	8.04	7.98	20.71	12.76
Bodleian	8.36	8.81	8.67	20.93	13.1
Christ Church	7.21	7.03	7.47	18.12	10.73
Cornmarket	4.41	4.48	4.58	11.93	7.68
Hertford	7.89	8.34	8.09	18.99	12.27
Magdalen	0.7	0.76	0.77	0.71	0.7
Pitt Rivers	6.76	6.36	6.6	14.82	8.74
Radcliffe Camera	4.23	4.09	4	9.04	6.1