Identification of the Causative Disease of Intermittent Claudication through Walking Motion Analysis: Feature Analysis and Differentiation

Table 3

Classification results at every classifier.

(a) LDA (linear discriminant analysis)

Class of test data	Normal	PAD	L5	L4	All
Success	10	8	10	2	30
Failure	3	2	3	8	16
Total	13	10	13	10	46
Accuracy	0.77	0.8	0.77	0.2	0.65

(b) Decision tree

Class of test data	Normal	PAD	L5	L4	All
Success	7	5	5	1	18
Failure	6	5	8	9	28
Total	13	10	13	10	46
Accuracy	0.54	0.5	0.38	0.1	0.39

(c) One-versus-one SVM (OVO)

Class of test data	Normal	PAD	L5	L4	All
Success	12	8	9	3	32
Failure	1	2	4	7	14
Total	13	10	13	10	46
Accuracy	0.92	0.8	0.69	0.3	0.70

(d) One versus-the-rest SVM (OVR)

Class of test data	Normal	PAD	L5	L4	All
Success	13	8	9	1	31
Failure	0	2	4	9	15
Total	13	10	13	10	46
Accuracy	1	0.8	0.69	0.1	0.67

(e) Presented SVM-based methodology

Class of test data	Normal	PAD	L5	L4	All
Success	11	9	11	7	38
Failure	2	1	2	3	8
Total	13	10	13	10	46
Accuracy	0.85	0.9	0.85	0.7	0.83