Biomedical Engineering Reference
In-Depth Information
RBF kernel (sigma = 0.125,
C
= 0.1)
0.5
0
−
0.5
−
0.1
−
0.6
−
0.4
−
0.2
0
0.2
0.4
0.6
0.8
(a)
Stride length
RBF kernel (sigma = 0.08,
C
= 0.2)
0.6
0.4
0.2
0
−
0.2
−
0.4
−
0.6
−
0.8
−
0.6
−
0.4
−
0.2
0
0.2
0.4
0.6
0.8
(b)
Normalized stride length
FIGURE 7.16 (See color figure following page 204.)
Scatter plots showing the test data and separating surfaces using raw and
normalized gait data by the SVM classifier with RBF kernel. (a) With raw
stride length and cadence and (b) with normalized stride length and cadence.
(From Kamruzzaman, J. and Begg. R. K.,
IEEE Trans. Biomed. Eng.
, 53,
2479-2490, 2006. c
IEEE.)
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