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Z 4 , thus we can make cluster analysis with
Zhang et al. (2007)'s method. The clustering results are shown in Table 2.20 (Wang
et al. 2011).
We can see from Tables 2.19 and 2.20 that the netting method can make more
detailed clustering results than Zhang et al. (2007)'s method.
In order to illustrate the computation complexity, we generate an amount of IFVs
at random by MATLAB. Then we measure the computation time before we get the
correspondingmatrix that canmake cluster analysis for the twomethods respectively.
The results are shown in Table 2.21 (Wang et al. 2011).
After computation, we have Z 8
=
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