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Fig. 7 Real curve of the flow evolution
Fig. 8 Connectors of sampling signals (pressure and
fl
ow)
then to the choice of the number of clusters. We apply the classi
cation entropy test
CE for each outputs pressure (P) and
fl
flow (Q). We noted CEP CEQ respectively.
N X
X
N
c
i¼1 l lik log ð l lik Þ
1
C ec ð c Þ ¼
ð
22
Þ
k¼1
C opt ¼
min C ec ð
½
c
Þ
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