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Table 1 Experiments data and corresponding transfer functions

From: Incorporate intelligence into the differentiated services strategies of a Web server: an advanced feedback control approach

  RD case AD case
Class 0 Class 1 Transfer function G(z) Class 0 Class 1 Transfer function G(z)
Workload A 200 200 0.95 z 0.12 z 2 0.74 z + 0.37 100 400 0.82 z 0.52 z 2 + 0.13 z + 0.03
Workload B 150 250 2.28 z + 0.08 z 2 0.31 z + 0.27 150 250 0.36 z 0.15 z 2 0.14 z + 0.05
Workload C 300 300 0.47 z + 0.21 z 2 0.56 z + 0.26 200 300 0.49 z 0.25 z 2 0.25 z + 0.03