Table 6 Sensitivity analysis results.

From: Predicting product information diffusion for sustainable quality management in industry 4.0: an improved Bass model approach

Parameter

Change (%)

Overall RMSE

Interest decay rate α

+ 20

45.23

Interest decay rate α

+ 10

44.96

Interest decay rate α

− 10

45.21

Interest decay rate α

− 20

46.12

Fan activity level \({\beta _1}\)

+ 20

44.31

Fan activity level \({\beta _1}\)

+ 10

44.83

Fan activity level \({\beta _1}\)

− 10

45.13

Fan activity level \({\beta _1}\)

− 20

45.38

Celebrity effect \({\gamma _1}\)

+ 20

56.67

Celebrity effect \({\gamma _1}\)

+ 10

53.91

Celebrity effect \({\gamma _1}\)

− 10

48.39

Celebrity effect \({\gamma _1}\)

− 20

44.83

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