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Table 5 Summary of the univariate models’ performance

From: Stochastic forecasting of project streams for construction project portfolio management

Model

Set 

RMSE

MAE

Holt winter (additive seasonal)

Training set

8.10

6.58

Test set

11.73

8.99

ARMA(8,8)

Training set

7.93

6.28

Test set

8.82

6.84

ARIMA(0,0,1) (0,0,2) [12]

Training set

9.28

7.46

Test set

10.22

8.15