Table 5

Comparison of predictive accuracy metrics (MASE, RMASE and MAPE)

ModelsTest (Out of sample period)
PeriodMASERMSEMAPE
BDI
ARIMA(0,1,1)20170.1160.2990.151
Reg with ARMA20170.1220.3380.152
TBATS20170.1100.3100.179
HW additive20170.1090.2630.197
HW multiplicative20170.0740.182*0.135
ANN(lag 2, c(10,11))20170.0760.1950.153
System dynamics20170.067*0.1850.133*
Handysize
ARIMA(1,1,4) (1,0,0)[12]20170.1410.1270.125
Reg with ARMA20170.0940.0940.083
TBATS20171.0000.0870.089
HW additive20170.0860.0920.074
HW multiplicative20170.1600.1430.107
ANN(lag 2, c(9,9))20170.0530.0590.048
System dynamics20170.047*0.055*0.043*
Panamax
ARIMA(2,1,1) (0,0,1)[12]20170.1830.3440.251
Reg with ARMA20170.1740.3320.239
TBATS20170.1610.3080.220
HW additive20170.0680.1420.093
HW multiplicative20170.0420.0810.060
ANN(lag 2, c(9,9))20170.0640.1260.094
System dynamics20170.036*0.078*0.054*
Capesize
ARIMA(2,1,1) (0,0,1)[12]20170.1510.5640.339
Reg with ARMA20170.1100.4310.245
TBATS20170.1400.5260.315
HW additive20170.0980.3780.224
HW multiplicative20170.1220.4570.275
ANN(lag 2, c(9,9))20170.0360.1510.082
System dynamics20170.034*0.134*0.082*
Supramax
ARIMA(2,1,1) (0,0,1)[12]20170.1250.1890.165
Reg with ARMA20170.0940.1560.123
TBATS20170.0830.1290.111
HW additive20170.0590.1040.077
HW multiplicative20170.0660.1040.087
ANN(lag 2, c(9,9))20170.050*0.076*0.069*
System dynamics20170.0530.0930.075

Note(s): *Italic figures indicate the minimum error rate in given column

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