Table 2.

The detailed information of 14 different dataset combinations.

	Training Data	Validation Data
Set1–Set5	80% Random Sampling	20% Random Sampling
Set6	1998.01–2014.03	2014.11–2016.03
Set7	1998.01–2012.03 and 2014.11–2016.03	2012.11–2014.03
Set8	1998.01–2010.03 and 2012.11–2016.03	2010.11–2012.03
Set9	1998.01–2008.03 and 2010.11–2016.03	2008.11–2010.03
Set10	1998.01–2006.03 and 2008.11–2016.03	2006.11–2008.03
Set11	1998.01–2004.03 and 2006.11–2016.03	2004.11–2006.03
Set12	1998.01–2002.03 and 2004.11–2016.03	2002.11–2004.03
Set13	1998.01–2000.03 and 2002.11–2016.03	2000.11–2002.03
Set14	2000.11–2016.03	1998.01–2000.03