as for 2 version ffm(ftrl), which is better or maybe one is not right implemented

[jackyhawk]

https://github.com/superclocks/ffm/blob/master/libffm-ftrl-1.13/ffm.cpp
ffm_long align0 = (ffm_long)model.k*3;

vs https://github.com/CNevd/libffm-ftrl/blob/master/ffm.cpp

_ffm_long align0 = (ffm_long)model.k*2;_

or maybe one is not right implemented?

thanks very much

[jackyhawk]

any suggestion?