Github user myui commented on the issue:
https://github.com/apache/incubator-hivemall/pull/149
```
iter tr_logloss va_logloss
1 0.49738 0.48776
2 0.47383 0.47995
3 0.46366 0.47480
4 0.45561 0.47231
5 0.44810 0.47034
6 0.44037 0.47003
7 0.43239 0.46952
8 0.42362 0.46999 <- ffm stops one va_logloss is increased
but va_logloss might decrease in the next iteration
9 0.41394 0.47088 <- once
```
In 8-th iteration, `ready to stop once va_logloss increase`.
If va_logloss descreases in the 9th iteration, then continue iteration (set
not ready to finish).
If va_logloss increases in the 9th iteration, then emit the current model
in the 9th iteration.
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