features to complete

[VinceShieh]

I summarize the current design and come out with a few things that can be done to make spark-ffm better.
1. add global bias intercept and one-way interactions, current design only support pairwise interactions
2. normalization support

It'd be nice if any of you are interested in working on this project, you are always welcome and I will try best to help. :)

[lmxiaonuo]

hello, I have used your ffm to train some model in big data, but the tr_loss turns out to be NaN when the data size is larger than 1000000, please do a favor

[Thinkgamer]

@lmxiaonuo I have also encountered this problem. Have you solved it?

[VinceShieh]

I just made a PR for this issue, you can get it from #16
and test on your end.
And also please open an issue if the problem still exists.

[Thinkgamer]

@VinceShieh I have sloved it! thank you

[VinceShieh]

@Thinkgamer did u resolve the issue with the PR I submitted or some other means you tried? If the PR works, I will merge it. Thanks.

[Thinkgamer]

@VinceShieh I did not try your PR，I did some processing on the features. Next I will test your changes and then send feedback. Thank you.