Open josepablog opened 7 years ago
Also I have date in data. So should I add negative examples by date? What strategies are there?
@josepablog Please have a look at the example in issue https://github.com/ibayer/fastFM/issues/71 .
@Damdinov Which non uniform sampling strategy works best depends very much on the dataset. There are however two data independent strategys: i) use the current predictions for adaptive sampling as in [0] ii) use all the negative samples without sampling [1].
Both approaches are not yet implemented in fastFM.
[0] Improving Pairwise Learning for Item Recommendation from Implicit Feedback [1] A Generic Coordinate Descent Framework for Learning from Implicit Feedback
Hello,
I can't seem to find in the documentation an example of using
fastFM
for ranking. I am trying to use BPR for collaborative filtering with implicit feedback, and I am trying to decide a reasonable sampling strategy for negative examples.Is there an example available? :)
Thanks, Jose