lightgcn with bpr loss issue

[rajanskumarsoni]

When I ma running lightgcn model with negative and postive samples still it is saying 'negative_sample' parameter to be true. I want to make it false because I already have negative sample in my data.

[massquantity]

bpr loss belongs to pairwise loss, which is complicated to process with users providing both negative and positive samples. So it only supports negative sampling, see Caution in Loss.