[FEA] Implement Link Prediction in cuGraph-PyG #4641
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alexbarghi-nv
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…to pyg-linkpred
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Adds support for negative sampling in `pylibcugraph` and `cugraph-pyg`. Closes rapidsai/cugraph-gnn#39 Merge after #4641 Authors: - Alex Barghi (https://github.com/alexbarghi-nv) Approvers: - Chuck Hastings (https://github.com/ChuckHastings) - Rick Ratzel (https://github.com/rlratzel) URL: #4660
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Included in #4660 |
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Updates the distributed sampler and cuGraph-PyG samplers and loaders to support link prediction. Currently does not support negative sampling. Resolves an issue where very small minibatches were interpreted as COO instead of CSR.
Also fixes a bug where the cuGraph-PyG
GraphStoreobject calculated the number of vertices incorrectly for homogeneous graphs, which was encountered when testing link prediction on small batches.Merge after #4628
Closes #2992