PetarV- / DGI

Deep Graph Infomax (https://arxiv.org/abs/1809.10341)
MIT License
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Question about PPI dataset #5

Closed gear closed 5 years ago

gear commented 5 years ago

Hi,

Thank you for making the code available. I would like to ask a question about a remark you made in your paper about the PPI dataset. On page 8, paragraph "Inductive learning on multiple graphs", you noted that 40% of the node has all-zero feature vector. However, the feature vectors loaded using GraphSAGE (http://snap.stanford.edu/graphsage/) is dense. Did you use a different set of feature vectors or a different PPI dataset?

Thank you for your time! If I misunderstood something, please kindly point out my mistake.

Edit: Sorry I made a mistake when I check the feature vectors. It was indeed 42% all zeros.