Difference between edge_index and edge_label_index #3975
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rusty1s
Jeriousman
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Literally what is difference between edge_index and edge_label_index? I guess it has something to do with negative sampling but I wish I can get some firm detailed information with some examples. |
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Answered by
rusty1s
Jan 30, 2022
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Sorry for the confusion.
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Thank you for your clear answer! |
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Answer selected by
Jeriousman
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Sorry for the confusion.
edge_indexdenotes the edges that are used for message passing inside a GNNedge_label_indexdenote the pairs of nodes that are used for supervision/loss computation. For example, we try to predict new pairs of links inedge_label_indexafter propagating information and learning node embeddings based onedge_index. In addition, as you correctly pointed out,edge_label_indexcontains both positive and negative pairs of examples.