corradomonti ( Corrado Monti )

I am looking for graph neural network datasets with partially missing labels. As far as I understand from your paper, the WikiCS dataset can be used for node label prediction. Interpreting semi-supervised in this context, a network can use this dataset and learns from samples with and without labels. Am I right here? Assuming I am correct, I was trying to find such samples in the data, but could not find them easily, thus was a bit confused.

Thanks for your answer!

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benelot

issue commentpmernyei/wiki-cs-dataset

Question on semi-supervised part

Oh ok I see! The training mask does not only mask samples as a whole, but masks also some of the labels only, thus describing a certain pattern of missingness. Thanks!

benelot

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issue commentpmernyei/wiki-cs-dataset

Question on semi-supervised part

Hi! Yes, you are correct. In the context of semi-supervised node classification, the entire graph is normally known at training but with only a subset of the labels. The way the data is organized for WikiCS, all node labels are given in a single vector, and there's separate binary vectors specifying train/val/test masks. At training time, only the labels allowed by the train mask are used.

By the way, note that this dataset (along with many others) have been included in the torch_geometric GNN library, so you might find it convenient to just load it from there: https://pytorch-geometric.readthedocs.io/en/latest/modules/datasets.html#torch_geometric.datasets.WikiCS

Cheers, Peter

On Fri, Feb 26, 2021 at 2:59 PM Benjamin Ellenberger < [email protected]> wrote:

Hello!

I am looking for graph neural network datasets with partially missing labels. As far as I understand from your paper, the WikiCS dataset can be used for node label prediction. Interpreting semi-supervised in this context, a network can use this dataset and learns from samples with and without labels. Am I right here? Assuming I am correct, I was trying to find such samples in the data, but could not find them easily, thus was a bit confused.

Thanks for your answer!

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benelot

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issue openedpmernyei/wiki-cs-dataset

Question on semi-supervised part

Hello!

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