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# Relational-GCN
* Paper: [Modeling Relational Data with Graph Convolutional Networks](https://arxiv.org/abs/1703.06103)
* Author's code for entity classification: [https://github.com/tkipf/relational-gcn](https://github.com/tkipf/relational-gcn)
* Author's code for link prediction: [https://github.com/MichSchli/RelationPrediction](https://github.com/MichSchli/RelationPrediction)
### Dependencies
- rdflib
- torchmetrics 0.11.4
Install as follows:
```bash
pip install rdflib
pip install torchmetrics==0.11.4
```
How to run
-------
### Entity Classification
Run with the following for entity classification (available datasets: aifb (default), mutag, bgs, and am)
```bash
python3 entity.py --dataset aifb
```
For mini-batch training, run with the following (available datasets are the same as above)
```bash
python3 entity_sample.py --dataset aifb
```
For multi-gpu training (with sampling), run with the following (same datasets and GPU IDs separated by comma)
```bash
python3 entity_sample_multi_gpu.py --dataset aifb --gpu 0,1
```
### Link Prediction
Run with the following for link prediction on dataset FB15k-237 with filtered-MRR
```bash
python link.py
```
> **_NOTE:_** By default, we use uniform edge sampling instead of neighbor-based edge sampling as in [author's code](https://github.com/MichSchli/RelationPrediction). In practice, we find that it can achieve similar MRR.
Summary
-------
### Entity Classification
| Dataset | Full-graph | Mini-batch
| ------------- | ------- | ------
| aifb | ~0.85 | ~0.82
| mutag | ~0.70 | ~0.50
| bgs | ~0.86 | ~0.64
| am | ~0.78 | ~0.42
### Link Prediction
| Dataset | Best MRR
| ------------- | -------
| FB15k-237 | ~0.2397