This is the official Pytorch-version code of FlatGCN (Flattened Graph Convolutional Networks for Recommendation).

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Deep LearningFlatGCN
Overview

FlatGCN

This is the official Pytorch-version code of FlatGCN (Flattened Graph Convolutional Networks for Recommendation, submitted to ICASSP2022).

Requirements

python >= 3.7

pytorch == 1.9.1

pickle == 0.7.5

scikit-learn == 0.24.2

pandas == 1.3.3

numpy == 1.21.2

scipy == 1.7.1

Usage

We provide two preprocessed experimental datasets (LastFM, Yelp2018) in data folder. For the Yelp2018 dataset, because the data-mapping file (yelp2018_map.pkl) is too large to directly uploaded (exceeds git's 100M file upload limitation), we store it in Google Cloud Disk, the access link is as follows:

For LastFM dataset, you can use the following run commands (optional Meta2Vec or LightGCN embedding):

python main.py --dataset lastfmUA --emb n2v --model FlatGCN
python main.py --dataset lastfmUA --emb lgn --model FlatGCN

For Yelp2018 dataset, you need to first download the data-mapping file from the above link and place it in the data folder, then you can use the following run commands (optional Meta2Vec or LightGCN embedding):

python main.py --dataset yelp2018 --emb n2v --model FlatGCN
python main.py --dataset yelp2018 --emb lgn --model FlatGCN
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