Graph Neural News Recommendation with Long-term and Short-term Interest Modeling
Table 4: Impact of different GNN layers of GNewsRec.
['Model', 'Adressa-1week AUC(%)', 'Adressa-1week F1(%)', 'Adressa-10week AUC(%)', 'Adressa-10week F1(%)']
We vary the number of GNN layers from 1 to 3. This is because 1-layer GNN can’t capture the higher-order relationships between users and news. Nevertheless, 3-layer GNN may bring massive noise to the model. Thus, we choose 2-layer GNN in our model GNewsRec.