Lightcn里为什么是获取权重而不是嵌入

[primising]

`def get_ego_embeddings(self):
r"""Get the embedding of users and items and combine to an embedding matrix.

    Returns:
        Tensor of the embedding matrix. Shape of [n_items+n_users, embedding_dim]
    """
    user_embeddings = self.user_embedding.weight
    item_embeddings = self.item_embedding.weight
    ego_embeddings = torch.cat([user_embeddings, item_embeddings], dim=0)
    return ego_embeddings