Sang‐Wook Kim

Linear, or Non-Linear, That is the Question!

2021 · arXiv (Cornell University)

There were fierce debates on whether the non-linear embedding propagation of GCNs is appropriate to GCN-based recommender systems. It was recently found that the linear embedding propagation shows better accuracy than the non-linear embedding propagation. …

<scp>HyGEN</scp> : Regularizing Negative Hyperedge Generation for Accurate Hyperedge Prediction

2025

Hyperedge prediction is a fundamental task to predict future high-order relations based on the observed network structure. Existing hyperedge prediction methods, however, suffer from the data sparsity problem. To alleviate this problem, negative sampling methods …

CFGAN

2018

Generative Adversarial Networks (GAN) have achieved big success in various domains such as image generation, music generation, and natural language generation. In this paper, we propose a novel GAN-based collaborative filtering (CF) framework to provide …