Qiyu Li

Relaxed Graph Semi-Supervised Contrastive Learning for Node Classification

2023

Graph Neural Networks (GNNs) have emerged as promising tools in graph semi-supervised learning. They acquire low-dimensional node embeddings for downstream tasks by aggregating and updating features from neighboring nodes. However, in a semi-supervised setting, the …

Moderator: Moderating Text-to-Image Diffusion Models through Fine-grained Context-based Policies

2024

We present Moderator, a policy-based model management system that allows administrators to specify fine-grained content moderation policies and modify the weights of a text-to-image (TTI) model to make it significantly more challenging for users to …