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Chun Chen

11 accepted papers

2026

DICE: Distilling Classifier-Free Guidance into Text Embeddings

AAAI 2026technical

Text-to-image diffusion models are capable of generating high-quality images, but suboptimal pre-trained text representations often result in these images failing to align closely with the given text prompts. Classifier-free guidance (CFG) is a popular and effective technique for improving text-imag

Cited by 0SourcePDFScholar
2025

Advancing Loss Functions in Recommender Systems: A Comparative Study with a Rényi Divergence-Based Solution

AAAI 2025technical

Loss functions play a pivotal role in optimizing recommendation models. Among various loss functions, Softmax Loss (SL) and Cosine Contrastive Loss (CCL) are particularly effective. Their theoretical connections and differences warrant in-depth exploration. This work conducts comprehensive analyses…

2025

Knowledge Distillation with Refined Logits

ICCV 2025poster

Recent research on knowledge distillation has increasingly focused on logit distillation because of its simplicity, effectiveness, and versatility in model compression. In this paper, we introduce Refined Logit Distillation (RLD) to address the limitations of current logit distillation methods. Our…

2024

Fast ODE-based Sampling for Diffusion Models in Around 5 Steps

CVPR 2024highlight

Sampling from diffusion models can be treated as solving the corresponding ordinary differential equations (ODEs) with the aim of obtaining an accurate solution with as few number of function evaluations (NFE) as possible. Recently various fast samplers utilizing higher-order ODE solvers have emerge…

2024

PSL: Rethinking and Improving Softmax Loss from Pairwise Perspective for Recommendation

NeurIPS 2024poster

Softmax Loss (SL) is widely applied in recommender systems (RS) and has demonstrated effectiveness. This work analyzes SL from a pairwise perspective, revealing two significant limitations: 1) the relationship between SL and conventional ranking metrics like DCG is not sufficiently tight; 2) SL is h…

2024

Simple and Fast Distillation of Diffusion Models

NeurIPS 2024poster

Diffusion-based generative models have demonstrated their powerful performance across various tasks, but this comes at a cost of the slow sampling speed. To achieve both efficient and high-quality synthesis, various distillation-based accelerated sampling methods have been developed recently. Howeve…

2023

OpenGSL: A Comprehensive Benchmark for Graph Structure Learning

NeurIPS 2023poster

Graph Neural Networks (GNNs) have emerged as the *de facto* standard for representation learning on graphs, owing to their ability to effectively integrate graph topology and node attributes. However, the inherent suboptimal nature of node connections, resulting from the complex and contingent forma…

2023

Robust Sequence Networked Submodular Maximization

AAAI 2023technical

In this paper, we study the Robust optimization for sequence Networked submodular maximization (RoseNets) problem. We interweave the robust optimization with the sequence networked submodular maximization. The elements are connected by a directed acyclic graph and the objective function is not subm…

Cited by 0SourcePDFScholar
2022

Knowledge Distillation With the Reused Teacher Classifier

CVPR 2022poster

Knowledge distillation aims to compress a powerful yet cumbersome teacher model into a lightweight student model without much sacrifice of performance. For this purpose, various approaches have been proposed over the past few years, generally with elaborately designed knowledge representations, whic…

Cited by 246PDFcodeScholar
2021

Cross-Layer Distillation with Semantic Calibration

AAAI 2021technical

Recently proposed knowledge distillation approaches based on feature-map transfer validate that intermediate layers of a teacher model can serve as effective targets for training a student model to obtain better generalization ability. Existing studies mainly focus on particular representation forms…