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Changhoon Kim

9 accepted papers

2025

EraseFlow: Learning Concept Erasure Policies via GFlowNet-Driven Alignment

NeurIPS 2025spotlight

Erasing harmful or proprietary concepts from powerful text‑to‑image generators is an emerging safety requirement, yet current ``concept erasure'' techniques either collapse image quality, rely on brittle adversarial losses, or demand prohibitive retraining cycles. We trace these limitations to a myo…

Cited by 0SourceScholar
2025

Not All Adapters Matter: Selective Adapter Freezing for Memory-Efficient Fine-Tuning of Language Models

NAACL 2025long

Transformer-based large-scale pre-trained models achieve great success. Fine-tuning is the standard practice for leveraging these models in downstream tasks. Among the fine-tuning methods, adapter-tuning provides a parameter-efficient fine-tuning by introducing lightweight trainable modules while ke…

Cited by 0SourcePDFScholar
2024

ECLIPSE: A Resource-Efficient Text-to-Image Prior for Image Generations

CVPR 2024poster

Text-to-image (T2I) diffusion models notably the unCLIP models (e.g. DALL-E-2) achieve state-of-the-art (SOTA) performance on various compositional T2I benchmarks at the cost of significant computational resources. The unCLIP stack comprises T2I prior and diffusion image decoder. The T2I prior model…

Cited by 21SourcePDFScholar
2024

TripletCLIP: Improving Compositional Reasoning of CLIP via Synthetic Vision-Language Negatives

NeurIPS 2024poster

Contrastive Language-Image Pretraining (CLIP) models maximize the mutual information between text and visual modalities to learn representations. This makes the nature of the training data a significant factor in the efficacy of CLIP for downstream tasks. However, the lack of compositional diversity…

2024

WOUAF: Weight Modulation for User Attribution and Fingerprinting in Text-to-Image Diffusion Models

CVPR 2024poster

The rapid advancement of generative models facilitating the creation of hyper-realistic images from textual descriptions has concurrently escalated critical societal concerns such as misinformation. Although providing some mitigation traditional fingerprinting mechanisms fall short in attributing re…

2023

Attributing Image Generative Models using Latent Fingerprints

ICML 2023poster

Generative models have enabled the creation of contents that are indistinguishable from those taken from nature. Open-source development of such models raised concerns about the risks of their misuse for malicious purposes. One potential risk mitigation strategy is to attribute generative models via…