activity
20242026
collaborators

5 papers

cs.CL2026

Early Decisions Matter: Proximity Bias and Initial Trajectory Shaping in Non-Autoregressive Diffusion Language Models

Jiyeon Kim, Sungik Choi, Yongrae Jo +2

Diffusion-based language models (dLLMs) have emerged as a promising alternative to autoregressive language models, offering the potential for parallel token generation and bidirect…

cs.CV2026

HFI: A unified framework for training-free detection and implicit watermarking of latent diffusion model generated images

Sungik Choi, Hankook Lee, Jaehoon Lee +3

Dramatic advances in the quality of the latent diffusion models (LDMs) also led to the malicious use of AI-generated images. While current AI-generated image detection methods assu…

cs.CV2025

Training-free Detection of AI-generated images via Cropping Robustness

Sungik Choi, Hankook Lee, Moontae Lee

AI-generated image detection has become crucial with the rapid advancement of vision-generative models. Instead of training detectors tailored to specific datasets, we study a trai…

cs.CV2025

Diffusion based Semantic Outlier Generation via Nuisance Awareness for Out-of-Distribution Detection

Suhee Yoon, Sanghyu Yoon, Ye Seul Sim +5

Out-of-distribution (OOD) detection, which determines whether a given sample is part of the in-distribution (ID), has recently shown promising results through training with synthet…

cs.AI2024

Partial-Multivariate Model for Forecasting

Jaehoon Lee, Hankook Lee, Sungik Choi +2

When solving forecasting problems including multiple time-series features, existing approaches often fall into two extreme categories, depending on whether to utilize inter-feature…