activity
20242026
collaborators

10 papers

cs.CV2026

From Token Correction to Claim Admission: Training-Free Hallucination Mitigation for Large Vision-Language Models

Hyeonggeun Han, Taehyun Cho, Sangwoo Hong

Large vision-language models often exhibit object hallucination, generating claims that are not supported by the input image. To mitigate this issue, we propose Evidence-Guided Vis…

cs.LG2026

Mitigating Sequential Reappearance in Diffusion Data-Point Unlearning

Donghyun Kim, Taehyuk Lee, Jinyeong Kim +4

Diffusion data-point unlearning is typically evaluated immediately after each deletion, even though subsequent requests may repeatedly update the same model. We identify sequential…

cs.LG2026

Mechanistic Circuit Identification for Controllable Data Generation

Nakyung Lee, Sangwoo Hong, Jungwoo Lee

While recent advances in data synthesis aim to curate high-quality datasets, most generation pipelines still rely on heuristic prompt-based control. This black-box paradigm provide…

cs.AI2026

Function-Level Execution Feedback for Code Preference Optimization

Idris Nechnech, Sehwan Kim, Jimin Seo +4

Process supervision has improved mathematical reasoning, where intermediate steps are naturally expressed as chains of thought. In code generation, however, process supervision rem…

cs.RO2026

MVP-LAM: Learning Action-Centric Latent Action via Cross-Viewpoint Reconstruction

Jung Min Lee, Dohyeok Lee, Seokhun Ju +5

Latent actions learned from diverse human videos serve as pseudo-labels for vision-language-action (VLA) pretraining, but provide effective supervision only if they remain informat…

quant-ph2025

Operator-aware shadow importance sampling for accurate fidelity estimation

Hyunho Cha, Sangwoo Hong, Jungwoo Lee

Estimating the fidelity between an unknown quantum state and a fixed target is a fundamental task in quantum information science. Direct fidelity estimation (DFE) enables this with…

cs.CV2025

Adjusting Initial Noise to Mitigate Memorization in Text-to-Image Diffusion Models

Hyeonggeun Han, Sehwan Kim, Hyungjun Joo +2

Despite their impressive generative capabilities, text-to-image diffusion models often memorize and replicate training data, prompting serious concerns over privacy and copyright.…

cs.LG2025

Constructing Fair Latent Space for Intersection of Fairness and Explainability

Hyungjun Joo, Hyeonggeun Han, Sehwan Kim +2

As the use of machine learning models has increased, numerous studies have aimed to enhance fairness. However, research on the intersection of fairness and explainability remains i…

cs.LG2024

Mitigating Spurious Correlations via Disagreement Probability

Hyeonggeun Han, Sehwan Kim, Hyungjun Joo +2

Models trained with empirical risk minimization (ERM) are prone to be biased towards spurious correlations between target labels and bias attributes, which leads to poor performanc…

cs.CV2024

Mix from Failure: Confusion-Pairing Mixup for Long-Tailed Recognition

Youngseok Yoon, Sangwoo Hong, Hyungjun Joo +3

Long-tailed image recognition is a computer vision problem considering a real-world class distribution rather than an artificial uniform. Existing methods typically detour the prob…