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Sang-Woo Hong

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#machine learning Preprint Sep 2026

Continual Data Unlearning in Diffusion Models via Transition-based Regularization

A continual data unlearning framework that uses completed deletion transitions as directional references to regularize future updates and achieves a better balance between deletion persistence and generative utility than existing unlearning baselines as requests accumulate.

Sunbeom Jeong, Sehwan Kim, Sang-Woo Hong et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Mitigating Sequential Reappearance in Diffusion Data-Point Unlearning

A target-level evaluation protocol is introduced that tracks whether each target is forgotten immediately, remains forgotten at the end of the sequence, or reappears during subsequent deletions, and finds that targets that later reappear exhibit sharper local denoising-loss geometry after deletion than targets that rem...

Donghyun Kim, Taehyuk Lee, Jinyeong Kim et al. · 0 citations
#machine learning Preprint Aug 2026

Mechanistic Circuit Identification for Controllable Data Generation

This work proposes a circuit-grounded framework that connects training-dynamics-based data valuation with mechanistic interpretability (MI), and conceptualizes data quality along three complementary utility axes, learnability, challenge, and alignment, establishing a principled white-box paradigm for interpretable data...

Nakyung Lee, Sang-Woo Hong, Jungwoo Lee · 1 citation
Preprint Aug 2026

Function-Level Execution Feedback for Code Preference Optimization

STEP-KTODER is proposed, a framework for code preference optimization that defines steps as module-level functions in decomposed multi-function programs and assigns binary correctness labels via automatically generated unit tests and shows that execution-based labels are essential.

Idris Nechnech, Sehwan Kim, Jimin Seo et al. · 0 citations

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