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Yujin Han

9 accepted papers

2026

Routing Matters in MoE: Scaling Diffusion Transformers with Explicit Routing Guidance

ICLR 2026poster

Mixture-of-Experts (MoE) has emerged as a powerful paradigm for scaling model capacity while preserving computational efficiency. Despite its notable success in large language models (LLMs), existing attempts to apply MoE to Diffusion Transformers (DiTs) have yielded limited gains. We attribute this…

Cited by 0SourcecodeScholar
2026

Turning Internal Gap into Self-Improvement: Promoting the Generation-Understanding Unification in MLLMs

ICLR 2026poster

Although unified MLLMs aim to unify generation and understanding, they are considered to exhibit an internal gap, with understanding outperforming generation. Through large‑scale evaluation across multiple MLLMs and tasks, we confirm the widespread non‑unification of MLLMs, and demonstrate that it i…

Cited by 0SourceScholar
2025

Beyond Surface Structure: A Causal Assessment of LLMs' Comprehension ability

ICLR 2025poster

Large language models (LLMs) have shown remarkable capability in natural language tasks, yet debate persists on whether they truly comprehend deep structure (i.e., core semantics) or merely rely on surface structure (e.g., presentation format). Prior studies observe that LLMs' performance declines w…

2025

Can Diffusion Models Learn Hidden Inter-Feature Rules Behind Images?

ICML 2025poster

Despite the remarkable success of diffusion models (DMs) in data generation, they exhibit specific failure cases with unsatisfactory outputs. We focus on one such limitation: the ability of DMs to learn hidden rules between image features. Specifically, for image data with dependent features ($\math…

Cited by 1SourcePDFScholar
2025

Masked Autoencoders Are Effective Tokenizers for Diffusion Models

ICML 2025spotlight

Recent advances in latent diffusion models have demonstrated their effectiveness for high-resolution image synthesis. However, the properties of the latent space from tokenizer for better learning and generation of diffusion models remain under-explored. Theoretically and empirically, we find that i…

Cited by 8SourcePDFScholar
2025

Parallelized Autoregressive Visual Generation

CVPR 2025highlight

Autoregressive models have emerged as a powerful approach for visual generation but suffer from slow inference speed due to their sequential token-by-token prediction process. In this paper, we propose a simple yet effective approach for parallelized autoregressive visual generation that improves ge…

2024

Conformalized Semi-supervised Random Forest for Classification and Abnormality Detection

AISTATS 2024poster

The Random Forests classifier, a widely utilized off-the-shelf classification tool, assumes training and test samples come from the same distribution as other standard classifiers. However, in safety-critical scenarios like medical diagnosis and network attack detection, discrepancies between the tr…

2024

Improving Group Robustness on Spurious Correlation Requires Preciser Group Inference

ICML 2024poster

Standard empirical risk minimization (ERM) models may prioritize learning spurious correlations between spurious features and true labels, leading to poor accuracy on groups where these correlations do not hold. Mitigating this issue often requires expensive spurious attribute (group) labels or reli…

2024

Slight Corruption in Pre-training Data Makes Better Diffusion Models

NeurIPS 2024spotlight

Diffusion models (DMs) have shown remarkable capabilities in generating realistic high-quality images, audios, and videos. They benefit significantly from extensive pre-training on large-scale datasets, including web-crawled data with paired data and conditions, such as image-text and image-class p…

Cited by 6SourcePDFScholar