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Lichen Bai

12 accepted papers

2026

Accelerating Diffusion Model Training under Minimal Budgets: A Condensation-Based Perspective

CVPR 2026

Diffusion models have achieved remarkable performance on a wide range of generative tasks, yet training them from scratch is notoriously resource-intensive, typically requiring millions of training images and many GPU days. Motivated by a data-centric view of this bottleneck, we adopt a condensation

Cited by 0SourcecodeScholar
2026

CRAFT: Aligning Diffusion Models with Fine-Tuning Is Easier Than You Think

CVPR 2026

Aligning Diffusion models has achieved remarkable breakthroughs in generating high-quality, human preference-aligned images. Existing techniques, such as supervised fine-tuning (SFT) and DPO-style preference optimization, have become principled tools for fine-tuning diffusion models. However, SFT re

Cited by 0SourceScholar
2026

Exploring Data-Free LoRA Transferability for Video Diffusion Models

ICML 2026poster

Video diffusion models leveraging step distillation or causal distillation have achieved remarkable performance. However, adapting existing LoRAs to these variants remains a critical challenge due to weight space mismatches. We observe that direct application leads to style degradation and structura…

Cited by 0SourceScholar
2026

Guidance Matters: Rethinking the Evaluation Pitfall for Text-to-Image Generation

ICLR 2026poster

Classifier-free guidance (CFG) has helped diffusion models achieve great conditional generation in various fields. Recently, more diffusion guidance methods have emerged with improved generation quality and human preference. However, can these emerging diffusion guidance methods really achieve solid…

Cited by 0SourceScholar
2026

Lightning Unified Video Editing via In-Context Sparse Attention

ICML 2026poster

Video editing has evolved toward In-Context Learning (ICL) paradigms, yet the resulting quadratic attention costs create a critical computational bottleneck. In this work, we propose **I**n-context **S**parse **A**ttention (**ISA**), the first experimentally lossless sparse framework tailored for IC…

Cited by 0SourceScholar
2026

Optimizing Few-Step Generation with Adaptive Matching Distillation

ICML 2026poster

Distribution Matching Distillation (DMD) is a powerful acceleration paradigm, yet its stability is often compromised in **Forbidden Zones**—regions where the real teacher provides unreliable guidance while the fake teacher exerts insufficient repulsive force. In this work, we propose a unified optim…

Cited by 0SourceScholar
2025

Efficient Visual Storytelling through Descriptive Words Distillation and Dynamic Decoding

ICASSP 2025accepted

Visual storytelling, a complex task in natural language generation, aims to create coherent and engaging narratives from a sequence of images, requiring more intricate and lengthy descriptions than typical image captioning. Current methods generally employ sophisticated modal interaction modules and…

Cited by 0SourceScholar
2025

Frozen Language Models Are Gradient Coherence Rectifiers in Vision Transformers

AAAI 2025technical

Large language models (LLMs) have demonstrated remarkable performance in multimodal tasks even with frozen LLM Block and only a few trainable parameters. However, the underlying mechanisms of how LLMs enhance multimodal performance remains unclear. In this work, we focus on the phenomenon that ``Mer…

Cited by 0SourcePDFScholar
2025

Golden Noise for Diffusion Models: A Learning Framework

ICCV 2025poster

Text-to-image diffusion model is a popular paradigm that synthesizes personalized images by providing a text prompt and a random Gaussian noise. While people observe that some noises are "golden noises" that can achieve better text-image alignment and higher human preference than others, we still la…

2025

Loss-Aware Curriculum Learning for Chinese Grammatical Error Correction

ICASSP 2025accepted

Chinese grammatical error correction (CGEC) aims to detect and correct errors in the input Chinese sentences. Recently, Pre-trained Language Models (PLMS) have been employed to improve the performance. However, current approaches ignore that correction difficulty varies across different instances an…

Cited by 0SourceScholar