I am currently a researcher at the Shanghai Academy of AI for Science (SAIS), and a postdoctoral researcher at the AI3 Institute, Fudan University, focusing on multimodal generative modeling and AI for Science.
I received my Ph.D. from East China University of Science and Technology (ECUST) in 2024, with dozens of honors.
My current research interests include multimodal learning, agentic AI, and visual content generation, particularly image and video generation.
I am always open to long-term collaboration and discussions on fundamental and applied research in multimodal learning and generative models. Here is my CV; feel free to contact me about potential opportunities.
Looking for self-motivated research interns working on visual generation and multimodal learning. Please email me at [email protected] if interested.
[09/2026]
Our paper Diff-Aid was accepted to NeurIPS 2026. Congratulations to all co-authors!
[08/2026]
We released DiverseDiT++, which quantifies and promotes representation diversity in diffusion transformers.
[07/2026]
Our paper TexTailor was accepted to ECCV 2026. Congratulations to all co-authors!
[05/2026]
Our paper SIPO was accepted to ICML 2026. Congratulations to all co-authors!
[02/2026]
Our paper on representation learning for diffusion transformers, DiverseDiT, was accepted to CVPR 2026. Congratulations to all co-authors!
[01/2026]
We released Omni-Video 2, a flexible framework for unified video modeling.
[01/2026]
Two papers about video generation post training, Dual-IPO, and unified multimodal CoT, Uni-CoT, got accepted by ICLR 2026, congrats to co-authors.
[06/2025]
One paper, FreeCus got accepted by ICCV 2025, congrats to co-authors.
[06/2025]
I was recognized as one of the Outstanding Reviewers for CVPR 2025 (711/12593).
[03/2025]
Check out our video captioning work Cockatiel, which ranks top1 on the VDC leaderboard.
[01/2025]
Finally, our survey paper on image synthesis under limited data got accepted by IJCV.
[12/2024]
One collabrated paper got accepted by TNNLS, congrats to co-authors.
[10/2024]
I write about multimodal learning and visual generation in my blog, with shorter research notes collected in thoughts.
[07/2024]
One paper about Evaluating text-to-image diffusion models released to ArXiv.
[07/2024]
One paper about LLM-driven text-to-image diffusion models got accepted by ECCV-2024.
[06/2024]
Honored to present our gratitude to ECUST, on behalf of all graduates News.
[05/2024]
Finally completed my Ph.D degree from ECUST (got all As for blind review and an average of 92.8 for thesis defence), and won the Outstanding Graduates of Shanghai.
[03/2024]
Three collabrated paper respectively got accepted by CVPR-2024 (Oral, 3%), PR, EAAI, congrats to co-authors.
[01/2024]
Honored to win the grand prize of president's scholarship (one student per year).
[10/2023]
One collabrated paper got accepted by KBS, congrats to co-authors.
[09/2023]
One paper got accepted by NeurIPS Datasets and Benchmarks Track, many thanks to my collabrators!
[09/2023]
One paper got accepted by EAAI.
[08/2023]
One survey paper on image synthesis under limited data released to ArXiv.
[07/2023]
Two papers got accepted by ACM Multimedia 2023.
[04/2023]
One paper on evaluating synthesis quality released to ArXiv.
[03/2023]
One paper got accepted by Information Sciences.
[07/2022]
One paper got accepted by ECCV 2022.
This is my first first-authored top-tier conference paper!
[05/2022]
One paper got accepted by IJCAI 2022.
Publications
* Corresponding author, † Equal contributions.
Exploring Attention Sinks in Text-to-Image Transformers from Diffusion and Autoregressive Models
Binglei Li, Mengping Yang (Project Lead), Zhiyu Tan, Wenxu Qian, Junping Zhang*, Hao Li*
arXiv Preprint 2026
[PDF][BibTeX]
We systematically study attention sinks in bidirectional diffusion and causal autoregressive text-to-image transformers, revealing architecture- and stage-dependent patterns through targeted interventions and register-token experiments.
We present Diff-Aid, a plug-in module for rectified text-to-image diffusion transformers that adaptively adjusts block-wise interactions between token-level textual conditions across denoising trajectories.
DiverseDiT++: Quantifying, Analyzing, and Promoting Representation Diversity in Diffusion Transformers
Binglei Li, Mengping Yang (Project Lead), Zhiyu Tan, Xiaomeng Yang, Zhizhong Huang, Junping Zhang*, Hao Li*
arXiv Preprint 2026
[PDF][BibTeX]
We introduce the Weighted Diversity Score to quantify block-wise representation diversity and propose DiverseDiT++, which improves diffusion transformer training across image generation, protein inverse folding, and 3D molecule generation.
We propose TexTailor, an inference-time method that tailors block-wise textual guidance in MMDiTs to improve text-image alignment while enabling precise editing and accelerated inference.
We propose SIPO, a timestep-aware preference optimization framework that stabilizes diffusion alignment through gradient clipping and masking with importance reweighting, consistently improving image and video generation models.
DiverseDiT: Towards Diverse Representation Learning in Diffusion Transformers Mengping Yang, Zhiyu Tan, Binglei Li, Xiaomeng Yang, Hesen Chen, Hao Li*
CVPR 2026
[PDF][BibTeX][Code]
We propose DiverseDiT, an efficient framework that enhances representation diversity with long residual connections and a representation diversity loss, without relying on external guidance.
We present Omni-Video 2, a scalable and computationally efficient model that connects pretrained multimodal large-language models (MLLMs) with video diffusion models for unified video generation and editing. Our key idea is to exploit the understanding and reasoning capabilities of MLLMs to produce explicit target captions to interpret user instructions.
We present Omni-Video, an efficient and effective unified framework for video understanding, generation, as well as instruction-based editing. Our key insight is to teach existing multimodal large language models (MLLMs) to produce continuous visual clues that are used as the input of diffusion decoders, which produce high-quality videos conditioned on these visual clues.
Uni-CoT: Towards Unified Chain-of-Thought Reasoning Across Text and Vision
Luozheng Qin†, Jia Gong†, Yuqing Sun†, Tianjiao Li, Haoyu Pan, Mengping Yang, Xiaomeng Yang, Chao Qu, Zhiyu Tan*, Hao Li*
ICLR 2026,
[PDF][BibTeX][Code]
We introduce Uni-CoT, a unified reasoning framework that extends CoT principles to the multimodal domain, empowering Multimodal Large Language Models (MLLMs) to perform interpretable, step-by-step reasoning across both text and vision.
We introduce Dual-Iterative Optimiza tion (Dual-IPO), an iterative paradigm that sequentially optimizes both the reward model and the video generation model for improved synthesis quality and human preference alignment. For the reward model, our framework ensures reliable and robust reward signals via CoT-guided reasoning, voting-based self-consistency, and preference certainty estimation.
We propose FreeCus, a training-free framework for zero-shot subject-driven image generation using diffusion transformers (DiTs). The method introduces three innovations: (1) pivotal attention sharing (PAS) to preserve subject layout while maintaining editability, (2) adjusted noise shifting (ANS) to enhance fine-grained detail extraction, and (3) semantic feature compensation (SFC) via multimodal LLMs to address missing attributes.
Cockatiel: Ensembling Synthetic and Human Preferenced Training for Detailed Video Caption
Luozheng Qin, Zhiyu Tan, Mengping Yang (Colead the work with ZY), Xiaomeng Yang, Hao Li*
Arxiv 2025,
[PDF][Project & Code][BibTeX]
We develop Cockatiel, a three stage training pipeline which assembles the advantages of multiple video-detailed caption (VDC) models and human preferences by conduct ing ensembling synthetic and human preference training on VDC models based on our caption quality scorer.
An Empirical Study and Analysis of Text-to-Image Generation Using Large Language Model-Powered Textual Representation
Zhiyu Tan, Mengping Yang, Luozheng Qin, Hao Yang, Ye Qian, Qiang Zhou, Cheng Zhang, Hao Li*
ECCV 2024,
[PDF][Project][BibTeX]
We propose an effective approach for incorporating LLMs into text-to-image diffusion models, improving the awareness of LLMs towards the CLIP visual and textual space, thus facilitating more expressive language understanding. Moreover, we devise an efficient three-stage training pipeline that accomplish fast adaptation of LLM textual features with a small amount of resources, serving as an strong baseline of integrating LLMs into diffusion models and paving the way of this important topic.
We propose an attention calibration mechanism to improve the concept-level understanding of the T2I model. Specifically, we first introduce new learnable modifiers bound with classes to capture attributes of multiple concepts. Then, the classes are separated and strengthened following the activation of the cross-attention operation, ensuring comprehensive and self-contained concepts. Additionally, we suppress the attention activation of different classes to mitigate mutual influence among concepts.
Revisiting the Evaluation of Image Synthesis with GANs Mengping Yang†, Ceyuan Yang†, Yichi Zhang, Qingyan Bai, Yujun Shen, Bo Dai
NeruIPS Datasets and Benchmarks 2023,
[PDF][BibTeX]
We make in-depth analyses on how to represent a data point in the feature space, how to calculate a fair distance using selected samples, and how many instances to use from each set.
Together with these analysis, we build a comprehensive system for synthesis comparison, providing reliable and consistent ranks for unsupervised image generation models including GANs and Diffusion Models.
Image Synthesis under Limited Data: A Survey and Taxonomy Mengping Yang, Zhe Wang*
IJCV 2025,
[PDF][Project][BibTeX]
We provide a comprehensive survey on image synthesis under limited data, including data-efficient generative modeling, few-shot generative adaptation, few-shot and one-shot image synthesis.
Improving Few-shot Image Generation by Structural Discrimination and Textural Modulation Mengping Yang, Zhe Wang*, Wenyi Feng, Qian Zhang, Ting Xiao
ACM MM 2023,
[PDF][Project][BibTeX]
We propose textural modulation (TexMod) and strctural discriminator (StructD) for improving the performance of few-shot image generaion.
Semantic-Aware Generator and Low-level Feature Augmentation for Few-shot Image Generation
Zhe Wang*, Jiaoyan Guan, Mengping Yang (Project Lead), Ting Xiao, Ziqiu Chi
ACM MM 2023,
[PDF][BibTeX]
We propose semantic-aware generator (SAG) and low-level feature augmentation (LFA) for improving the performance of few-shot image generaion.
ProtoGAN: Towards high diversity and fidelity image synthesis under limited data Mengping Yang, Zhe Wang, Ziqiiu Chi, Wenli Du
InS 2023,
[PDF][BibTeX]
we propose ProtoGAN, a GAN that incorporates the metric-learning-based prototype mechanism into adversarial learning by aligning the prototypes and features of synthesized distribution and the real distribution.
DFSGAN: Introducing editable and representative attributes for few-shot image generation Mengping Yang, Saisai Niu, Zhe Wang, Dongdong Li, Wenli Du
EAAI 2023,
[PDF][BibTeX]
we propose DFSGAN for few-shot image generation, which takes dynamic Gaussian mixture (DGM) latent codes as the generator’s input.
FreGAN: Exploiting Frequency Components for Training GANs under Limited Data Mengping Yang, Zhe Wang, Ziqiu Chi, Yanbing Zhang
NeurIPS 2022,
[PDF][Project][BibTeX]
We propose a frequency-aware model for training GANs under limited data, facilitating high-quality few-shot image syntheisi.
WaveGAN: Frequency-Aware GAN for High-Fidelity Few-Shot Image Generation Mengping Yang, Zhe Wang, Ziqiu Chi, Yanbing Zhang
ECCV 2022,
[PDF][Project][BibTeX]
We propose a frequency-aware model for few-shot image generation, enabling high-fidelity synthesis for downstream tasks.
Better Embedding and More Shots for Few-shot Learning
Ziqiu Chi, Zhe Wang, Mengping Yang, Wei Guo, Xinlei Xu
IJCAI 2022,
[PDF]
We develop Better Embedding and More Shots to address the distorted embedding of target data in few-shot learning.
Experiences
Research Intern on Generative Models
Mentor: Dr. Ceyuan Yang and Dr. Bo Dai
Timeline: 2022.07 - 2023.07
Established and studied evaluation protocols for generative models, contributing research papers, patents, open-source models, and code management.
Explored fundamental problems in GAN- and diffusion-based image, video, and 3D generation, while coordinating and mentoring research interns.
Published work on generative model evaluation at NeurIPS D&B 2023 and delivered a text-to-video generation demo at WAIC.
Research Intern on Large-scale Generative Models
Mentor: Prof. Hao Li
Timeline: 2023.11 - 2024.05
Trained large-scale text-to-image diffusion models with LLM-powered textual representations, including high-aesthetic data curation, caption construction, and model fine-tuning.
Fine-tuned multimodal large language models with human-aligned evaluation data and benchmarked more than 15 text-to-image models across multiple quality dimensions.
Investigated VAE compression, end-to-end diffusion transformer training, and video caption quality; related work was published at ECCV 2024 and released as EvalAlign.
Algorithm Researcher on Multimodal Learning
Team Lead: Xiaowei Guo
Timeline: 2024.07 - 2025.06
Developed and deployed domain-adapted multimodal large language models, including InternVL and Qwen-series models, for product authentication.
Fine-tuned visual grounding and segmentation models such as SAM, SEEM, and PixelLLM for region-level localization, segmentation, and fine-grained comparison of authentic and counterfeit goods.
Built retrieval-augmented visual comparison pipelines to improve the recall of counterfeit products and non-original accessories, alongside production services and business-oriented optimization.
Researcher on Multimodal Generative Modeling and AI for Science
Timeline: 2025.07 - Present (Internship available)
Conducting fundamental and applied research in image and video generation, multimodal understanding and reasoning, diffusion model alignment, and model interpretability.
Developing unified video generation and editing frameworks such as Omni-Video, together with multimodal reasoning and post-training methods.
Studying preference alignment and representation learning through SIPO, DiverseDiT++, and related work on diffusion transformer analysis and enhancement.
Extending generative modeling principles to AI for Science applications, including protein inverse folding and 3D molecule generation.
Selected Honors & Awards
Outstanding Graduate of Shanghai (top~1%),
2024
Grand prize of president's scholarship (校长奖学金特等奖, one student per year),
2023
First Class Scholarship of Graduate,
2019-2024
Shanghai Sparkling Youth (上海市闪光青年, 100 recipients across Shanghai),
2022
Suzhou Industrial Park Scholarship,
2022
Jiangxi Building Material Scholarship,
2021
Chinese College Student of the Year (中国大学生年度人物, 20 recipients nationwide per year),
2020
Shanghai College Student of the Year (上海大学生年度人物, 10 recipients in Shanghai per year),
2020
Second Prize of Mathematics Competition of Chinese Graduate Students,
2020
ECUST Student of the Year (校大学生年度人物, 10 recipients per year),
2019
Chinese College Student Self-Improvement Star (中国大学生自强之星),