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Shufan Li

13 accepted papers

2026

Lavida-O: Elastic Large Masked Diffusion Models for Unified Multimodal Understanding and Generation

ICLR 2026poster

We propose Lavida-O, a unified Masked Diffusion Model (MDM) for multimodal understanding and generation. Unlike existing multimodal MDMs such as MMaDa and Muddit which only support simple image-level understanding tasks and low-resolution image generation, Lavida-O presents a single framework that…

Cited by 0SourceScholar
2026

Lavida-R1: Advancing Reasoning for Unified Multimodal Diffusion Language Models

ICML 2026poster

Diffusion language models (dLLMs) recently emerged as a promising alternative to auto-regressive LLMs. The latest works further extended it to multimodal understanding and generation tasks. In this work, we propose LaViDa-R1, a multimodal, general-purpose reasoning dLLM. Unlike existing works that b…

Cited by 0SourceScholar
2026

Sparse-LaViDa: Sparse Multimodal Discrete Diffusion Language Models

CVPR 2026

Masked Discrete Diffusion Models (MDMs) have achieved strong performance across a wide range of multimodal tasks, including image understanding, generation, and editing. However, their inference speed remains suboptimal due to the need to repeatedly process redundant masked tokens at every sampling

Cited by 0SourceScholar
2025

LaViDa: A Large Diffusion Model for Vision-Language Understanding

NeurIPS 2025spotlight

Modern Vision-Language Models (VLMs) can solve a wide range of tasks requiring visual reasoning. In real-world scenarios, desirable properties for VLMs include fast inference and controllable generation (e.g., constraining outputs to adhere to a desired format). However, existing autoregressive (AR)…

Cited by 0SourcecodeScholar
2025

MedMax: Mixed-Modal Instruction Tuning for Training Biomedical Assistants

NeurIPS 2025poster

Recent advancements in mixed-modal generative have opened new avenues for developing unified biomedical assistants capable of analyzing biomedical images, answering complex questions about them, and generating multimodal patient reports. However, existing datasets face challenges such as small sizes…

Cited by 0SourcecodeScholar
2025

OmniFlow: Any-to-Any Generation with Multi-Modal Rectified Flows

CVPR 2025poster

We introduce OminiFlow, a novel generative model designed for any-to-any generation tasks such as text-to-image, text-to-audio, and audio-to-image synthesis. OminiFlow advances the rectified flow (RF) framework used in text-to-image models to handle the joint distribution of multiple modalities. It…

2025

Reflect-DiT: Inference-Time Scaling for Text-to-Image Diffusion Transformers via In-Context Reflection

ICCV 2025poster

The predominant approach to advancing text-to-image generation has been training-time scaling, where larger models are trained on more data using greater computational resources. While effective, this approach is computationally expensive, leading to growing interest in inference-time scaling to imp…

2025

SegLLM: Multi-round Reasoning Segmentation with Large Language Models

ICLR 2025poster

We present SegLLM, a novel multi-round interactive reasoning segmentation model that enhances LLM-based segmentation by exploiting conversational memory of both visual and textual outputs. By leveraging a mask-aware multimodal LLM, SegLLM re-integrates previous segmentation results into its input st…

Cited by 0SourcePDFScholar
2024

Aligning Diffusion Models by Optimizing Human Utility

NeurIPS 2024poster

We present Diffusion-KTO, a novel approach for aligning text-to-image diffusion models by formulating the alignment objective as the maximization of expected human utility. Unlike previous methods, Diffusion-KTO does not require collecting pairwise preference data nor training a complex reward model…

2024

xT: Nested Tokenization for Larger Context in Large Images

ICML 2024poster

Modern computer vision pipelines handle large images in one of two sub-optimal ways: down-sampling or cropping. These two methods incur significant losses in the amount of information and context present in an image. There are many downstream applications in which global context matters as much as h…

2023

Hierarchical Open-vocabulary Universal Image Segmentation

NeurIPS 2023poster

Open-vocabulary image segmentation aims to partition an image into semantic regions according to arbitrary text descriptions. However, complex visual scenes can be naturally decomposed into simpler parts and abstracted at multiple lev4 els of granularity, introducing inherent segmentation ambiguity.…

2023

Scale-MAE: A Scale-Aware Masked Autoencoder for Multiscale Geospatial Representation Learning

ICCV 2023oral

Large, pretrained models are commonly finetuned with imagery that is heavily augmented to mimic different conditions and scales, with the resulting models used for various tasks with imagery from a range of spatial scales. Such models overlook scale-specific information in the data for scale-depende…

Cited by 201PDFcodeScholar