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Masked Diffusion Models (MDMs) offer a promising alternative to autoregressive language models by enabling parallel token generation and bidirectional context modeling. However, their inference speed is significantly limited by the…

机器学习 · 计算机科学 2026-04-08 Satyam Goyal , Kushal Patel , Tanush Mittal , Arjun Laxman

Recent endeavors in Multimodal Large Language Models (MLLMs) aim to unify visual comprehension and generation by combining LLM and diffusion models, the state-of-the-art in each task, respectively. Existing approaches rely on spatial visual…

计算机视觉与模式识别 · 计算机科学 2025-04-22 Kaihang Pan , Wang Lin , Zhongqi Yue , Tenglong Ao , Liyu Jia , Wei Zhao , Juncheng Li , Siliang Tang , Hanwang Zhang

Diffusion language models (dLMs) have emerged as a promising paradigm that enables parallel, non-autoregressive generation, but their learning efficiency lags behind that of autoregressive (AR) language models when trained from scratch. To…

Large vision-language models (LVLMs) often hallucinate content that is fluent yet unsupported by the image, limiting their reliability in real-world deployment. We show that a key failure mode arises from route competition: even when visual…

计算机视觉与模式识别 · 计算机科学 2026-05-26 Zhe Cheng , Wenyu Chen , Fode Zhang , Dehuan Shen

Diffusion-based multimodal large language models (dMLLMs) decode by iteratively predicting tokens at multiple masked positions in parallel. This turns each decoding step into a position-selection problem: the model must choose not only…

机器学习 · 计算机科学 2026-05-26 Yulin Yuan , Hongshuo Zhao , Xiangming Meng

In this work, we provide a systematic survey of Discrete Diffusion Language Models (dLLMs) and Discrete Diffusion Multimodal Language Models (dMLLMs). Unlike autoregressive (AR) models, dLLMs and dMLLMs adopt a multi-token, parallel…

机器学习 · 计算机科学 2025-09-22 Runpeng Yu , Qi Li , Xinchao Wang

Multimodal Diffusion Large Language Models (MDLLMs) achieve high-concurrency generation through parallel masked decoding, yet the architectures remain prone to multimodal hallucinations. This structural vulnerability stems from an…

计算机视觉与模式识别 · 计算机科学 2026-03-27 Vishal Narnaware , Animesh Gupta , Kevin Zhai , Zhenyi Wang , Mubarak Shah

Despite the great success of Large Vision-Language Models (LVLMs), they inevitably suffer from hallucination. As we know, both the visual encoder and the Large Language Model (LLM) decoder in LVLMs are Transformer-based, allowing the model…

计算与语言 · 计算机科学 2025-11-07 Xuan Gong , Tianshi Ming , Xinpeng Wang , Zhihua Wei

Multimodal Large Language Models (MLLMs) are increasingly applied to pixel-level vision tasks, yet their intrinsic capacity for spatial understanding remains poorly understood. We investigate segmentation capacity through a layerwise linear…

计算机视觉与模式识别 · 计算机科学 2026-03-19 Boyong Wu , Sanghwan Kim , Zeynep Akata

Large Vision-Language Models (LVLMs) have achieved impressive progress in multimodal reasoning, yet they remain prone to object hallucinations, generating descriptions of objects that are not present in the input image. Recent approaches…

计算机视觉与模式识别 · 计算机科学 2026-04-07 Sohyeon Kim , Sang Yeon Yoon , Kyeongbo Kong

Current Video Large Language Models (Video LLMs) typically encode frames via a vision encoder and employ an autoregressive (AR) LLM for understanding and generation. However, this AR paradigm inevitably faces a dual efficiency bottleneck:…

计算机视觉与模式识别 · 计算机科学 2026-01-30 Zhihao He , Tieyuan Chen , Kangyu Wang , Ziran Qin , Yang Shao , Chaofan Gan , Shijie Li , Zuxuan Wu , Weiyao Lin

Vision-Language Models often struggle with complex visual reasoning due to the visual information loss in textual CoT. Existing methods either add the cost of tool calls or rely on localized patch-based embeddings that are insufficient to…

计算与语言 · 计算机科学 2026-04-10 Mengdan Zhu , Senhao Cheng , Liang Zhao

Masked diffusion language models enable parallel token generation and offer improved decoding efficiency over autoregressive models. However, their performance degrades significantly when generating multiple tokens simultaneously, due to a…

计算与语言 · 计算机科学 2026-05-12 Houxing Ren , Mingjie Zhan , Zimu Lu , Ke Wang , Yunqiao Yang , Haotian Hou , Junting Pan , Hongsheng Li

Multimodal Chain-of-Thought (MCoT) models have demonstrated impressive capability in complex visual reasoning tasks. Unfortunately, recent studies reveal that they suffer from severe hallucination problems due to diminished visual attention…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Ji Ma , Wei Suo , Peng Wang , Yanning Zhang

Multimodal Large Language Models often suffer from object hallucination. While existing research utilizes attention enhancement and visual retracing, we find these works lack sufficient interpretability regarding attention drift in final…

计算机视觉与模式识别 · 计算机科学 2026-03-27 Chengxu Yang , Jingling Yuan , Chuang Hu , Jiawei Jiang

Embedding models are a fundamental component of modern AI systems such as semantic search and retrieval-augmented generation. Recent advances in large foundation models have substantially accelerated the development of embedding models,…

多媒体 · 计算机科学 2026-02-09 Zihang Wang , Siyue Zhang , Yilun Zhao , Jingyi Yang , Tingyu Song , Anh Tuan Luu , Chen Zhao

Vision-Language Models (VLMs) have achieved remarkable progress in multimodal reasoning and generation, yet their high computational demands remain a major challenge. Diffusion Vision-Language Models (DVLMs) are particularly attractive…

计算机视觉与模式识别 · 计算机科学 2025-11-18 Jingqi Xu , Jingxi Lu , Chenghao Li , Sreetama Sarkar , Souvik Kundu , Peter A. Beerel

Masked diffusion models (MDMs) are a potential alternative to autoregressive models (ARMs) for language generation, but generation quality depends critically on the generation order. Prior work either hard-codes an ordering (e.g., blockwise…

机器学习 · 计算机科学 2026-05-22 Chunsan Hong , Sanghyun Lee , Jong Chul Ye

Despite the rapid evolution of training paradigms, the decoder backbone of large vision--language models (LVLMs) remains fundamentally rooted in the residual-connection Transformer architecture. Therefore, deciphering the distinct roles of…

人工智能 · 计算机科学 2026-05-08 Gongli Xi , Ye Tian , Mengyu Yang , Huahui Yi , Liang Lin , Xiaoshuai Hao , Kun Wang , Wendong Wang

The iterative denoising paradigm of Diffusion Large Language Models (DLMs) endows them with a distinct advantage in global context modeling. However, current decoding strategies fail to leverage this capability, typically exhibiting a local…

计算与语言 · 计算机科学 2026-05-05 Jinyuan Feng , Xin Yu , Yiqun Chen , Xiaochi Wei , Yan Gao , Yi Wu , Yao Hu , Zhiqiang Pu