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Multimodal large language models (MLLMs) that integrate visual and textual reasoning leverage chain-of-thought (CoT) prompting to tackle complex visual tasks, yet continue to exhibit visual hallucinations and an over-reliance on textual…

Computer Vision and Pattern Recognition · Computer Science 2025-10-24 Jing Bi , Guangyu Sun , Ali Vosoughi , Chen Chen , Chenliang Xu

Although Multimodal Large Language Models (MLLMs) have demonstrated increasingly impressive performance in chart understanding, most of them exhibit alarming hallucinations and significant performance degradation when handling non-annotated…

Computation and Language · Computer Science 2025-12-16 Xiao Zhang , Dongyuan Li , Liuyu Xiang , Yao Zhang , Cheng Zhong , Zhaofeng He

This study investigates the spatial reasoning capabilities of vision-language models (VLMs) through Chain-of-Thought (CoT) prompting and reinforcement learning. We begin by evaluating the impact of different prompting strategies and find…

Computer Vision and Pattern Recognition · Computer Science 2025-07-21 Binbin Ji , Siddharth Agrawal , Qiance Tang , Yvonne Wu

Transformer-based language models, though not explicitly trained to mimic brain recordings, have demonstrated surprising alignment with brain activity. Progress in these models-through increased size, instruction-tuning, and…

Vision encoders are indispensable for allowing impressive performance of Multi-modal Large Language Models (MLLMs) in vision language tasks such as visual question answering and reasoning. However, existing vision encoders focus on global…

Computer Vision and Pattern Recognition · Computer Science 2025-10-27 Guanghao Zheng , Bowen Shi , Mingxing Xu , Ruoyu Sun , Peisen Zhao , Zhibo Zhang , Wenrui Dai , Junni Zou , Hongkai Xiong , Xiaopeng Zhang , Qi Tian

Multimodal Large Language Models (MLLM) classification performance depends critically on evaluation protocol and ground truth quality. Studies comparing MLLMs with supervised and vision-language models report conflicting conclusions, and we…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Nikita Kisel , Illia Volkov , Klara Janouskova , Jiri Matas

Multilingual Large Language Models (LLMs) can process many languages, yet how they internally represent this diversity remains unclear. Do they form shared multilingual representations with language-specific decoding, and if so, why does…

Computation and Language · Computer Science 2026-02-10 Abir Harrasse , Florent Draye , Punya Syon Pandey , Zhijing Jin , Bernhard Schölkopf

Vision-language models (VLMs) excel at multimodal understanding, yet their text-only decoding forces them to verbalize visual reasoning, limiting performance on tasks that demand visual imagination. Recent attempts train VLMs to render…

Computer Vision and Pattern Recognition · Computer Science 2025-06-23 Zeyuan Yang , Xueyang Yu , Delin Chen , Maohao Shen , Chuang Gan

In vision-language pre-training (VLP), masked image modeling (MIM) has recently been introduced for fine-grained cross-modal alignment. However, in most existing methods, the reconstruction targets for MIM lack high-level semantics, and…

Computer Vision and Pattern Recognition · Computer Science 2024-03-04 Haowei Liu , Yaya Shi , Haiyang Xu , Chunfeng Yuan , Qinghao Ye , Chenliang Li , Ming Yan , Ji Zhang , Fei Huang , Bing Li , Weiming Hu

Multimodal large language models (MLLMs) achieve remarkable progress in cross-modal perception and reasoning, yet a fundamental question remains unresolved: should the vision encoder be fine-tuned or frozen? Despite the success of models…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Nan Zhou , Huiqun Wang , Yaoyan Zheng , Di Huang

In the realm of Sign Language Translation (SLT), reliance on costly gloss-annotated datasets has posed a significant barrier. Recent advancements in gloss-free SLT methods have shown promise, yet they often largely lag behind gloss-based…

Computer Vision and Pattern Recognition · Computer Science 2024-12-24 Han Liang , Chengyu Huang , Yuecheng Xu , Cheng Tang , Weicai Ye , Juze Zhang , Xin Chen , Jingyi Yu , Lan Xu

The recent advancements in auto-regressive multimodal large language models (MLLMs) have demonstrated promising progress for vision-language tasks. While there exists a variety of studies investigating the processing of linguistic…

Artificial Intelligence · Computer Science 2025-03-28 Zhi Zhang , Srishti Yadav , Fengze Han , Ekaterina Shutova

Large Language Models (LLMs) are pretrained on massive datasets and later instruction-tuned via supervised fine-tuning (SFT) or reinforcement learning (RL). Best practices emphasize large, diverse pretraining data, whereas post-training…

Machine Learning · Computer Science 2026-03-03 Adel Javanmard , Baharan Mirzasoleiman , Vahab Mirrokni

Multimodal Large Language Model (MLLMs) leverages Large Language Models as a cognitive framework for diverse visual-language tasks. Recent efforts have been made to equip MLLMs with visual perceiving and grounding capabilities. However,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Junwen He , Yifan Wang , Lijun Wang , Huchuan Lu , Jun-Yan He , Jin-Peng Lan , Bin Luo , Xuansong Xie

Visual deep learning (VDL) systems have shown significant success in real-world applications like image recognition, object detection, and autonomous driving. To evaluate the reliability of VDL, a mainstream approach is software testing,…

Software Engineering · Computer Science 2024-12-24 Liwen Wang , Yuanyuan Yuan , Ao Sun , Zongjie Li , Pingchuan Ma , Daoyuan Wu , Shuai Wang

The Multimodal Large Language Models (MLLMs) have activated the capabilitiesof Large Language Models (LLMs) in solving visual-language tasks by integratingvisual information. The prevailing approach in existing MLLMs involvesemploying an…

Computer Vision and Pattern Recognition · Computer Science 2024-10-31 Tianxiang Wu , Minxin Nie , Ziqiang Cao

Recent advances at the intersection of reinforcement learning (RL) and visual intelligence have enabled agents that not only perceive complex visual scenes but also reason, generate, and act within them. This survey offers a critical and…

Computer Vision and Pattern Recognition · Computer Science 2025-12-24 Weijia Wu , Chen Gao , Joya Chen , Kevin Qinghong Lin , Qingwei Meng , Yiming Zhang , Yuke Qiu , Hong Zhou , Mike Zheng Shou

While reinforcement learning (RL) demonstrated remarkable success in enhancing the reasoning capabilities of language models, the training dynamics of RL in LLMs remain unclear. In this work, we provide an explanation of the RL training…

Machine Learning · Computer Science 2025-09-30 Xingwu Chen , Tianle Li , Difan Zou

In the realms of computer vision and natural language processing, Multimodal Large Language Models (MLLMs) have become indispensable tools, proficient in generating textual responses based on visual inputs. Despite their advancements, our…

Computer Vision and Pattern Recognition · Computer Science 2025-08-15 YiFan Zhang , Yang Shi , Weichen Yu , Qingsong Wen , Xue Wang , Wenjing Yang , Zhang Zhang , Liang Wang , Rong Jin

Recent advancements in multimodal large language models (MLLM) have shown a strong ability in visual perception, reasoning abilities, and vision-language understanding. However, the visual matching ability of MLLMs is rarely studied,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-10 Yikang Zhou , Tao Zhang , Shilin Xu , Shihao Chen , Qianyu Zhou , Yunhai Tong , Shunping Ji , Jiangning Zhang , Lu Qi , Xiangtai Li