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Multimodal large language models (MLLMs) trained with visual instruction tuning have achieved strong performance across diverse tasks, yet they remain limited in vision-centric tasks such as object counting or spatial reasoning. We…

Enhancing reasoning in Large Multimodal Models (LMMs) faces unique challenges from the complex interplay between visual perception and logical reasoning, particularly in compact 3B-parameter architectures where architectural constraints…

计算与语言 · 计算机科学 2025-03-12 Yingzhe Peng , Gongrui Zhang , Miaosen Zhang , Zhiyuan You , Jie Liu , Qipeng Zhu , Kai Yang , Xingzhong Xu , Xin Geng , Xu Yang

Large language models are extensively utilized in creative writing applications. Creative writing requires a balance between subjective writing quality (e.g., literariness and emotional expression) and objective constraint following (e.g.,…

人工智能 · 计算机科学 2025-08-29 Jianxing Liao , Tian Zhang , Xiao Feng , Yusong Zhang , Rui Yang , Haorui Wang , Bosi Wen , Ziying Wang , Runzhi Shi

Personalized text-to-image models allow users to generate varied styles of images (specified with a sentence) for an object (specified with a set of reference images). While remarkable results have been achieved using diffusion-based…

计算机视觉与模式识别 · 计算机科学 2024-07-19 Fanyue Wei , Wei Zeng , Zhenyang Li , Dawei Yin , Lixin Duan , Wen Li

We present a novel visual instruction tuning strategy to improve the zero-shot task generalization of multimodal large language models by building a firm text-only knowledge base. Existing work lacks sufficient experimentation on the…

In this work, we investigate how to leverage pre-trained visual-language models (VLM) for online Reinforcement Learning (RL). In particular, we focus on sparse reward tasks with pre-defined textual task descriptions. We first identify the…

机器学习 · 计算机科学 2024-06-06 Yuwei Fu , Haichao Zhang , Di Wu , Wei Xu , Benoit Boulet

Feature transformation enhances downstream task performance by generating informative features through mathematical feature crossing. Despite the advancements in deep learning, feature transformation remains essential for structured data,…

机器学习 · 计算机科学 2026-03-02 Tao Zhe , Huazhen Fang , Kunpeng Liu , Qian Lou , Tamzidul Hoque , Dongjie Wang

Vision-language fine-tuning has emerged as an efficient paradigm for constructing multimodal foundation models. While textual context often highlights semantic relationships within an image, existing fine-tuning methods typically overlook…

计算机视觉与模式识别 · 计算机科学 2025-11-14 Xiangyang Wu , Liu Liu , Baosheng Yu , Jiayan Qiu , Zhenwei Shi

The challenge in fine-grained visual categorization lies in how to explore the subtle differences between different subclasses and achieve accurate discrimination. Previous research has relied on large-scale annotated data and pre-trained…

计算机视觉与模式识别 · 计算机科学 2024-05-16 Tianxu Wu , Shuo Ye , Shuhuang Chen , Qinmu Peng , Xinge You

With the recent progress in large-scale vision and language representation learning, Vision Language Pre-training (VLP) models have achieved promising improvements on various multi-modal downstream tasks. Albeit powerful, these models have…

计算机视觉与模式识别 · 计算机科学 2023-08-08 Jiahua Rao , Zifei Shan , Longpo Liu , Yao Zhou , Yuedong Yang

Reinforcement Learning has significantly advanced the reasoning capabilities of Multimodal Large Language Models (MLLMs), yet the resulting policies remain brittle against real-world visual degradations such as blur, compression artifacts,…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Rui Liu , Dian Yu , Haolin Liu , Yucheng Shi , Tong Zheng , Runpeng Dai , Haitao Mi , Pratap Tokekar , Leoweiliang

Multi-Task Learning (MTL) is designed to train multiple correlated tasks simultaneously, thereby enhancing the performance of individual tasks. Typically, a multi-task network structure consists of a shared backbone and task-specific…

计算机视觉与模式识别 · 计算机科学 2023-12-15 Yi Xin , Junlong Du , Qiang Wang , Ke Yan , Shouhong Ding

Pre-trained vision-language models (VLMs), such as CLIP, have demonstrated impressive capability in visual tasks, but their fine-tuning often suffers from bias in class-imbalanced scene. Recent works have introduced large language models…

计算机视觉与模式识别 · 计算机科学 2025-08-22 Yongju Jia , Jiarui Ma , Xiangxian Li , Baiqiao Zhang , Xianhui Cao , Juan Liu , Yulong Bian

Effectively retrieving, reasoning and understanding visually rich information remains a challenge for RAG methods. Traditional text-based methods cannot handle visual-related information. On the other hand, current vision-based RAG…

计算与语言 · 计算机科学 2025-06-04 Qiuchen Wang , Ruixue Ding , Yu Zeng , Zehui Chen , Lin Chen , Shihang Wang , Pengjun Xie , Fei Huang , Feng Zhao

While state-of-the-art vision-language models (VLMs) have demonstrated remarkable capabilities in complex visual-text tasks, their success heavily relies on massive model scaling, limiting their practical deployment. Small-scale VLMs offer…

计算机视觉与模式识别 · 计算机科学 2025-03-11 Huilin Deng , Ding Zou , Rui Ma , Hongchen Luo , Yang Cao , Yu Kang

Text-to-video (T2V) generation technology holds potential to transform multiple domains such as education, marketing, entertainment, and assistive technologies for individuals with visual or reading comprehension challenges, by creating…

图形学 · 计算机科学 2025-10-07 Nilay Kumar , Priyansh Bhandari , G. Maragatham

Reward design is of great importance for solving complex tasks with reinforcement learning. Recent studies have explored using image-text similarity produced by vision-language models (VLMs) to augment rewards of a task with visual…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Lirui Luo , Guoxi Zhang , Hongming Xu , Yaodong Yang , Cong Fang , Qing Li

Recent advances in multimodal reward modeling have been largely driven by a paradigm shift from discriminative to generative approaches. Building on this progress, recent studies have further employed reinforcement learning from verifiable…

计算机视觉与模式识别 · 计算机科学 2026-03-27 Chenglong Wang , Yifu Huo , Yang Gan , Qiaozhi He , Qi Meng , Bei Li , Yan Wang , Junfu Liu , Tianhua Zhou , Jingbo Zhu , Tong Xiao

Diffusion models and flow matching have demonstrated remarkable success in text-to-image generation. While many existing alignment methods primarily focus on fine-tuning pre-trained generative models to maximize a given reward function,…

机器学习 · 统计学 2026-02-03 Yidong Ouyang , Liyan Xie , Hongyuan Zha , Guang Cheng

Text serves as the key control signal in video generation due to its narrative nature. To render text descriptions into video clips, current video diffusion models borrow features from text encoders yet struggle with limited text…

计算机视觉与模式识别 · 计算机科学 2024-12-05 Shuai Tan , Biao Gong , Yutong Feng , Kecheng Zheng , Dandan Zheng , Shuwei Shi , Yujun Shen , Jingdong Chen , Ming Yang