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End-to-end autonomous driving systems excel in common scenarios but struggle with safety-critical long-tail cases. Vision-Language-Action (VLA) models are promising due to their strong reasoning capabilities. However, most VLA-based…

机器人学 · 计算机科学 2026-05-20 Kefei Tian , Yuansheng Lian , Kai Yang , Xiangdong Chen , Shen Li

In this paper, we identify a new category of bias that induces input-conflicting hallucinations, where large language models (LLMs) generate responses inconsistent with the content of the input context. This issue we have termed the false…

计算与语言 · 计算机科学 2024-06-21 Jongyoon Song , Sangwon Yu , Sungroh Yoon

Vision-language models (VLMs) have demonstrated strong cross-modal capabilities, yet most work remains limited to 2D data and assumes binary supervision (i.e., positive vs. negative pairs), overlooking the continuous and structured…

计算机视觉与模式识别 · 计算机科学 2025-11-06 Ailar Mahdizadeh , Puria Azadi Moghadam , Xiangteng He , Shahriar Mirabbasi , Panos Nasiopoulos , Leonid Sigal

Vision-language models (VLMs) have demonstrated remarkable potential in integrating visual and linguistic information, but their performance is often constrained by the need for extensive, high-quality image-text training data. Curation of…

计算机视觉与模式识别 · 计算机科学 2025-05-20 Giorgio Giannone , Ruoteng Li , Qianli Feng , Evgeny Perevodchikov , Rui Chen , Aleix Martinez

Contrastively-trained Vision-Language Models (VLMs) like CLIP have become the de facto approach for discriminative vision-language representation learning. However, these models have limited language understanding, often exhibiting a "bag…

计算机视觉与模式识别 · 计算机科学 2025-05-12 Yassine Ouali , Adrian Bulat , Alexandros Xenos , Anestis Zaganidis , Ioannis Maniadis Metaxas , Brais Martinez , Georgios Tzimiropoulos

One-shot federated learning (OSFL) reduces the communication cost and privacy risks of iterative federated learning by constructing a global model with a single round of communication. However, most existing methods struggle to achieve…

机器学习 · 计算机科学 2026-01-08 Shudong Liu , Hanwen Zhang , Xiuling Wang , Yuesheng Zhu , Guibo Luo

Graph contrastive learning (GCL) has emerged as a representative graph self-supervised method, achieving significant success. The currently prevalent optimization objective for GCL is InfoNCE. Typically, it employs augmentation techniques…

机器学习 · 计算机科学 2024-03-22 Yulan Hu , Sheng Ouyang , Jingyu Liu , Ge Chen , Zhirui Yang , Junchen Wan , Fuzheng Zhang , Zhongyuan Wang , Yong Liu

Although fine-tuning Large Language Models (LLMs) with multilingual data can rapidly enhance the multilingual capabilities of LLMs, they still exhibit a performance gap between the dominant language (e.g., English) and non-dominant ones due…

计算与语言 · 计算机科学 2025-06-30 Hengyuan Zhang , Chenming Shang , Sizhe Wang , Dongdong Zhang , Yiyao Yu , Feng Yao , Renliang Sun , Yujiu Yang , Furu Wei

Many practical vision-language applications require models that understand negation, e.g., when using natural language to retrieve images which contain certain objects but not others. Despite advancements in vision-language models (VLMs)…

计算机视觉与模式识别 · 计算机科学 2025-05-14 Kumail Alhamoud , Shaden Alshammari , Yonglong Tian , Guohao Li , Philip Torr , Yoon Kim , Marzyeh Ghassemi

Self-supervised learning approach like contrastive learning is attached great attention in natural language processing. It uses pairs of training data augmentations to build a classification task for an encoder with well representation…

计算与语言 · 计算机科学 2021-12-03 Deshui Miao , Jiaqi Zhang , Wenbo Xie , Jian Song , Xin Li , Lijuan Jia , Ning Guo

Vision-Language Pre-training (VLP) aims to learn multi-modal representations from image-text pairs and serves for downstream vision-language tasks in a fine-tuning fashion. The dominant VLP models adopt a CNN-Transformer architecture, which…

计算机视觉与模式识别 · 计算机科学 2021-11-10 Hongwei Xue , Yupan Huang , Bei Liu , Houwen Peng , Jianlong Fu , Houqiang Li , Jiebo Luo

Traditional (fickle) adversarial examples involve finding a small perturbation that does not change an input's true label but confuses the classifier into outputting a different prediction. Conversely, obstinate adversarial examples occur…

计算与语言 · 计算机科学 2022-11-01 Hannah Chen , Yangfeng Ji , David Evans

With recent progress in joint modeling of visual and textual representations, Vision-Language Pretraining (VLP) has achieved impressive performance on many multimodal downstream tasks. However, the requirement for expensive annotations…

计算机视觉与模式识别 · 计算机科学 2022-05-17 Zirui Wang , Jiahui Yu , Adams Wei Yu , Zihang Dai , Yulia Tsvetkov , Yuan Cao

Vision-Language-Action systems follow instructions to execute multi-step tasks in multimodal environments. Recent VLA approaches typically rely on post-hoc correction mechanisms or operate under fixed task decompositions and alignment…

人工智能 · 计算机科学 2026-05-12 Xiyin Zeng , Yuyu Sun , Haoyang Li , Shouqiang Liu , Hao Wang

Better disentanglement of speech representation is essential to improve the quality of voice conversion. Recently contrastive learning is applied to voice conversion successfully based on speaker labels. However, the performance of model…

声音 · 计算机科学 2023-11-16 Yimin Deng , Xulong Zhang , Jianzong Wang , Ning Cheng , Jing Xiao

Learning to defer (L2D) enables human-AI cooperation by deciding when an AI system should act autonomously or defer to a human expert. Existing L2D methods, however, assume static human performance, contradicting well-established findings…

机器学习 · 计算机科学 2026-04-07 Zheng Zhang , Cuong C. Nguyen , David Rosewarne , Kevin Wells , Gustavo Carneiro

Large-scale vision-language models (VLMs) such as CLIP exhibit strong zero-shot generalization, but adapting them to downstream tasks typically requires costly labeled data. Existing unsupervised self-training methods rely on…

计算机视觉与模式识别 · 计算机科学 2026-02-05 Qian-Wei Wang , Guanghao Meng , Ren Cai , Yaguang Song , Shu-Tao Xia

This paper addresses the challenge of fine-grained alignment in Vision-and-Language Navigation (VLN) tasks, where robots navigate realistic 3D environments based on natural language instructions. Current approaches use contrastive learning…

计算机视觉与模式识别 · 计算机科学 2024-12-03 Yuhang Song , Mario Gianni , Chenguang Yang , Kunyang Lin , Te-Chuan Chiu , Anh Nguyen , Chun-Yi Lee

Current state-of-the-art approaches in Source-Free Object Detection (SFOD) typically rely on Mean-Teacher self-labeling. However, domain shift often reduces the detector's ability to maintain strong object-focused representations, causing…

计算机视觉与模式识别 · 计算机科学 2026-02-24 Sairam VCR , Rishabh Lalla , Aveen Dayal , Tejal Kulkarni , Anuj Lalla , Vineeth N Balasubramanian , Muhammad Haris Khan

Contrastive Language-Image Pretraining (CLIP) models maximize the mutual information between text and visual modalities to learn representations. This makes the nature of the training data a significant factor in the efficacy of CLIP for…

计算机视觉与模式识别 · 计算机科学 2024-11-06 Maitreya Patel , Abhiram Kusumba , Sheng Cheng , Changhoon Kim , Tejas Gokhale , Chitta Baral , Yezhou Yang