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Alignment plays a crucial role in Large Language Models (LLMs) in aligning with human preferences on a specific task/domain. Traditional alignment methods suffer from catastrophic forgetting, where models lose previously acquired knowledge…

Computation and Language · Computer Science 2026-04-09 Junsong Li , Jie Zhou , Bihao Zhan , Yutao Yang , Qianjun Pan , Shilian Chen , Tianyu Huai , Xin Li , Qin Chen , Liang He

Pre-trained vision-language models (VLMs) learn to align vision and language representations on large-scale datasets, where each image-text pair usually contains a bag of semantic concepts. However, existing open-vocabulary object detectors…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Size Wu , Wenwei Zhang , Sheng Jin , Wentao Liu , Chen Change Loy

Fine-tuning large language models (LLMs) to align with user preferences is challenging due to the high cost of quality human annotations in Reinforcement Learning from Human Feedback (RLHF) and the generalizability limitations of AI…

Vision--language models (VLMs) achieve strong performance on many multimodal benchmarks but remain brittle on spatial reasoning tasks that require aligning abstract overhead representations with egocentric views. We introduce m2sv, a…

Computer Vision and Pattern Recognition · Computer Science 2026-01-28 Yosub Shin , Michael Buriek , Igor Molybog

Recent generalist vision-language models (VLMs) have demonstrated impressive reasoning capabilities across diverse multimodal tasks. However, these models still struggle with fine-grained object-level understanding and grounding. In terms…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Timothy Ossowski , Junjie Hu

Aligning Large Language Models (LLMs) with the diverse spectrum of human values remains a central challenge: preference-based methods often fail to capture deeper motivational principles. Value-based approaches offer a more principled path,…

Artificial Intelligence · Computer Science 2026-02-04 Woojin Kim , Sieun Hyeon , Jusang Oh , Jaeyoung Do

Multimodal Large Language Models (MLLMs) excel in vision-language tasks, such as image captioning and visual question answering. However, they often suffer from over-reliance on spurious correlations, primarily due to linguistic priors that…

Computer Vision and Pattern Recognition · Computer Science 2025-06-24 Yixuan Wu , Yang Zhang , Jian Wu , Philip Torr , Jindong Gu

Fine-grained attribute prediction is essential for fashion retail applications including catalog enrichment, visual search, and recommendation systems. Vision-Language Models (VLMs) offer zero-shot prediction without task-specific training,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-23 Shubham Shukla , Kunal Sonalkar

Vision-language models (VLMs) are increasingly proposed as general-purpose tools for scientific data interpretation, yet their reliability on real astronomical observations across diverse modalities remains untested. We present…

Artificial Intelligence · Computer Science 2026-04-28 Wenke Ren , Hengxiao Guo , Wenwen Zuo , Xiaoman Zhang

Large vision-language models (VLMs) often rely on familiar semantic priors, but existing evaluations do not cleanly separate perception failures from rule-mapping failures. We study this behavior as semantic fixation: preserving a default…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Md Tanvirul Alam

In question-answering scenarios, humans can assess whether the available information is sufficient and seek additional information if necessary, rather than providing a forced answer. In contrast, Vision Language Models (VLMs) typically…

Computer Vision and Pattern Recognition · Computer Science 2024-11-04 Li Liu , Diji Yang , Sijia Zhong , Kalyana Suma Sree Tholeti , Lei Ding , Yi Zhang , Leilani H. Gilpin

Vision-Language Models (VLMs), with their powerful content generation capabilities, have been successfully applied to data annotation processes. However, the VLM-generated labels exhibit dual limitations: low quality (i.e., label noise) and…

Machine Learning · Computer Science 2025-11-17 Zhongnian Li , Lan Chen , Yixin Xu , Shi Xu , Xinzheng Xu

Reinforcement learning from human feedback (RLHF) has emerged as the primary method for aligning large language models (LLMs) with human preferences. The RLHF process typically starts by training a reward model (RM) using human preference…

Machine Learning · Computer Science 2024-06-19 Haoxiang Wang , Wei Xiong , Tengyang Xie , Han Zhao , Tong Zhang

Vision-language models (VLMs), such as CLIP, have demonstrated exceptional generalization capabilities and can quickly adapt to downstream tasks through prompt fine-tuning. Unfortunately, in classification tasks involving non-training…

Computer Vision and Pattern Recognition · Computer Science 2025-02-06 Song-Lin Lv , Yu-Yang Chen , Zhi Zhou , Yu-Feng Li , Lan-Zhe Guo

Real-world vision-language applications demand varying levels of perceptual granularity. However, most existing visual large language models (VLLMs), such as LLaVA, pre-assume a fixed resolution for downstream tasks, which leads to subpar…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Weiqing Luo , Zhen Tan , Yifan Li , Xinyu Zhao , Kwonjoon Lee , Behzad Dariush , Tianlong Chen

The explosion of visual content available online underscores the requirement for an accurate machine assessor to robustly evaluate scores across diverse types of visual contents. While recent studies have demonstrated the exceptional…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Haoning Wu , Zicheng Zhang , Weixia Zhang , Chaofeng Chen , Liang Liao , Chunyi Li , Yixuan Gao , Annan Wang , Erli Zhang , Wenxiu Sun , Qiong Yan , Xiongkuo Min , Guangtao Zhai , Weisi Lin

Reinforcement Learning from Human Feedback (RLHF) has emerged as a powerful technique for aligning large language models (LLMs) with human preferences. However, effectively aligning LLMs with diverse human preferences remains a significant…

Computation and Language · Computer Science 2025-07-03 Chengao Li , Hanyu Zhang , Yunkun Xu , Hongyan Xue , Xiang Ao , Qing He

Fine-tuning vision-language models (VLMs) on robot teleoperation data to create vision-language-action (VLA) models is a promising paradigm for training generalist policies, but it suffers from a fundamental tradeoff: learning to produce…

Robotics · Computer Science 2025-09-29 Asher J. Hancock , Xindi Wu , Lihan Zha , Olga Russakovsky , Anirudha Majumdar

Vision-Language Translation (VLT) is a challenging task that requires accurately recognizing multilingual text embedded in images and translating it into the target language with the support of visual context. While recent Large…

Computer Vision and Pattern Recognition · Computer Science 2025-06-16 Xintong Wang , Jingheng Pan , Yixiao Liu , Xiaohu Zhao , Chenyang Lyu , Minghao Wu , Chris Biemann , Longyue Wang , Linlong Xu , Weihua Luo , Kaifu Zhang

For a vision-language model (VLM) to understand the physical world, such as cause and effect, a first step is to capture the temporal dynamics of the visual world, for example how the physical states of objects evolve over time (e.g. a…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Kaleb Newman , Shijie Wang , Yuan Zang , David Heffren , Chen Sun