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Reinforcement learning from human feedback (RLHF) has proven effective in enhancing the instruction-following capabilities of large language models; however, it remains underexplored in the cross-modality domain. As the number of modalities…

The current text-to-video (T2V) generation has made significant progress in synthesizing realistic general videos, but it is still under-explored in identity-specific human video generation with customized ID images. The key challenge lies…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Hengjia Li , Haonan Qiu , Shiwei Zhang , Xiang Wang , Yujie Wei , Zekun Li , Yingya Zhang , Boxi Wu , Deng Cai

Recent studies have demonstrated the exceptional potentials of leveraging human preference datasets to refine text-to-image generative models, enhancing the alignment between generated images and textual prompts. Despite these advances,…

计算机视觉与模式识别 · 计算机科学 2024-04-24 Xun Wu , Shaohan Huang , Furu Wei

Most text-to-video(T2V) diffusion models depend on pre-trained text encoders for semantic alignment, yet they often fail to maintain video quality when provided with concise prompts rather than well-designed ones. The primary issue lies in…

计算机视觉与模式识别 · 计算机科学 2025-11-07 Xiangjun Zhang , Litong Gong , Yinglin Zheng , Yansong Liu , Wentao Jiang , Mingyi Xu , Biao Wang , Tiezheng Ge , Ming Zeng

While large language models demonstrate remarkable capabilities, they often present challenges in terms of safety, alignment with human values, and stability during training. Here, we focus on two prevalent methods used to align these…

计算与语言 · 计算机科学 2023-10-26 Gabriel Mukobi , Peter Chatain , Su Fong , Robert Windesheim , Gitta Kutyniok , Kush Bhatia , Silas Alberti

Pre-trained large-scale language models (LLMs) excel at producing coherent articles, yet their outputs may be untruthful, toxic, or fail to align with user expectations. Current approaches focus on using reinforcement learning with human…

计算与语言 · 计算机科学 2024-06-06 Dehong Xu , Liang Qiu , Minseok Kim , Faisal Ladhak , Jaeyoung Do

When developing new large language models (LLMs), a key step is evaluating their final performance, often by computing the win-rate against a reference model based on external feedback. Human feedback is the gold standard, particularly for…

机器学习 · 计算机科学 2025-02-26 Zhaoyi Zhou , Yuda Song , Andrea Zanette

Despite recent advances in text-to-3D generative methods, there is a notable absence of reliable evaluation metrics. Existing metrics usually focus on a single criterion each, such as how well the asset aligned with the input text. These…

计算机视觉与模式识别 · 计算机科学 2024-01-11 Tong Wu , Guandao Yang , Zhibing Li , Kai Zhang , Ziwei Liu , Leonidas Guibas , Dahua Lin , Gordon Wetzstein

Aligning human preference and value is an important requirement for building contemporary foundation models and embodied AI. However, popular approaches such as reinforcement learning with human feedback (RLHF) break down the task into…

人工智能 · 计算机科学 2024-12-03 Chenliang Li , Siliang Zeng , Zeyi Liao , Jiaxiang Li , Dongyeop Kang , Alfredo Garcia , Mingyi Hong

Text-to-Video (T2V) retrieval aims to identify the most relevant item from a gallery of videos based on a user's text query. Traditional methods rely solely on aligning video and text modalities to compute the similarity and retrieve…

计算机视觉与模式识别 · 计算机科学 2025-06-02 Adriano Fragomeni , Dima Damen , Michael Wray

Learning from feedback has been shown to enhance the alignment between text prompts and images in text-to-image diffusion models. However, due to the lack of focus in feedback content, especially regarding the object type and quantity,…

计算机视觉与模式识别 · 计算机科学 2024-12-03 Xuexiang Niu , Jinping Tang , Lei Wang , Ge Zhu

Reinforcement Learning from Human Feedback (RLHF) is a powerful paradigm for aligning foundation models to human values and preferences. However, current RLHF techniques cannot account for the naturally occurring differences in individual…

机器学习 · 计算机科学 2024-08-20 Sriyash Poddar , Yanming Wan , Hamish Ivison , Abhishek Gupta , Natasha Jaques

Advancements in Natural Language Processing (NLP), have led to the emergence of Large Language Models (LLMs) such as GPT, Llama, Claude, and Gemini, which excel across a range of tasks but require extensive fine-tuning to align their…

计算与语言 · 计算机科学 2025-04-01 Angela Lopez-Cardona , Carlos Segura , Alexandros Karatzoglou , Sergi Abadal , Ioannis Arapakis

Reinforcement fine-tuning (RFT) has shown great promise in achieving humanlevel reasoning capabilities of Large Language Models (LLMs), and has recently been extended to MLLMs. Nevertheless, reasoning about videos, which is a fundamental…

计算机视觉与模式识别 · 计算机科学 2025-10-15 Qi Wang , Yanrui Yu , Ye Yuan , Rui Mao , Tianfei Zhou

Large multimodal models still struggle with text-rich images because of inadequate training data. Self-Instruct provides an annotation-free way for generating instruction data, but its quality is poor, as multimodal alignment remains a…

计算机视觉与模式识别 · 计算机科学 2024-12-24 Shijie Zhou , Ruiyi Zhang , Yufan Zhou , Changyou Chen

Text-to-Visualization (Text2Vis) systems translate natural language queries over tabular data into concise answers and executable visualizations. While closed-source LLMs generate functional code, the resulting charts often lack semantic…

计算与语言 · 计算机科学 2026-01-09 Mizanur Rahman , Mohammed Saidul Islam , Md Tahmid Rahman Laskar , Shafiq Joty , Enamul Hoque

Text-to-video (T2V) generation has achieved remarkable progress in producing high-quality videos aligned with textual prompts. However, aligning synthesized videos with nuanced human preference remains challenging due to the subjective and…

计算机视觉与模式识别 · 计算机科学 2025-12-01 Qiushi Yang , Yingjie Chen , Yuan Yao , Yifang Men , Huaizhuo Liu , Miaomiao Cui

Recent advancements in large multimodal models (LMMs) have driven substantial progress in both text-to-video (T2V) generation and video-to-text (V2T) interpretation tasks. However, current AI-generated videos (AIGVs) still exhibit…

计算机视觉与模式识别 · 计算机科学 2025-05-20 Jiarui Wang , Huiyu Duan , Ziheng Jia , Yu Zhao , Woo Yi Yang , Zicheng Zhang , Zijian Chen , Juntong Wang , Yuke Xing , Guangtao Zhai , Xiongkuo Min

Text-to-video (T2V) models have shown remarkable performance in generating visually reasonable scenes, while their capability to leverage world knowledge for ensuring semantic consistency and factual accuracy remains largely understudied.…

计算机视觉与模式识别 · 计算机科学 2025-07-25 Yubin Chen , Xuyang Guo , Zhenmei Shi , Zhao Song , Jiahao Zhang

Reinforcement learning (RL) has become a standard approach for post-training large language models and, more recently, for improving image generation models, which uses reward functions to enhance generation quality and human preference…

计算机视觉与模式识别 · 计算机科学 2026-01-08 Yunqi Hong , Kuei-Chun Kao , Hengguang Zhou , Cho-Jui Hsieh