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Recent breakthroughs in large language models (LLMs) have fundamentally shifted recommender systems from discriminative to generative paradigms, where user behavior modeling is achieved by generating target items conditioned on historical…

信息检索 · 计算机科学 2025-10-15 Junfei Tan , Yuxin Chen , An Zhang , Junguang Jiang , Bin Liu , Ziru Xu , Han Zhu , Jian Xu , Bo Zheng , Xiang Wang

Reinforcement Learning with Verifiable Rewards~(RLVR) has become a prominent paradigm to enhance the capabilities (i.e.\ long-context) of Large Language Models~(LLMs). However, it often relies on gold-standard answers or explicit evaluation…

计算与语言 · 计算机科学 2026-03-03 Yao Xiao , Lei Wang , Yue Deng , Guanzheng Chen , Ziqi Jin , Jung-jae Kim , Xiaoli Li , Roy Ka-wei Lee , Lidong Bing

Reinforcement learning (RL) has been widely used in training large language models (LLMs) for preventing unexpected outputs, eg reducing harmfulness and errors. However, existing RL methods mostly adopt the instance-level reward, which is…

计算与语言 · 计算机科学 2024-06-18 Zhipeng Chen , Kun Zhou , Wayne Xin Zhao , Junchen Wan , Fuzheng Zhang , Di Zhang , Ji-Rong Wen

Text-to-Image (T2I) models have made remarkable progress in generating images from text prompts, but their output quality and safety still depend heavily on how prompts are phrased. Existing safety methods typically refine prompts using…

计算机视觉与模式识别 · 计算机科学 2025-09-18 Jinwoo Jeon , JunHyeok Oh , Hayeong Lee , Byung-Jun Lee

We present here the first systematic treatment of the problems posed by the visualization and analysis of large-scale, parallel adaptive mesh refinement (AMR) simulations on an Eulerian grid. When compared to those obtained by constructing…

图形学 · 计算机科学 2017-02-17 Guénolé Harel , Jacques-Bernard Lekien , Philippe P. Pébaÿ

Recent advances in large-scale text-to-image diffusion models (e.g., FLUX.1) have greatly improved visual fidelity in consistent character generation and editing. However, existing methods rarely unify these tasks within a single framework.…

计算机视觉与模式识别 · 计算机科学 2025-10-14 Benjia Zhou , Bin Fu , Pei Cheng , Yanru Wang , Jiayuan Fan , Tao Chen

Image rescaling (IR) seeks to determine the optimal low-resolution (LR) representation of a high-resolution (HR) image to reconstruct a high-quality super-resolution (SR) image. Typically, HR images with resolutions exceeding 2K possess…

图像与视频处理 · 电气工程与系统科学 2024-12-17 Jian Li , Siwang Zhou

Dynamic magnetic resonance image reconstruction from incomplete k-space data has generated great research interest due to its capability to reduce scan time. Never-theless, the reconstruction problem is still challenging due to its…

图像与视频处理 · 电气工程与系统科学 2022-12-16 Chuanming Yu , Yu Guan , Ziwen Ke , Dong Liang , Qiegen Liu

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…

Multimodal Large Language Models (MLLMs) are making significant progress in multimodal reasoning. Early approaches focus on pure text-based reasoning. More recent studies have incorporated multimodal information into the reasoning steps;…

人工智能 · 计算机科学 2026-04-21 Dongjie Cheng , Yongqi Li , Zhixin Ma , Hongru Cai , Yupeng Hu , Wenjie Wang , Liqiang Nie , Wenjie Li

Text-to-image models are powerful for producing high-quality images based on given text prompts, but crafting these prompts often requires specialized vocabulary. To address this, existing methods train rewriting models with supervision…

计算机视觉与模式识别 · 计算机科学 2025-12-16 Hongji Yang , Yucheng Zhou , Wencheng Han , Jianbing Shen

Retrieval augmented generation (RAG) pipelines are commonly used in tasks such as question-answering (QA), relying on retrieving relevant documents from a vector store computed using a pretrained embedding model. However, if the retrieved…

计算与语言 · 计算机科学 2024-10-18 Ambuje Gupta , Mrinal Rawat , Andreas Stolcke , Roberto Pieraccini

Accurate and early diagnosis of malignant melanoma is critical for improving patient outcomes. While convolutional neural networks (CNNs) have shown promise in dermoscopic image analysis, they often neglect clinical metadata and require…

计算机视觉与模式识别 · 计算机科学 2025-09-11 Jihyun Moon , Charmgil Hong

Real-world dark images commonly exhibit not only low visibility and contrast but also complex noise and blur, posing significant restoration challenges. Existing methods often rely on paired data or fail to model dynamic illumination and…

计算机视觉与模式识别 · 计算机科学 2025-11-25 Wei Dong , Han Zhou , Junwei Lin , Jun Chen

Pre-trained models with large-scale training data, such as CLIP and Stable Diffusion, have demonstrated remarkable performance in various high-level computer vision tasks such as image understanding and generation from language…

计算机视觉与模式识别 · 计算机科学 2024-03-20 Xiaogang Xu , Shu Kong , Tao Hu , Zhe Liu , Hujun Bao

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

Multimodal Large Language Models (MLLMs) have emerged to tackle the challenges of Visual Question Answering (VQA), sparking a new research focus on conducting objective evaluations of these models. Existing evaluation methods face…

计算机视觉与模式识别 · 计算机科学 2025-03-20 Qihui Zhang , Munan Ning , Zheyuan Liu , Yanbo Wang , Jiayi Ye , Yue Huang , Shuo Yang , Xiao Chen , Yibing Song , Li Yuan

Many real-world applications, such as interactive photo retouching, artistic content creation, and product design, require flexible and iterative image editing. However, existing image editing methods primarily focus on achieving the…

计算机视觉与模式识别 · 计算机科学 2025-05-08 Zijun Zhou , Yingying Deng , Xiangyu He , Weiming Dong , Fan Tang

The primary challenge in video super-resolution (VSR) is to handle large motions in the input frames, which makes it difficult to accurately aggregate information from multiple frames. Existing works either adopt deformable convolutions or…

计算机视觉与模式识别 · 计算机科学 2023-05-15 Zhihe Lu , Zeyu Xiao , Jiawang Bai , Zhiwei Xiong , Xinchao Wang

Leveraging multimodal large models for image segmentation has become a prominent research direction. However, existing approaches typically rely heavily on manually annotated datasets that include explicit reasoning processes, which are…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Jiaqi Huang , Zunnan Xu , Jun Zhou , Ting Liu , Yicheng Xiao , Mingwen Ou , Bowen Ji , Xiu Li , Kehong Yuan