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With the success of flow matching in visual generation, sampling efficiency remains a critical bottleneck for its practical application. Among flow models' accelerating methods, ReFlow has been somehow overlooked although it has theoretical…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Lei Ke , Hubery Yin , Gongye Liu , Zhengyao Lv , Jingcai Guo , Chen Li , Wenhan Luo , Yujiu Yang , Jing Lyu

Recent reinforcement learning has enhanced the flow matching models on human preference alignment. While stochastic sampling enables the exploration of denoising directions, existing methods which optimize over multiple denoising steps…

Machine Learning · Computer Science 2026-01-05 Shengjun Zhang , Zhang Zhang , Chensheng Dai , Yueqi Duan

The recent success of inference-time scaling in large language models has inspired similar explorations in video diffusion. In particular, motivated by the existence of "golden noise" that enhances video quality, prior work has attempted to…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Zengqun Zhao , Ziquan Liu , Yu Cao , Shaogang Gong , Zhensong Zhang , Jifei Song , Jiankang Deng , Ioannis Patras

Tool use enables large language models to solve complex tasks through sequences of API calls, yet existing reinforcement learning approaches fail to scale to multi-step composition settings. Outcome-based rewards provide only sparse…

Machine Learning · Computer Science 2026-05-19 Anay Kulkarni , ChiaEn Lu , Dheeraj Mekala , Jayanth Srinivasa , Gaowen Liu , Jingbo Shang

Diffusion models have become the dominant approach for visual generation. They are trained by denoising a Markovian process which gradually adds noise to the input. We argue that the Markovian property limits the model's ability to fully…

Computer Vision and Pattern Recognition · Computer Science 2025-01-24 Jiatao Gu , Yuyang Wang , Yizhe Zhang , Qihang Zhang , Dinghuai Zhang , Navdeep Jaitly , Josh Susskind , Shuangfei Zhai

Diffusion distillation models effectively accelerate reverse sampling by compressing the process into fewer steps. However, these models still exhibit a performance gap compared to their pre-trained diffusion model counterparts, exacerbated…

Computer Vision and Pattern Recognition · Computer Science 2024-12-13 Geon Yeong Park , Sang Wan Lee , Jong Chul Ye

We focus on the problem of training a deep neural network in generations. The flowchart is that, in order to optimize the target network (student), another network (teacher) with the same architecture is first trained, and used to provide…

Computer Vision and Pattern Recognition · Computer Science 2018-09-10 Chenglin Yang , Lingxi Xie , Siyuan Qiao , Alan Yuille

Current autoencoder-based disentangled representation learning methods achieve disentanglement by penalizing the (aggregate) posterior to encourage statistical independence of the latent factors. This approach introduces a trade-off between…

With the success of deep neural networks, knowledge distillation which guides the learning of a small student network from a large teacher network is being actively studied for model compression and transfer learning. However, few studies…

Computer Vision and Pattern Recognition · Computer Science 2021-08-10 Wonchul Son , Jaemin Na , Junyong Choi , Wonjun Hwang

Backpropagation-based approaches aim to align diffusion models with reward functions through end-to-end backpropagation of the reward gradient within the denoising chain, offering a promising perspective. However, due to the computational…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Xiefan Guo , Miaomiao Cui , Liefeng Bo , Di Huang

Language agents have become a promising solution to complex interactive tasks. One of the key ingredients to the success of language agents is the reward model on the trajectory of the agentic workflow, which provides valuable guidance…

Machine Learning · Computer Science 2025-02-05 Zongyu Lin , Yao Tang , Xingcheng Yao , Da Yin , Ziniu Hu , Yizhou Sun , Kai-Wei Chang

Inverse reinforcement learning (IRL) aims to explicitly infer an underlying reward function based on collected expert demonstrations. Considering that obtaining expert demonstrations can be costly, the focus of current IRL techniques is on…

Machine Learning · Computer Science 2023-10-16 Lu Li , Yuxin Pan , Ruobing Chen , Jie Liu , Zilin Wang , Yu Liu , Zhiheng Li

In the context of label-efficient learning on video data, the distillation method and the structural design of the teacher-student architecture have a significant impact on knowledge distillation. However, the relationship between these…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Chao Wang , Zheng Tang

Distribution Matching Distillation (DMD) is a powerful acceleration paradigm, yet its stability is often compromised in Forbidden Zone, regions where the real teacher provides unreliable guidance while the fake teacher exerts insufficient…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Lichen Bai , Zikai Zhou , Shitong Shao , Wenliang Zhong , Shuo Yang , Shuo Chen , Bojun Chen , Zeke Xie

Generative models have recently demonstrated strong potential in multi-behavior recommendation systems, leveraging the expressive power of transformers and tokenization to generate personalized item sequences. However, their adoption is…

Diffusion-based real-world image super-resolution (Real-ISR) methods have demonstrated impressive performance.To achieve efficient Real-ISR, many works employ Variational Score Distillation (VSD) to distill pre-trained stable-diffusion (SD)…

Image and Video Processing · Electrical Eng. & Systems 2026-03-03 Tianyi Zhang , Zheng-Peng Duan , Peng-Tao Jiang , Bo Li , Ming-Ming Cheng , Chun-Le Guo , Chongyi Li

Diffusion Models (DMs) have achieved great success in image generation and other fields. By fine sampling through the trajectory defined by the SDE/ODE solver based on a well-trained score model, DMs can generate remarkable high-quality…

Computer Vision and Pattern Recognition · Computer Science 2024-06-10 Bowen Zheng , Tianming Yang

Large pretrained language models (LMs) like BERT have improved performance in many disparate natural language processing (NLP) tasks. However, fine tuning such models requires a large number of training examples for each target task.…

Computation and Language · Computer Science 2022-01-28 Jixuan Wang , Kuan-Chieh Wang , Frank Rudzicz , Michael Brudno

Diffusion models (DMs) produce high-quality images, yet their sampling remains costly when adapted to new domains. Distilled DMs are faster but typically remain confined within their teacher's domain. Thus, fast and high-quality generation…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 Yara Bahram , Mélodie Desbos , Mohammadhadi Shateri , Eric Granger

We demonstrate that in knowledge distillation for diffusion models, the teacher network's highly complex denoising process - stemming from its substantially larger capacity - poses a significant challenge for the student model to faithfully…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Hyunsoo Han , Sangyeop Yeo , Jaejun Yoo