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We propose Frequency-Guided Attention (FGA), a lightweight upsampling module for single image super-resolution. Conventional upsamplers, such as Sub-Pixel Convolution, are efficient but frequently fail to reconstruct high-frequency details…

计算机视觉与模式识别 · 计算机科学 2025-08-26 Daejune Choi , Youchan No , Jinhyung Lee , Duksu Kim

Diffusion transformers (DiTs) have emerged as a dominant architecture for text-to-image generation, yet their performance drops when generating at resolutions beyond their training range. Existing training-free approaches mitigate this by…

计算机视觉与模式识别 · 计算机科学 2026-05-22 Javad Rajabi , Kimia Shaban , Koorosh Roohi , David B. Lindell , Babak Taati

Generalized Category Discovery (GCD) aims to classify unlabeled data from both known and unknown categories by leveraging knowledge from labeled known categories. While existing methods have made notable progress, they often overlook a…

计算机视觉与模式识别 · 计算机科学 2025-07-22 Qiyu Xu , Zhanxuan Hu , Yu Duan , Ercheng Pei , Yonghang Tai

Classifier-free guidance (CFG) is the primary control over how strongly text semantics move a flow-based sampler, yet standard practice holds its scale fixed across the entire ODE trajectory. This is a fundamental mismatch: early steps are…

计算机视觉与模式识别 · 计算机科学 2026-05-18 Yan Luo , Ahmadou Aidara , Jingyi Lu , Jeremy Moebel , Kai Han , Mengyu Wang

Structural topology optimization, which aims to find the optimal physical structure that maximizes mechanical performance, is vital in engineering design applications in aerospace, mechanical, and civil engineering. Generative adversarial…

机器学习 · 计算机科学 2022-12-07 François Mazé , Faez Ahmed

We study the problem of generating graph signals from unknown distributions defined over given graphs, relevant to domains such as recommender systems or sensor networks. Our approach builds on generative diffusion models, which are well…

机器学习 · 计算机科学 2025-10-07 Sergio Rozada , Vimal K. B. , Andrea Cavallo , Antonio G. Marques , Hadi Jamali-Rad , Elvin Isufi

Optical flow, or the estimation of motion fields from image sequences, is one of the fundamental problems in computer vision. Unlike most pixel-wise tasks that aim at achieving consistent representations of the same category, optical flow…

计算机视觉与模式识别 · 计算机科学 2023-09-29 Ao Luo , Fan Yang , Xin Li , Lang Nie , Chunyu Lin , Haoqiang Fan , Shuaicheng Liu

Generative diffusion models show promise for data augmentation. However, applying them to fine-grained tasks presents a significant challenge: ensuring synthetic images accurately capture the subtle, category-defining features critical for…

计算机视觉与模式识别 · 计算机科学 2025-12-02 Zhiguang Lu , Qianqian Xu , Peisong Wen , Siran Dai , Qingming Huang

Accurate cancer diagnosis remains a critical challenge in digital pathology, largely due to the gigapixel size and complex spatial relationships present in whole slide images. Traditional multiple instance learning (MIL) methods often…

计算机视觉与模式识别 · 计算机科学 2024-04-18 Kechun Liu , Wenjun Wu , Joann G. Elmore , Linda G. Shapiro

Diffusion models have demonstrated remarkable capabilities in generating high-quality samples and enhancing performance across diverse domains through Classifier-Free Guidance (CFG). However, the quality of generated samples is highly…

计算机视觉与模式识别 · 计算机科学 2025-08-21 Ao Chen , Lihe Ding , Tianfan Xue

The paper presents a Graph Attention Convolutional Network (GACN) for flow reconstruction from very sparse data in time-varying geometries. The model incorporates a feature propagation algorithm as a preprocessing step to handle extremely…

机器学习 · 计算机科学 2024-11-14 Bogdan A. Danciu , Vito A. Pagone , Benjamin Böhm , Marius Schmidt , Christos E. Frouzakis

Flow matching has recently emerged as a principled framework for learning continuous-time transport maps, enabling efficient ODE-based sampling without relying on stochastic diffusion processes. While generative modeling has shown promise…

计算机视觉与模式识别 · 计算机科学 2026-05-08 Zhi Chen , Runze Hu , Le Zhang

With the rapid development of conditional diffusion models, significant progress has been made in text-to-video generation. However, we observe that these models often neglect semantically important tokens during inference, leading to…

计算机视觉与模式识别 · 计算机科学 2026-04-09 Guoqing Zhang , Lu Shi , Wanru Xu , Linna Zhang , Sen Wang , Fangfang Wang , Yigang Cen

Classifier-Free Guidance (CFG) is essential for high-fidelity conditional generation in flow matching, yet it imposes significant computational overhead by requiring dual forward passes at each sampling step. In this work, we address this…

人工智能 · 计算机科学 2026-05-08 Xin Peng , Ang Gao

Graph anomaly detection (GAD) has garnered increasing attention in recent years, yet remains challenging due to two key factors: (1) label scarcity stemming from the high cost of annotations and (2) homophily disparity at node and class…

机器学习 · 计算机科学 2026-01-30 Yunhui Liu , Jiashun Cheng , Yiqing Lin , Qizhuo Xie , Jia Li , Fugee Tsung , Hongzhi Yin , Tao Zheng , Jianhua Zhao , Tieke He

Accurate aerodynamic field prediction is crucial for vehicle drag evaluation, but the computational cost of high-fidelity CFD hinders its use in iterative design workflows. While learning-based methods enable fast and scalable inference,…

计算工程、金融与科学 · 计算机科学 2026-02-25 Zhenhua Zheng , Lu Zhang , Junhong Zou , Shitong Liu , Zhen Lei , Xiangyu Zhu , Zhiyong Liu

Diffusion models are promising for joint trajectory prediction and controllable generation in autonomous driving, but they face challenges of inefficient inference steps and high computational demands. To tackle these challenges, we…

计算机视觉与模式识别 · 计算机科学 2024-08-02 Yixiao Wang , Chen Tang , Lingfeng Sun , Simone Rossi , Yichen Xie , Chensheng Peng , Thomas Hannagan , Stefano Sabatini , Nicola Poerio , Masayoshi Tomizuka , Wei Zhan

Autoregressive (AR) models based on next-scale prediction are rapidly emerging as a powerful tool for image generation, but they face a critical weakness: information inconsistencies between patches across timesteps introduced by…

计算机视觉与模式识别 · 计算机科学 2025-10-02 Ky Dan Nguyen , Hoang Lam Tran , Anh-Dung Dinh , Daochang Liu , Weidong Cai , Xiuying Wang , Chang Xu

Autoregressive models excel in efficiency and plug directly into the transformer ecosystem, delivering robust generalization, predictable scalability, and seamless workflows such as fine-tuning and parallelized training. However, they…

机器学习 · 计算机科学 2025-06-13 Samuel Belkadi , Steve Hong , Marian Chen , Miruna Cretu , Charles Harris , Pietro Lio

Pavement crack detection has long depended on costly and time-intensive pixel-level annotations, which limit its scalability for large-scale infrastructure monitoring. To overcome this barrier, this paper examines the feasibility of…

计算机视觉与模式识别 · 计算机科学 2025-10-24 Blessing Agyei Kyem , Joshua Kofi Asamoah , Eugene Denteh , Andrews Danyo , Armstrong Aboah