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Existing Graph Neural Networks (GNNs) compute the message exchange between nodes by either aggregating uniformly (convolving) the features of all the neighboring nodes, or by applying a non-uniform score (attending) to the features. Recent…

机器学习 · 计算机科学 2023-03-02 Adrián Javaloy , Pablo Sanchez-Martin , Amit Levi , Isabel Valera

Radio Frequency (RF) sensing is attracting interest in research, standardization, and industry, especially for its potential in Internet of Things (IoT) applications. By leveraging the properties of the ElectroMagnetic (EM) waves used in…

信号处理 · 电气工程与系统科学 2026-01-13 Federica Fieramosca , Vittorio Rampa , Michele D'Amico , Stefano Savazzi

Dynamic graph representation learning has emerged as a crucial research area, driven by the growing need for analyzing time-evolving graph data in real-world applications. While recent approaches leveraging recurrent neural networks (RNNs)…

机器学习 · 计算机科学 2024-10-28 Shengxiang Hu , Guobing Zou , Song Yang , Shiyi Lin , Yanglan Gan , Bofeng Zhang

Prostate cancer grading from whole-slide images (WSIs) remains a challenging task due to the large-scale nature of WSIs, the presence of heterogeneous tissue structures, and difficulty of selecting diagnostically relevant regions. Existing…

计算机视觉与模式识别 · 计算机科学 2025-12-12 Masum Shah Junayed , John Derek Van Vessem , Qian Wan , Gahie Nam , Sheida Nabavi

Recently Transformer-based hyperspectral image (HSI) change detection methods have shown remarkable performance. Nevertheless, existing attention mechanisms in Transformers have limitations in local feature representation. To address this…

图像与视频处理 · 电气工程与系统科学 2024-11-22 Ziyi Wang , Feng Gao , Junyu Dong , Qian Du

Neural operators on irregular meshes face a fundamental tension. Spectral positional encodings, the natural choice for capturing geometry, require cubic-complexity eigendecomposition and inadvertently break gauge invariance through…

机器学习 · 计算机科学 2026-05-13 Mattia Rigotti , Nicholas Thumiger , Thomas Frick

Recent studies have highlighted the limitations of message-passing based graph neural networks (GNNs), e.g., limited model expressiveness, over-smoothing, over-squashing, etc. To alleviate these issues, Graph Transformers (GTs) have been…

机器学习 · 计算机科学 2023-03-06 Qiheng Mao , Zemin Liu , Chenghao Liu , Jianling Sun

Utilizing well-trained representations in transfer learning often results in superior performance and faster convergence compared to training from scratch. However, even if such good representations are transferred, a model can easily…

计算机视觉与模式识别 · 计算机科学 2024-01-08 SeokHyun Seo , Jinwoo Hong , JungWoo Chae , Kyungyul Kim , Sangheum Hwang

Previous works for LiDAR-based 3D object detection mainly focus on the single-frame paradigm. In this paper, we propose to detect 3D objects by exploiting temporal information in multiple frames, i.e., the point cloud videos. We empirically…

计算机视觉与模式识别 · 计算机科学 2022-11-29 Junbo Yin , Jianbing Shen , Xin Gao , David Crandall , Ruigang Yang

With the growing use of deep learning methods, particularly graph neural networks, which encode intricate interconnectedness information, for a variety of real tasks, there is a necessity for explainability in such settings. In this paper,…

机器学习 · 计算机科学 2022-11-04 Harsh Patel , Shivam Sahni

Handling geometric transformations, particularly rotations, remains a challenge in deep learning for computer vision. Standard neural networks lack inherent rotation invariance and typically rely on data augmentation or architectural…

计算机视觉与模式识别 · 计算机科学 2026-03-23 Cristian Valero-Abundio , Emilio Sansano-Sansano , Raúl Montoliu , Marina Martínez García

Gated cameras hold promise as an alternative to scanning LiDAR sensors with high-resolution 3D depth that is robust to back-scatter in fog, snow, and rain. Instead of sequentially scanning a scene and directly recording depth via the photon…

计算机视觉与模式识别 · 计算机科学 2021-12-07 Amanpreet Walia , Stefanie Walz , Mario Bijelic , Fahim Mannan , Frank Julca-Aguilar , Michael Langer , Werner Ritter , Felix Heide

Existing deepfake detectors face several challenges in achieving robustness and generalization. One of the primary reasons is their limited ability to extract relevant information from forgery videos, especially in the presence of various…

计算机视觉与模式识别 · 计算机科学 2023-05-01 Zhiyuan Yan , Peng Sun , Yubo Lang , Shuo Du , Shanzhuo Zhang , Wei Wang , Lei Liu

We propose a precise and efficient normal estimation method that can deal with noise and nonuniform density for unstructured 3D point clouds. Unlike existing approaches that directly take patches and ignore the local neighborhood…

计算机视觉与模式识别 · 计算机科学 2022-07-26 Keqiang Li , Mingyang Zhao , Huaiyu Wu , Dong-Ming Yan , Zhen Shen , Fei-Yue Wang , Gang Xiong

The existing sonar image classification methods based on deep learning are often analyzed in Euclidean space, only considering the local image features. For this reason, this paper presents a sonar classification method based on improved…

计算机视觉与模式识别 · 计算机科学 2022-11-29 Can Lei , Huigang Wang , Juan Lei

Graph neural networks (GNNs) have been widely applied in safety-critical applications, such as financial and medical networks, in which compromised predictions may cause catastrophic consequences. While existing research on GNN robustness…

机器学习 · 计算机科学 2025-07-28 Wencheng Zou , Nan Wu

In this paper, we design and train a Generative Image-to-text Transformer, GIT, to unify vision-language tasks such as image/video captioning and question answering. While generative models provide a consistent network architecture between…

计算机视觉与模式识别 · 计算机科学 2022-12-19 Jianfeng Wang , Zhengyuan Yang , Xiaowei Hu , Linjie Li , Kevin Lin , Zhe Gan , Zicheng Liu , Ce Liu , Lijuan Wang

Graph prediction problems prevail in data analysis and machine learning. The inverse prediction problem, namely to infer input data from given output labels, is of emerging interest in various applications. In this work, we develop…

机器学习 · 统计学 2022-11-22 Chen Xu , Xiuyuan Cheng , Yao Xie

Existing Graph Neural Networks (GNNs) are limited to process graphs each of whose vertices is represented by a vector or a single value, limited their representing capability to describe complex objects. In this paper, we propose the first…

机器学习 · 计算机科学 2024-07-02 Jiongshu Wang , Jing Yang , Jiankang Deng , Hatice Gunes , Siyang Song

Unsupervised (or self-supervised) graph representation learning is essential to facilitate various graph data mining tasks when external supervision is unavailable. The challenge is to encode the information about the graph structure and…

机器学习 · 计算机科学 2020-09-16 Costas Mavromatis , George Karypis
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