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Heterophilic Graph Neural Networks (HGNNs) have shown promising results for semi-supervised learning tasks on graphs. Notably, most real-world heterophilic graphs are composed of a mixture of nodes with different neighbor patterns,…

机器学习 · 计算机科学 2025-02-26 Jinluan Yang , Zhengyu Chen , Teng Xiao , Wenqiao Zhang , Yong Lin , Kun Kuang

Heterogeneous graph neural networks (HGNNs) have been blossoming in recent years, but the unique data processing and evaluation setups used by each work obstruct a full understanding of their advancements. In this work, we present a…

机器学习 · 计算机科学 2022-01-03 Qingsong Lv , Ming Ding , Qiang Liu , Yuxiang Chen , Wenzheng Feng , Siming He , Chang Zhou , Jianguo Jiang , Yuxiao Dong , Jie Tang

Recent years have witnessed the success of heterogeneous graph neural networks (HGNNs) in modeling heterogeneous information networks (HINs). In this paper, we focus on the benchmark task of HGNNs, i.e., node classification, and empirically…

社会与信息网络 · 计算机科学 2023-04-04 Cheng Yang , Xumeng Gong , Chuan Shi , Philip S. Yu

To read the final version please go to IEEE TGRS on IEEE Xplore. Convolutional neural networks (CNNs) have been attracting increasing attention in hyperspectral (HS) image classification, owing to their ability to capture spatial-spectral…

计算机视觉与模式识别 · 计算机科学 2021-07-07 Danfeng Hong , Lianru Gao , Jing Yao , Bing Zhang , Antonio Plaza , Jocelyn Chanussot

Graph anomaly detection (GAD) aims to identify nodes from a graph that are significantly different from normal patterns. Most previous studies are model-driven, focusing on enhancing the detection effect by improving the model structure.…

机器学习 · 计算机科学 2025-01-27 Yitong Hao , Enbo He , Yue Zhang , Guisheng Yin

Can we combine heterogenous graph structure with text to learn high-quality semantic and behavioural representations? Graph neural networks (GNN)s encode numerical node attributes and graph structure to achieve impressive performance in a…

机器学习 · 计算机科学 2022-06-23 Vassilis N. Ioannidis , Xiang Song , Da Zheng , Houyu Zhang , Jun Ma , Yi Xu , Belinda Zeng , Trishul Chilimbi , George Karypis

Many real-world data can be represented as heterogeneous graphs with different types of nodes and connections. Heterogeneous graph neural network model aims to embed nodes or subgraphs into low-dimensional vector space for various…

人工智能 · 计算机科学 2024-12-24 Xinjun Cai , Jiaxing Shang , Fei Hao , Dajiang Liu , Linjiang Zheng

The highly non-linear nature of deep neural networks causes them to be susceptible to adversarial examples and have unstable gradients which hinders interpretability. However, existing methods to solve these issues, such as adversarial…

机器学习 · 计算机科学 2023-01-11 Suraj Srinivas , Kyle Matoba , Himabindu Lakkaraju , Francois Fleuret

Deep neural networks (DNNs) are powerful learning machines that have enabled breakthroughs in several domains. In this work, we introduce a new retrospective loss to improve the training of deep neural network models by utilizing the prior…

计算机视觉与模式识别 · 计算机科学 2020-06-25 Surgan Jandial , Ayush Chopra , Mausoom Sarkar , Piyush Gupta , Balaji Krishnamurthy , Vineeth Balasubramanian

In this paper we introduce Curriculum GANs, a curriculum learning strategy for training Generative Adversarial Networks that increases the strength of the discriminator over the course of training, thereby making the learning task…

机器学习 · 计算机科学 2018-07-26 Rishi Sharma , Shane Barratt , Stefano Ermon , Vijay Pande

Quantifying and predicting the long-term impact of scientific writings or individual scholars has important implications for many policy decisions, such as funding proposal evaluation and identifying emerging research fields. In this work,…

社会与信息网络 · 计算机科学 2020-03-27 Fan Zhou , Xovee Xu , Ce Li , Goce Trajcevski , Ting Zhong , Kunpeng Zhang

This work considers the problem of heterogeneous graph-level anomaly detection. Heterogeneous graphs are commonly used to represent behaviours between different types of entities in complex industrial systems for capturing as much…

机器学习 · 计算机科学 2023-08-29 Jiaxi Li , Guansong Pang , Ling Chen , Mohammad-Reza Namazi-Rad

Heterogeneous graph neural networks (HGNNs) have demonstrated strong capability in modeling complex semantics across multi-type nodes and relations. However, their scalability to large-scale graphs remains challenging due to structural…

机器学习 · 计算机科学 2025-12-12 Fuyan Ou , Siqi Ai , Yulin Hu

Heterogeneous Graph Neural Networks (HGNNs) have exhibited powerful performance in heterogeneous graph learning by aggregating information from various types of nodes and edges. However, existing heterogeneous graph models often struggle to…

机器学习 · 计算机科学 2025-09-30 Ranhui Yan , Jia cai

Graph Neural Networks (GNNs) have become a prominent approach for learning from graph-structured data. However, their effectiveness can be significantly compromised when the graph structure is suboptimal. To address this issue, Graph…

机器学习 · 计算机科学 2025-02-20 Shen Han , Zhiyao Zhou , Jiawei Chen , Zhezheng Hao , Sheng Zhou , Gang Wang , Yan Feng , Chun Chen , Can Wang

We propose a neural network training method capable of accounting for the effects of systematic variations of the data model in the training process and describe its extension towards neural network multiclass classification. The procedure…

高能物理 - 实验 · 物理学 2025-12-01 CMS Collaboration

Training neural networks is traditionally done by providing a sequence of random mini-batches sampled uniformly from the entire training data. In this work, we analyze the effect of curriculum learning, which involves the non-uniform…

机器学习 · 计算机科学 2020-12-03 Guy Hacohen , Daphna Weinshall

Lifelong learning aims to preserve knowledge acquired from previous tasks while incorporating knowledge from a sequence of new tasks. However, most prior work explores only streams of homogeneous tasks (\textit{e.g.}, only classification…

计算机视觉与模式识别 · 计算机科学 2026-03-30 Xuerui Zhang , Xuehao Wang , Zhan Zhuang , Linglan Zhao , Ziyue Li , Xinmin Zhang , Zhihuan Song , Yu Zhang

Deep learning systems are optimized for clusters with homogeneous resources. However, heterogeneity is prevalent in computing infrastructure across edge, cloud and HPC. When training neural networks using stochastic gradient descent…

机器学习 · 计算机科学 2025-03-25 Sahil Tyagi , Prateek Sharma

We present a generic and trend-aware curriculum learning approach for graph neural networks. It extends existing approaches by incorporating sample-level loss trends to better discriminate easier from harder samples and schedule them for…

计算与语言 · 计算机科学 2022-06-09 Nidhi Vakil , Hadi Amiri