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Graph anomaly detection has long been an important problem in various domains pertaining to information security such as financial fraud, social spam and network intrusion. The majority of existing methods are performed in an unsupervised…

机器学习 · 计算机科学 2024-08-27 Xiongxiao Xu , Kaize Ding , Canyu Chen , Kai Shu

In recent years, heterogeneous graph few-shot learning has been proposed to address the label sparsity issue in heterogeneous graphs (HGs), which contain various types of nodes and edges. The existing methods have achieved good performance…

机器学习 · 计算机科学 2023-08-11 Pengfei Ding , Yan Wang , Guanfeng Liu

In this paper, we propose a novel edge-labeling graph neural network (EGNN), which adapts a deep neural network on the edge-labeling graph, for few-shot learning. The previous graph neural network (GNN) approaches in few-shot learning have…

机器学习 · 计算机科学 2019-05-07 Jongmin Kim , Taesup Kim , Sungwoong Kim , Chang D. Yoo

The recent success of graph neural networks has significantly boosted molecular property prediction, advancing activities such as drug discovery. The existing deep neural network methods usually require large training dataset for each…

机器学习 · 计算机科学 2021-02-17 Zhichun Guo , Chuxu Zhang , Wenhao Yu , John Herr , Olaf Wiest , Meng Jiang , Nitesh V. Chawla

Many few-shot learning approaches have been designed under the meta-learning framework, which learns from a variety of learning tasks and generalizes to new tasks. These meta-learning approaches achieve the expected performance in the…

机器学习 · 计算机科学 2022-01-05 Yongchun Zhu , Fuzhen Zhuang , Xiangliang Zhang , Zhiyuan Qi , Zhiping Shi , Juan Cao , Qing He

Few-shot classification aims to carry out classification given only few labeled examples for the categories of interest. Though several approaches have been proposed, most existing few-shot learning (FSL) models assume that base and novel…

计算机视觉与模式识别 · 计算机科学 2021-12-28 Yuan-Chia Cheng , Ci-Siang Lin , Fu-En Yang , Yu-Chiang Frank Wang

Realistic and diverse 3D shape generation is helpful for a wide variety of applications such as virtual reality, gaming, and animation. Modern generative models, such as GANs and diffusion models, learn from large-scale datasets and…

计算机视觉与模式识别 · 计算机科学 2023-05-22 Jingyuan Zhu , Huimin Ma , Jiansheng Chen , Jian Yuan

Meta-learning has emerged as a powerful training strategy for few-shot node classification, demonstrating its effectiveness in the transductive setting. However, the existing literature predominantly focuses on transductive few-shot node…

机器学习 · 计算机科学 2023-06-16 Hirthik Mathavan , Zhen Tan , Nivedh Mudiam , Huan Liu

This paper considers the problem of inferring image labels from images when only a few annotated examples are available at training time. This setup is often referred to as low-shot learning, where a standard approach is to re-train the…

计算机视觉与模式识别 · 计算机科学 2018-06-18 Matthijs Douze , Arthur Szlam , Bharath Hariharan , Hervé Jégou

Graphs are widely used to model the relational structure of data, and the research of graph machine learning (ML) has a wide spectrum of applications ranging from drug design in molecular graphs to friendship recommendation in social…

机器学习 · 计算机科学 2022-08-23 Kaize Ding , Jianling Wang , Jundong Li , James Caverlee , Huan Liu

Meta-learning extracts common knowledge from learning different tasks and uses it for unseen tasks. It can significantly improve tasks that suffer from insufficient training data, e.g., few shot learning. In most meta-learning methods,…

机器学习 · 计算机科学 2019-11-06 Lu Liu , Tianyi Zhou , Guodong Long , Jing Jiang , Chengqi Zhang

Few-shot node classification poses a significant challenge for Graph Neural Networks (GNNs) due to insufficient supervision and potential distribution shifts between labeled and unlabeled nodes. Self-training has emerged as a widely popular…

机器学习 · 计算机科学 2024-01-22 Fali Wang , Tianxiang Zhao , Suhang Wang

Zero-shot and few-shot learning aim to improve generalization to unseen concepts, which are promising in many realistic scenarios. Due to the lack of data in unseen domain, relation modeling between seen and unseen domains is vital for…

机器学习 · 计算机科学 2019-09-02 Chenrui Zhang , Xiaoqing Lyu , Zhi Tang

In many domains, relationships between categories are encoded in the knowledge graph. Recently, promising results have been achieved by incorporating knowledge graph as side information in hard classification tasks with severely limited…

机器学习 · 计算机科学 2021-02-16 Ethan Shen , Maria Brbic , Nicholas Monath , Jiaqi Zhai , Manzil Zaheer , Jure Leskovec

Although Graph Neural Networks (GNNs) have been successful in node classification tasks, their performance heavily relies on the availability of a sufficient number of labeled nodes per class. In real-world situations, not all classes have…

机器学习 · 计算机科学 2023-06-27 Sungwon Kim , Junseok Lee , Namkyeong Lee , Wonjoong Kim , Seungyoon Choi , Chanyoung Park

Most existing studies on few-shot learning focus on unimodal settings, where models are trained to generalize to unseen data using a limited amount of labeled examples from a single modality. However, real-world data are inherently…

计算机视觉与模式识别 · 计算机科学 2025-03-12 Zhengwei Yang , Yuke Li , Qiang Sun , Basura Fernando , Heng Huang , Zheng Wang

We propose to study the problem of few shot graph classification in graph neural networks (GNNs) to recognize unseen classes, given limited labeled graph examples. Despite several interesting GNN variants being proposed recently for node…

机器学习 · 计算机科学 2022-05-03 Jatin Chauhan , Deepak Nathani , Manohar Kaul

Few-shot learning aims to learn novel categories from very few samples given some base categories with sufficient training samples. The main challenge of this task is the novel categories are prone to dominated by color, texture, shape of…

计算机视觉与模式识别 · 计算机科学 2020-10-16 Riquan Chen , Tianshui Chen , Xiaolu Hui , Hefeng Wu , Guanbin Li , Liang Lin

Graphs are pervasive in the real-world, such as social network analysis, bioinformatics, and knowledge graphs. Graph neural networks (GNNs) have great ability in node classification, a fundamental task on graphs. Unfortunately, conventional…

机器学习 · 计算机科学 2024-09-05 Quan Li , Tianxiang Zhao , Lingwei Chen , Junjie Xu , Suhang Wang

Node classification is an essential problem in graph learning. However, many models typically obtain unsatisfactory performance when applied to few-shot scenarios. Some studies have attempted to combine meta-learning with graph neural…

机器学习 · 计算机科学 2024-07-23 Yonghao Liu , Mengyu Li , Ximing Li , Lan Huang , Fausto Giunchiglia , Yanchun Liang , Xiaoyue Feng , Renchu Guan