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We present Graph Random Neural Features (GRNF), a novel embedding method from graph-structured data to real vectors based on a family of graph neural networks. The embedding naturally deals with graph isomorphism and preserves the metric…

机器学习 · 计算机科学 2020-06-03 Daniele Zambon , Cesare Alippi , Lorenzo Livi

Many tasks that rely on representations of nodes in graphs would benefit if those representations were faithful to distances between nodes in the graph. Geometric techniques to extract such representations have poor scaling over large graph…

机器学习 · 计算机科学 2020-06-18 Matthew Walker , Bo Yan , Yiou Xiao , Yafei Wang , Ayan Acharya

Node classification is a classical graph machine learning task on which Graph Neural Networks (GNNs) have recently achieved strong results. However, it is often believed that standard GNNs only work well for homophilous graphs, i.e., graphs…

机器学习 · 计算机科学 2024-03-05 Oleg Platonov , Denis Kuznedelev , Michael Diskin , Artem Babenko , Liudmila Prokhorenkova

Deep learning methods for graphs achieve remarkable performance across a variety of domains. However, recent findings indicate that small, unnoticeable perturbations of graph structure can catastrophically reduce performance of even the…

机器学习 · 计算机科学 2020-10-29 Xiang Zhang , Marinka Zitnik

Graphs play an important role in many applications. Recently, Graph Neural Networks (GNNs) have achieved promising results in graph analysis tasks. Some state-of-the-art GNN models have been proposed, e.g., Graph Convolutional Networks…

机器学习 · 计算机科学 2021-09-29 Yaoman Li , Irwin King

Recent years have witnessed the prosperous development of Graph Self-supervised Learning (GSSL), which enables to pre-train transferable foundation graph encoders. However, the easy-to-plug-in nature of such encoders makes them vulnerable…

密码学与安全 · 计算机科学 2024-12-10 Xiangyu Zhao , Hanzhou Wu , Xinpeng Zhang

The graph-based model can help to detect suspicious fraud online. Owing to the development of Graph Neural Networks~(GNNs), prior research work has proposed many GNN-based fraud detection frameworks based on either homogeneous graphs or…

社会与信息网络 · 计算机科学 2020-07-03 Zhiwei Liu , Yingtong Dou , Philip S. Yu , Yutong Deng , Hao Peng

Managing the threat posed by malware requires accurate detection and classification techniques. Traditional detection strategies, such as signature scanning, rely on manual analysis of malware to extract relevant features, which is labor…

机器学习 · 计算机科学 2023-03-24 Vrinda Malhotra , Katerina Potika , Mark Stamp

Many works show that node-level predictions of Graph Neural Networks (GNNs) are unrobust to small, often termed adversarial, changes to the graph structure. However, because manual inspection of a graph is difficult, it is unclear if the…

机器学习 · 计算机科学 2023-05-03 Lukas Gosch , Daniel Sturm , Simon Geisler , Stephan Günnemann

Graph neural networks (GNNs) are a popular class of machine learning models whose major advantage is their ability to incorporate a sparse and discrete dependency structure between data points. Unfortunately, GNNs can only be used when such…

机器学习 · 计算机科学 2020-06-22 Luca Franceschi , Mathias Niepert , Massimiliano Pontil , Xiao He

Graph Neural Networks (GNNs) are powerful deep learning models to generate node embeddings on graphs. When applying deep GNNs on large graphs, it is still challenging to perform training in an efficient and scalable way. We propose a novel…

机器学习 · 计算机科学 2020-10-08 Hanqing Zeng , Hongkuan Zhou , Ajitesh Srivastava , Rajgopal Kannan , Viktor Prasanna

Graph neural networks (GNNs) have shown broad applicability in a variety of domains. These domains, e.g., social networks and product recommendations, are fertile ground for malicious users and behavior. In this paper, we show that GNNs are…

机器学习 · 计算机科学 2022-09-30 Ben Finkelshtein , Chaim Baskin , Evgenii Zheltonozhskii , Uri Alon

Graph instance contrastive learning has been proved as an effective task for Graph Neural Network (GNN) pre-training. However, one key issue may seriously impede the representative power in existing works: Positive instances created by…

机器学习 · 计算机科学 2022-06-27 Xueyi Liu , Yu Rong , Tingyang Xu , Fuchun Sun , Wenbing Huang , Junzhou Huang

Graph Convolutional Networks (GCNs) have achieved impressive empirical advancement across a wide variety of semi-supervised node classification tasks. Despite their great success, training GCNs on large graphs suffers from computational and…

机器学习 · 计算机科学 2021-11-02 Weilin Cong , Morteza Ramezani , Mehrdad Mahdavi

Graph neural networks (GNNs) have drawn significant research attention recently, mostly under the setting of semi-supervised learning. When task-agnostic representations are preferred or supervision is simply unavailable, the auto-encoder…

机器学习 · 计算机科学 2022-02-21 Mingyue Tang , Carl Yang , Pan Li

Watermarking of deep neural networks (DNNs) has gained significant traction in recent years, with numerous (watermarking) strategies being proposed as mechanisms that can help verify the ownership of a DNN in scenarios where these models…

密码学与安全 · 计算机科学 2024-06-04 Giulio Pagnotta , Dorjan Hitaj , Briland Hitaj , Fernando Perez-Cruz , Luigi V. Mancini

Graph neural networks (GNNs) are an emerging model for learning graph embeddings and making predictions on graph structured data. However, robustness of graph neural networks is not yet well-understood. In this work, we focus on node…

机器学习 · 计算机科学 2019-12-24 James Fox , Sivasankaran Rajamanickam

Graph convolutional networks (GCNs) are a widely used method for graph representation learning. We investigate the power of GCNs, as a function of their number of layers, to distinguish between different random graph models on the basis of…

机器学习 · 统计学 2020-02-14 Abram Magner , Mayank Baranwal , Alfred O. Hero

A graph neural network (GNN) is a type of neural network that is specifically designed to process graph-structured data. Typically, GNNs can be implemented in two settings, including the transductive setting and the inductive setting. In…

密码学与安全 · 计算机科学 2024-05-10 Yixin Wu , Xinlei He , Pascal Berrang , Mathias Humbert , Michael Backes , Neil Zhenqiang Gong , Yang Zhang

The problem of cross-platform binary code similarity detection aims at detecting whether two binary functions coming from different platforms are similar or not. It has many security applications, including plagiarism detection, malware…

密码学与安全 · 计算机科学 2018-07-30 Xiaojun Xu , Chang Liu , Qian Feng , Heng Yin , Le Song , Dawn Song