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相关论文: Graph Attention Networks for Anti-Spoofing

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Automatic speaker verification systems are vulnerable to a variety of access threats, prompting research into the formulation of effective spoofing detection systems to act as a gate to filter out such spoofing attacks. This study…

声音 · 计算机科学 2022-11-21 Zhenyu Wang , John H. L. Hansen

We propose the joint graph attention neural network (GAT), clustering with adaptive neighbors (CAN) and probabilistic graphical model for dynamic power flow analysis and fault characteristics. In fact, computational efficiency is the main…

机器学习 · 计算机科学 2025-03-25 Tan Le , Van Le

This work presents a novel back-end framework for speaker verification using graph attention networks. Segment-wise speaker embeddings extracted from multiple crops within an utterance are interpreted as node representations of a graph. The…

音频与语音处理 · 电气工程与系统科学 2021-02-09 Jee-weon Jung , Hee-Soo Heo , Ha-Jin Yu , Joon Son Chung

Graph Attention Network (GAT) and GraphSAGE are neural network architectures that operate on graph-structured data and have been widely studied for link prediction and node classification. One challenge raised by GraphSAGE is how to smartly…

机器学习 · 计算机科学 2020-06-09 Anderson de Andrade , Chen Liu

Graph attention networks (GATs) are widely used and often appear robust to noise in node covariates and edges, yet rigorous statistical guarantees demonstrating a provable advantage of GATs over non-attention graph neural networks~(GNNs)…

机器学习 · 统计学 2026-02-02 Somak Laha , Suqi Liu , Morgane Austern

Managing microservice architectures in distributed systems is complex and resource intensive due to the high frequency and dynamic nature of inter service interactions. Accurate prediction of these future interactions can enhance adaptive…

机器学习 · 计算机科学 2025-01-28 Ghazal Khodabandeh , Alireza Ezaz , Majid Babaei , Naser Ezzati-Jivan

Graph Neural Networks (GNNs) are deep learning methods which provide the current state of the art performance in node classification tasks. GNNs often assume homophily -- neighboring nodes having similar features and labels--, and therefore…

机器学习 · 计算机科学 2021-10-26 Liheng Ma , Reihaneh Rabbany , Adriana Romero-Soriano

Graph Attention Networks(GATs) are useful deep learning models to deal with the graph data. However, recent works show that the classical GAT is vulnerable to adversarial attacks. It degrades dramatically with slight perturbations.…

机器学习 · 计算机科学 2022-08-05 Xianchen Zhou , Yaoyun Zeng , Hongxia Wang

Graph Attention Network (GAT) is a graph neural network which is one of the strategies for modeling and representing explicit syntactic knowledge and can work with pre-trained models, such as BERT, in downstream tasks. Currently, there is…

计算与语言 · 计算机科学 2023-05-24 Yuqian Dai , Serge Sharoff , Marc de Kamps

Fake news detection is a significant challenge in the digital age, which has become increasingly important with the proliferation of social media and online communication networks. Graph Neural Networks (GNN)-based methods have shown high…

机器学习 · 计算机科学 2025-02-12 Batool Lakzaei , Mostafa Haghir Chehreghani , Alireza Bagheri

Graph Attention Network (GAT) is one of the most popular Graph Neural Network (GNN) architecture, which employs the attention mechanism to learn edge weights and has demonstrated promising performance in various applications. However, since…

机器学习 · 计算机科学 2024-03-05 Qincheng Lu , Jiaqi Zhu , Sitao Luan , Xiao-Wen Chang

Inductive representation learning on temporal graphs is an important step toward salable machine learning on real-world dynamic networks. The evolving nature of temporal dynamic graphs requires handling new nodes as well as capturing…

机器学习 · 计算机科学 2020-02-20 Da Xu , Chuanwei Ruan , Evren Korpeoglu , Sushant Kumar , Kannan Achan

Studying peer relationships is crucial in solving complex challenges underserved communities face and designing interventions. The effectiveness of such peer-based interventions relies on accurate network data regarding individual…

社会与信息网络 · 计算机科学 2025-03-27 Ajitesh Srivastava , Aryan Shetty , Eric Rice

Vision transformers (ViT) have made substantial progress for classification tasks in computer vision. Recently, Gong et. al. '21, introduced attention-based modeling for several audio tasks. However, relatively unexplored is the use of a…

声音 · 计算机科学 2024-07-08 Chirag Goel , Surya Koppisetti , Ben Colman , Ali Shahriyari , Gaurav Bharaj

Many endeavors have sought to develop countermeasure techniques as enhancements on Automatic Speaker Verification (ASV) systems, in order to make them more robust against spoof attacks. As evidenced by the latest ASVspoof 2019…

声音 · 计算机科学 2021-09-21 Amir Mohammad Rostami , Mohammad Mehdi Homayounpour , Ahmad Nickabadi

Due to the cost of labeling nodes, classifying a node in a sparsely labeled graph while maintaining the prediction accuracy deserves attention. The key point is how the algorithm learns sufficient information from more neighbors with…

机器学习 · 计算机科学 2020-04-10 Chaojie Ji , Ruxin Wang , Rongxiang Zhu , Yunpeng Cai , Hongyan Wu

Temporal networks have been widely used to model real-world complex systems such as financial systems and e-commerce systems. In a temporal network, the joint neighborhood of a set of nodes often provides crucial structural information…

机器学习 · 计算机科学 2022-12-02 Yuhong Luo , Pan Li

We consider a setting where multiple entities inter-act with each other over time and the time-varying statuses of the entities are represented as multiple correlated time series. For example, speed sensors are deployed in different…

机器学习 · 计算机科学 2021-03-23 Razvan-Gabriel Cirstea , Chenjuan Guo , Bin Yang

As one of the most popular GNN architectures, the graph attention networks (GAT) is considered the most advanced learning architecture for graph representation and has been widely used in various graph mining tasks with impressive results.…

机器学习 · 计算机科学 2023-01-18 Jingbo Zhou , Yixuan Du , Ruqiong Zhang , Rui Zhang

Fact verification tasks aim to identify the integrity of textual contents according to the truthful corpus. Existing fact verification models usually build a fully connected reasoning graph, which regards claim-evidence pairs as nodes and…

机器学习 · 计算机科学 2024-05-20 Yuqing Lan , Zhenghao Liu , Yu Gu , Xiaoyuan Yi , Xiaohua Li , Liner Yang , Ge Yu