中文
相关论文

相关论文: Adversarial Stein Training for Graph Energy Models

200 篇论文

Developing scalable solutions for training Graph Neural Networks (GNNs) for link prediction tasks is challenging due to the high data dependencies which entail high computational cost and huge memory footprint. We propose a new method for…

机器学习 · 计算机科学 2022-01-11 Nasrullah Sheikh , Xiao Qin , Berthold Reinwald , Chuan Lei

We introduce KBGAN, an adversarial learning framework to improve the performances of a wide range of existing knowledge graph embedding models. Because knowledge graphs typically only contain positive facts, sampling useful negative…

计算与语言 · 计算机科学 2018-04-17 Liwei Cai , William Yang Wang

Graph neural networks (GNN) are a promising tool to predict magnetic properties of large multi-grain structures, which can speed up the search for rare-earth free permanent magnets. In this paper, we use our magnetic simulation data to…

Graph Neural Networks (GNNs) are powerful tools in representation learning for graphs. However, recent studies show that GNNs are vulnerable to carefully-crafted perturbations, called adversarial attacks. Adversarial attacks can easily fool…

机器学习 · 计算机科学 2020-06-30 Wei Jin , Yao Ma , Xiaorui Liu , Xianfeng Tang , Suhang Wang , Jiliang Tang

We present a new method of training energy-based models (EBMs) for anomaly detection that leverages low-dimensional structures within data. The proposed algorithm, Manifold Projection-Diffusion Recovery (MPDR), first perturbs a data point…

机器学习 · 计算机科学 2023-10-31 Sangwoong Yoon , Young-Uk Jin , Yung-Kyun Noh , Frank C. Park

Discovering distinct features and their relations from data can help us uncover valuable knowledge crucial for various tasks, e.g., classification. In neuroimaging, these features could help to understand, classify, and possibly prevent…

机器学习 · 计算机科学 2022-02-15 Usman Mahmood , Zening Fu , Vince Calhoun , Sergey Plis

Automatic material discovery with desired properties is a fundamental challenge for material sciences. Considerable attention has recently been devoted to generating stable crystal structures. While existing work has shown impressive…

机器学习 · 计算机科学 2023-02-02 Astrid Klipfel , Olivier Peltre , Najwa Harrati , Yaël Fregier , Adlane Sayede , Zied Bouraoui

This study presents a deep learning approach to predicting structural and electronic properties of materials using Graph Neural Networks (GNNs). Leveraging data from the Materials Project database, we construct graph representations of…

无序系统与神经网络 · 物理学 2024-12-20 Selva Chandrasekaran Selvaraj

Beta Basis Function Neural Network (BBFNN) is a special kind of kernel basis neural networks. It is a feedforward network typified by the use of beta function as a hidden activation function. Beta is a flexible transfer function…

机器学习 · 计算机科学 2018-11-01 Naima Chouikhi , Adel M. Alimi

Recent machine learning methods make it possible to model potential energy of atomic configurations with chemical-level accuracy (as calculated from ab-initio calculations) and at speeds suitable for molecular dynam- ics simulation. Best…

计算物理 · 物理学 2017-05-03 G. Ferré , T. Haut , K. Barros

We present GERN, a novel scalable framework for training GNNs in node classification tasks, based on effective resistance, a standard tool in spectral graph theory. Our method progressively refines the GNN weights on a sequence of random…

机器学习 · 计算机科学 2025-02-25 Francesco Bonchi , Claudio Gentile , Francesco Paolo Nerini , André Panisson , Fabio Vitale

Simultaneously achieving robust classification and high-fidelity generative modeling within a single framework presents a significant challenge. Hybrid approaches, such as Joint Energy-Based Models (JEM), interpret classifiers as EBMs but…

机器学习 · 计算机科学 2026-03-19 Xuwang Yin , Claire Zhang , Julie Steele , Nir Shavit , Tony T. Wang

Graph Neural Networks (GNNs) have already been widely used in various graph mining tasks. However, recent works reveal that the learned weights (channels) in well-trained GNNs are highly redundant, which inevitably limits the performance of…

机器学习 · 计算机科学 2023-10-05 Liang Zeng , Jin Xu , Zijun Yao , Yanqiao Zhu , Jian Li

Graph neural networks (GNNs) are shown to be successful in modeling applications with graph structures. However, training an accurate GNN model requires a large collection of labeled data and expressive features, which might be inaccessible…

机器学习 · 计算机科学 2019-06-03 Ziniu Hu , Changjun Fan , Ting Chen , Kai-Wei Chang , Yizhou Sun

Global Autoregressive Models (GAMs) are a recent proposal [Parshakova et al., CoNLL 2019] for exploiting global properties of sequences for data-efficient learning of seq2seq models. In the first phase of training, an Energy-Based model…

机器学习 · 计算机科学 2019-12-19 Tetiana Parshakova , Jean-Marc Andreoli , Marc Dymetman

Energy-based learning is a powerful learning paradigm that encapsulates various discriminative and generative approaches. An energy-based model (EBM) is typically formed of inner-model(s) that learn a combination of the different features…

机器学习 · 计算机科学 2023-06-05 Firas Laakom , Jenni Raitoharju , Alexandros Iosifidis , Moncef Gabbouj

We present Generalized Contrastive Divergence (GCD), a novel objective function for training an energy-based model (EBM) and a sampler simultaneously. GCD generalizes Contrastive Divergence (Hinton, 2002), a celebrated algorithm for…

机器学习 · 计算机科学 2023-12-07 Sangwoong Yoon , Dohyun Kwon , Himchan Hwang , Yung-Kyun Noh , Frank C. Park

The need for opponent modeling and tracking arises in several real-world scenarios, such as professional sports, video game design, and drug-trafficking interdiction. In this work, we present Graph based Adversarial Modeling with Mutal…

机器学习 · 计算机科学 2023-07-06 Sean Ye , Manisha Natarajan , Zixuan Wu , Rohan Paleja , Letian Chen , Matthew C. Gombolay

The vulnerability of deep networks to adversarial attacks is a central problem for deep learning from the perspective of both cognition and security. The current most successful defense method is to train a classifier using adversarial…

机器学习 · 统计学 2021-03-22 Mitch Hill , Jonathan Mitchell , Song-Chun Zhu

Graph neural networks (GNNs) is widely used to learn a powerful representation of graph-structured data. Recent work demonstrates that transferring knowledge from self-supervised tasks to downstream tasks could further improve graph…

机器学习 · 计算机科学 2021-07-21 Xueting Han , Zhenhuan Huang , Bang An , Jing Bai