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By interpreting a traffic scene as a graph of interacting vehicles, we gain a flexible abstract representation which allows us to apply Graph Neural Network (GNN) models for traffic prediction. These naturally take interaction between…

机器学习 · 计算机科学 2019-05-08 Frederik Diehl , Thomas Brunner , Michael Truong Le , Alois Knoll

Recently, Graph Convolutional Networks (GCNs) have proven to be a powerful machine learning tool for Computer-Aided Diagnosis (CADx) and disease prediction. A key component in these models is to build a population graph, where the graph…

机器学习 · 计算机科学 2022-05-16 Luca Cosmo , Anees Kazi , Seyed-Ahmad Ahmadi , Nassir Navab , Michael Bronstein

Deep neural networks (DNNs) are vulnerable to maliciously generated adversarial examples. These examples are intentionally designed by making imperceptible perturbations and often mislead a DNN into making an incorrect prediction. This…

机器学习 · 计算机科学 2018-10-10 Mengchen Liu , Shixia Liu , Hang Su , Kelei Cao , Jun Zhu

Data-centric methods have shown great potential in understanding and predicting spatiotemporal dynamics, enabling better design and control of the object system. However, deep learning models often lack interpretability, fail to obey…

机器学习 · 计算机科学 2025-01-07 Yuan Mi , Pu Ren , Hongteng Xu , Hongsheng Liu , Zidong Wang , Yike Guo , Ji-Rong Wen , Hao Sun , Yang Liu

Currently the state of the art network models are based or depend on Discrete Event Simulation (DES). While DES is highly accurate, it is also computationally costly and cumbersome to parallelize, making it unpractical to simulate high…

网络与互联网体系结构 · 计算机科学 2023-10-19 Carlos Güemes-Palau , Miquel Ferriol Galmés , Albert Cabellos-Aparicio , Pere Barlet-Ros

Granger Causality (GC) offers an elegant statistical framework to study the association between multivariate time series data. Vector autoregressive models (VAR) are simple and easy to fit, but have limited application because of their…

机器学习 · 计算机科学 2025-12-09 Malik Shahid Sultan , Hernando Ombao , Maurizio Filippone

Graph Convolutional Neural Networks (GCNNs) are the most recent exciting advancement in deep learning field and their applications are quickly spreading in multi-cross-domains including bioinformatics, chemoinformatics, social networks,…

机器学习 · 统计学 2018-08-28 Saurabh Verma , Zhi-Li Zhang

Networks are a powerful tool to model complex systems, and the definition of many Graph Neural Networks (GNN), Deep Learning algorithms that can handle networks, has opened a new way to approach many real-world problems that would be hardly…

机器学习 · 计算机科学 2021-09-28 Marco Grassia , Manlio De Domenico , Giuseppe Mangioni

Classical machine learning techniques often struggle with overfitting and unreliable predictions when exposed to novel conditions. Introducing causality into the modelling process offers a promising way to mitigate these challenges by…

计算工程、金融与科学 · 计算机科学 2025-05-28 David Zapata Gonzalez , Marcel Meyer , Oliver Mueller

Predicting drug side-effects before they occur is a key task in keeping the number of drug-related hospitalizations low and to improve drug discovery processes. Automatic predictors of side-effects generally are not able to process the…

机器学习 · 统计学 2022-12-01 Pietro Bongini , Elisa Messori , Niccolò Pancino , Monica Bianchini

Graph neural network (GNN) explanations have largely been facilitated through post-hoc introspection. While this has been deemed successful, many post-hoc explanation methods have been shown to fail in capturing a model's learned…

机器学习 · 计算机科学 2021-06-28 Donald Loveland , Shusen Liu , Bhavya Kailkhura , Anna Hiszpanski , Yong Han

In the fundamental statistics course, students are taught to remember the well-known saying: "Correlation is not Causation". Till now, statistics (i.e., correlation) have developed various successful frameworks, such as Transformer and…

人工智能 · 计算机科学 2023-11-22 Ning Xu , Yifei Gao , Hongshuo Tian , Yongdong Zhang , An-An Liu

Graph Neural Networks (GNNs) are efficient approaches to process graph-structured data. Modelling long-distance node relations is essential for GNN training and applications. However, conventional GNNs suffer from bad performance in…

机器学习 · 计算机科学 2020-05-19 Deli Chen , Xiaoqian Liu , Yankai Lin , Peng Li , Jie Zhou , Qi Su , Xu Sun

Explaining the foundations for predictions obtained from graph neural networks (GNNs) is critical for credible use of GNN models for real-world problems. Owing to the rapid growth of GNN applications, recent progress in explaining…

机器学习 · 计算机科学 2025-01-07 Hyeoncheol Cho , Youngrock Oh , Eunjoo Jeon

Explainability is crucial for the application of black-box Graph Neural Networks (GNNs) in critical fields such as healthcare, finance, cybersecurity, and more. Various feature attribution methods, especially the perturbation-based methods,…

机器学习 · 计算机科学 2024-12-31 Xingping Xian , Jianlu Liu , Chao Wang , Tao Wu , Shaojie Qiao , Xiaochuan Tang , Qun Liu

Graph Neural Networks (GNNs) have emerged as the leading paradigm for solving graph analytical problems in various real-world applications. Nevertheless, GNNs could potentially render biased predictions towards certain demographic…

机器学习 · 计算机科学 2022-11-29 Yushun Dong , Song Wang , Jing Ma , Ninghao Liu , Jundong Li

Graph Neural Networks (GNNs) are widely used deep learning models that learn meaningful representations from graph-structured data. Due to the finite nature of the underlying recurrent structure, current GNN methods may struggle to capture…

机器学习 · 计算机科学 2021-06-02 Fangda Gu , Heng Chang , Wenwu Zhu , Somayeh Sojoudi , Laurent El Ghaoui

Intrinsic interpretability of graph neural networks (GNNs) is to find a small subset of the input graph's features -- rationale -- which guides the model prediction. Unfortunately, the leading rationalization models often rely on data…

机器学习 · 计算机科学 2022-02-01 Ying-Xin Wu , Xiang Wang , An Zhang , Xiangnan He , Tat-Seng Chua

Volatility forecasting is essential for risk management and decision-making in financial markets. Traditional models like Generalized Autoregressive Conditional Heteroskedasticity (GARCH) effectively capture volatility clustering but often…

数理金融 · 定量金融 2024-10-23 Pulikandala Nithish Kumar , Nneka Umeorah , Alex Alochukwu

Parametric causal modelling techniques rarely provide functionality for counterfactual estimation, often at the expense of modelling complexity. Since causal estimations depend on the family of functions used to model the data, simplistic…

机器学习 · 统计学 2020-06-16 Álvaro Parafita , Jordi Vitrià