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Recently, time series classification has attracted the attention of a large number of researchers, and hundreds of methods have been proposed. However, these methods often ignore the spatial correlations among dimensions and the local…

机器学习 · 计算机科学 2024-11-28 Mingsen Du , Yanxuan Wei , Xiangwei Zheng , Cun Ji

Technologies to predict human actions are extremely important for applications such as human robot cooperation and autonomous driving. However, a majority of the existing algorithms focus on exploiting visual features of the videos and do…

计算机视觉与模式识别 · 计算机科学 2019-12-12 Bo Chen , Decai Li , Yuqing He , Chunsheng Hua

Causal inference permits us to discover covert relationships of various variables in time series. However, in most existing works, the variables mentioned above are the dimensions. The causality between dimensions could be cursory, which…

机器学习 · 计算机科学 2023-09-14 Yuanhao Liu , Dehui Du , Zihan Jiang , Anyan Huang , Yiyang Li

As cyber-physical systems grow increasingly interconnected and spatially distributed, ensuring their resilience against evolving cyberattacks has become a critical priority. Spatio-Temporal Anomaly detection plays an important role in…

机器学习 · 计算机科学 2025-07-14 Arun Vignesh Malarkkan , Haoyue Bai , Xinyuan Wang , Anjali Kaushik , Dongjie Wang , Yanjie Fu

A decision-maker must consider cofounding bias when attempting to apply machine learning prediction, and, while feature selection is widely recognized as important process in data-analysis, it could cause cofounding bias. A causal Bayesian…

机器学习 · 统计学 2020-03-02 Akihiro Yabe

Accurate flight delay prediction is crucial for the secure and effective operation of the air traffic system. Recent advances in modeling inter-airport relationships present a promising approach for investigating flight delay prediction…

计算工程、金融与科学 · 计算机科学 2024-07-23 Qihui Zhu , Shenwen Chen , Tong Guo , Yisheng Lv , Wenbo Du

Temporality, a crucial characteristic in the formation of social relationships, was used to quantify the long-term time effects of networks for link prediction models, ignoring the heterogeneity of time effects on different time scales. In…

社会与信息网络 · 计算机科学 2024-06-17 Yueran Duan , Mateusz Nurek , Qing Guan , Radosław Michalski , Petter Holme

Causal Machine Learning has emerged as a powerful tool for flexibly estimating causal effects from observational data in both industry and academia. However, causal inference from observational data relies on untestable assumptions about…

Unraveling the causal relationships among the execution of process activities is a crucial element in predicting the consequences of process interventions and making informed decisions regarding process improvements. Process discovery…

人工智能 · 计算机科学 2025-01-15 Fabiana Fournier , Lior Limonad , Inna Skarbovsky , Yuval David

The abnormal fluctuations in network traffic may indicate potential security threats or system failures. Therefore, efficient network traffic prediction and anomaly detection methods are crucial for network security and traffic management.…

机器学习 · 计算机科学 2025-07-02 Yujun Zhang , Runlong Li , Xiaoxiang Liang , Xinhao Yang , Tian Su , Bo Liu , Yan Zhou

Machine learning algorithms are designed to capture complex relationships between features. In this context, the high dimensionality of data often results in poor model performance, with the risk of overfitting. Feature selection, the…

机器学习 · 计算机科学 2023-10-18 Paolo Bonetti , Alberto Maria Metelli , Marcello Restelli

Causal discovery from time series is critical for many real-world applications, such as tracing the root causes of anomalies. Existing approaches typically rely on dataset-specific optimization, making it difficult to transfer their causal…

机器学习 · 计算机科学 2026-05-27 Biao Ouyang , Tengxue Zhang , Zhihao Zhuang , Yang Shu , Chenjuan Guo , Bin Yang

Estimating total treatment effects in the presence of network interference typically requires knowledge of the underlying interaction structure. However, in many practical settings, network data is either unavailable, incomplete, or…

统计方法学 · 统计学 2026-02-05 Albert Tan , Sadegh Shirani , James Nordlund , Mohsen Bayati

Feature selection is a crucial preprocessing step in data analytics and machine learning. Classical feature selection algorithms select features based on the correlations between predictive features and the class variable and do not attempt…

机器学习 · 计算机科学 2019-11-19 Kui Yu , Xianjie Guo , Lin Liu , Jiuyong Li , Hao Wang , Zhaolong Ling , Xindong Wu

Websites, as essential digital assets, are highly vulnerable to cyberattacks because of their high traffic volume and the significant impact of breaches. This study aims to enhance the identification of web traffic attacks by leveraging…

密码学与安全 · 计算机科学 2024-12-24 Daniel Urda , Branly Martínez , Nuño Basurto , Meelis Kull , Ángel Arroyo , Álvaro Herrero

Our society has never been more dependent on computer networks. Effective utilization of networks requires a detailed understanding of the normal background behaviors of network traffic. Large-scale measurements of networks are…

Recent advances in correlation-based sequential recommendation systems have demonstrated substantial success. Specifically, the attention-based model outperforms other RNN-based and Markov chains-based models by capturing both short- and…

信息检索 · 计算机科学 2025-10-27 Yunbo Hou , Tianle Yang , Ruijie Li , Li He , Liang Wang , Weiping Li , Bo Zheng , Guojie Song

Causal inference is a fundamental research topic for discovering the cause-effect relationships in many disciplines. However, not all algorithms are equally well-suited for a given dataset. For instance, some approaches may only be able to…

In this article, we describe the algorithms for causal structure learning from time series data that won the Causality 4 Climate competition at the Conference on Neural Information Processing Systems 2019 (NeurIPS). We examine how our…

While spatio-temporal Graph Neural Networks (GNNs) excel at modeling recurring traffic patterns, their reliability plummets during non-recurring events like accidents. This failure occurs because GNNs are fundamentally correlational models,…

人工智能 · 计算机科学 2025-11-18 Luyao Niu , Zepu Wang , Shuyi Guan , Yang Liu , Peng Sun