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Mobile network operators store an enormous amount of information like log files that describe various events and users' activities. Analysis of these logs might be used in many critical applications such as detecting cyber-attacks, finding…

Machine Learning · Computer Science 2021-10-20 Aryan Mokhtari , Leyla Sadighi , Behnam Bahrak , Mojtaba Eshghie

Covariate-adaptive randomization (CAR) procedures are frequently used in comparative studies to increase the covariate balance across treatment groups. However, because randomization inevitably uses the covariate information when forming…

Statistics Theory · Mathematics 2022-07-08 Wei Ma , Yichen Qin , Yang Li , Feifang Hu

This paper proposes an innovative Attention-GAN framework for enhancing cybersecurity, focusing on anomaly detection. In response to the challenges posed by the constantly evolving nature of cyber threats, the proposed approach aims to…

Cryptography and Security · Computer Science 2024-02-29 Mohammed Abo Sen

Contrastive learning (CL) has been widely used for enhancing the performance of graph collaborative filtering (GCF) for personalized recommendation. Since data augmentation plays a crucial role in the success of CL, previous works have…

Information Retrieval · Computer Science 2025-11-05 Doyun Choi , Cheonwoo Lee , Jaemin Yoo

Identifying drawbacks or insufficiencies in terms of safety is important also in early development stages of safety critical systems. In industry, development artefacts such as components or units, are often reused from existing artefacts…

Software Engineering · Computer Science 2021-06-03 Kai Hoefig , Marc Zeller , Reiner Heilmann

The advancement of automated vehicles introduces complex safety challenges, particularly in dynamic and unpredictable environments where AI-enabled perception systems must operate reliably. Ensuring compliance with safety standards such as…

The temporal action segmentation task segments videos temporally and predicts action labels for all frames. Fully supervising such a segmentation model requires dense frame-wise action annotations, which are expensive and tedious to…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Guodong Ding , Angela Yao

The growing adoption of IoT systems in industries like transportation, banking, healthcare, and smart energy has increased reliance on sensor networks. However, anomalies in sensor readings can undermine system reliability, making real-time…

Signal Processing · Electrical Eng. & Systems 2025-06-02 Tanish Baranwal , Arnab Das , Srihari Varada , Santanu Das , Mohammad R. Haider

Existing causal inference (CI) models are often restricted to data with low-dimensional confounders and singleton actions. We propose an autoregressive (AR) CI framework capable of handling complex confounders and sequential actions…

Machine Learning · Computer Science 2025-07-08 Daniel Jiwoong Im , Kevin Zhang , Nakul Verma , Kyunghyun Cho

This systematic review focuses on anomaly detection for connected and autonomous vehicles. The initial database search identified 2160 articles, of which 203 were included in this review after rigorous screening and assessment. This study…

Machine Learning · Computer Science 2024-05-07 J. R. V. Solaas , N. Tuptuk , E. Mariconti

Prompt and accurate detection of system anomalies is essential to ensure the reliability of software systems. Unlike manual efforts that exploit all available run-time information, existing approaches usually leverage only a single type of…

Software Engineering · Computer Science 2023-02-15 Cheryl Lee , Tianyi Yang , Zhuangbin Chen , Yuxin Su , Yongqiang Yang , Michael R. Lyu

Intrusion detection systems perform post-compromise detection of security breaches whenever preventive measures such as firewalls do not avert an attack. However, these systems raise a vast number of alerts that must be analysed and triaged…

Cryptography and Security · Computer Science 2025-01-22 Herbert Maosa , Karim Ouazzane , Mohamed Chahine Ghanem

Contingency planning is the architectural capability that enables autonomous vehicles (AVs) to anticipate and mitigate discrete, high-impact hazards, such as sensor outages and adversarial interactions. This paper presents a comprehensive…

Systems and Control · Electrical Eng. & Systems 2026-01-22 Lei Zheng , Luyao Zhang , Peiqi Yu , Yifan Sun , Sergio Grammatico , Jun Ma , Changliu Liu

This study addresses the problem of anomaly detection and root cause tracing in microservice architectures and proposes a unified framework that combines graph neural networks with temporal modeling. The microservice call chain is…

Machine Learning · Computer Science 2025-11-06 Qingyuan Zhang , Ning Lyu , Le Liu , Yuxi Wang , Ziyu Cheng , Cancan Hua

Mobile network operators must monitor thousands of heterogeneous network elements across the radio access network and the packet core, each exposing high-dimensional KPI time series. The scale and cost of incident labelling make supervised…

Machine Learning · Computer Science 2026-05-04 Sara Malacarne , Eirik Hoel-Høiseth , Erlend Aune , David Zsolt Biró , Massimiliano Ruocco

We address the problem of large scale real-time classification of content posted on social networks, along with the need to rapidly identify novel spam types. Obtaining manual labels for user-generated content using editorial labeling and…

Data Structures and Algorithms · Computer Science 2020-08-26 Ishita Doshi , Sreekalyan Sajjalla , Jayesh Choudhari , Rushi Bhatt , Anirban Dasgupta

Risk matrices are widely used across a range of fields and have found increasing utility in warning decision practices globally. However, their application in this context presents challenges, which range from potentially perverse warning…

Applications · Statistics 2025-08-29 Robert J. Taggart , David J. Wilke

The vehicular connectivity revolution is fueling the automotive industry's most significant transformation seen in decades. However, as modern vehicles become more connected, they also become much more vulnerable to cyber-attacks. In this…

Cryptography and Security · Computer Science 2017-11-09 Matan Levi , Yair Allouche , Aryeh Kontorovich

Traditional anomaly detection methods aim to identify objects that deviate from most other objects by treating all features equally. In contrast, contextual anomaly detection methods aim to detect objects that deviate from other objects…

Machine Learning · Computer Science 2023-08-07 Zhong Li , Matthijs van Leeuwen

Intelligent anomaly detection in dynamic visual environments requires reconciling real-time performance with semantic interpretability. Conventional approaches address only fragments of this challenge. Reconstruction-based models capture…

Computer Vision and Pattern Recognition · Computer Science 2026-01-19 Tayyab Rehman , Giovanni De Gasperis , Aly Shmahell