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Multivariate time series anomaly detection has been extensively studied under the semi-supervised setting, where a training dataset with all normal instances is required. However, preparing such a dataset is very laborious since each single…

机器学习 · 计算机科学 2023-06-21 Qihang Zhou , Jiming Chen , Haoyu Liu , Shibo He , Wenchao Meng

Monitoring the interaction behaviors of network traffic flows and detecting unwanted Internet applications and anomalous flows have become a challenging problem, since many applications obfuscate their network traffic flow using…

网络与互联网体系结构 · 计算机科学 2019-06-26 Jin-Fa Wang , Hai Zhao , Shuai-Zong Si , Hao Yu , Shuai Chao , Xuan He

For the traditional denial-of-service attack detection methods have complex algorithms and high computational overhead, which are difficult to meet the demand of online detection; and the experimental environment is mostly a simulation…

密码学与安全 · 计算机科学 2022-06-02 Yu Fu , Xueyuan Duan , Kun Wang , Bin Li

Unlike the traditional dock-based systems, dockless bike-sharing systems are more convenient for users in terms of flexibility. However, the flexibility of these dockless systems comes at the cost of management and operation complexity.…

机器学习 · 计算机科学 2020-04-14 Jingjing Gu , Qiang Zhou , Jingyuan Yang , Yanchi Liu , Fuzhen Zhuang , Yanchao Zhao , Hui Xiong

With the development of society, time series anomaly detection plays an important role in network and IoT services. However, most existing anomaly detection methods directly analyze time series in the time domain and cannot distinguish some…

人工智能 · 计算机科学 2024-12-04 Yi-Xiang Lu , Xiao-Bo Jin , Jian Chen , Dong-Jie Liu , Guang-Gang Geng

This paper addresses the problem of detecting anomalous activity in traffic networks where the network is not directly observed. Given knowledge of what the node-to-node traffic in a network should be, any activity that differs…

统计方法学 · 统计学 2019-02-20 Elizabeth Hou , Yasin Yilmaz , Alfred Hero

Cybersecurity remains a critical challenge in the digital age, with network traffic flow anomaly detection being a key pivotal instrument in the fight against cyber threats. In this study, we address the prevalent issue of data integrity in…

机器学习 · 计算机科学 2024-07-04 Adrian Pekar , Richard Jozsa

Streaming anomaly detection refers to the problem of detecting anomalous data samples in streams of data. This problem poses challenges that classical and deep anomaly detection methods are not designed to cope with, such as conceptual…

机器学习 · 计算机科学 2022-10-12 Joseph Gallego-Mejia , Oscar Bustos-Brinez , Fabio Gonzalez

Nowadays, many cities are equipped with surveillance systems and traffic control centers to monitor vehicular traffic for road safety and efficiency. The monitoring process is mostly done manually which is inefficient and expensive. In…

机器学习 · 计算机科学 2021-08-30 Sepehr Sabour , Sanjeev Rao , Majid Ghaderi

As the default protocol for exchanging routing reachability information on the Internet, the abnormal behavior in traffic of Border Gateway Protocols (BGP) is closely related to Internet anomaly events. The BGP anomalous detection model…

机器学习 · 计算机科学 2021-12-28 Songtao Peng , Jiaqi Nie , Xincheng Shu , Zhongyuan Ruan , Lei Wang , Yunxuan Sheng , Qi Xuan

In recent years, the digitization and automation of anti-financial crime (AFC) investigative processes have faced significant challenges, particularly the need for interpretability of AI model results and the lack of labeled data for…

Traffic prediction is an indispensable component of urban planning and traffic management. Achieving accurate traffic prediction hinges on the ability to capture the potential spatio-temporal relationships among road sensors. However, the…

机器学习 · 计算机科学 2025-03-13 Chaoqun Liu , Xuanpeng Li , Chen Gong , Guangyu Li

Broad spectrum of urban activities including mobility can be modeled as temporal networks evolving over time. Abrupt changes in urban dynamics caused by events such as disruption of civic operations, mass crowd gatherings, holidays and…

The objective of this is to develop a Fuzzy aided Application layer Semantic Intrusion Detection System (FASIDS) which works in the application layer of the network stack. FASIDS consist of semantic IDS and Fuzzy based IDS. Rule based IDS…

密码学与安全 · 计算机科学 2010-07-15 S. Sangeetha , V. Vaidehi

Cooperatively utilizing both ego-vehicle and infrastructure sensor data can significantly enhance autonomous driving perception abilities. However, the uncertain temporal asynchrony and limited communication conditions can lead to fusion…

计算机视觉与模式识别 · 计算机科学 2023-11-06 Haibao Yu , Yingjuan Tang , Enze Xie , Jilei Mao , Ping Luo , Zaiqing Nie

It is difficult to implement an efficient detection approach for Intrusion Detection Systems (IDS) and many factors contribute to this challenge. One such challenge concerns establishing adequate boundaries and finding a proper data source.…

网络与互联网体系结构 · 计算机科学 2018-11-26 Mohammad Almseidin , Mouhammd Alkasassbeh , Szilveszter Kovacs

We present five methods to the problem of network anomaly detection. These methods cover most of the common techniques in the anomaly detection field, including Statistical Hypothesis Tests (SHT), Support Vector Machines (SVM) and…

机器学习 · 统计学 2013-09-20 Jing Wang , Daniel Rossell , Christos G. Cassandras , Ioannis Ch. Paschalidis

In recent years, traffic flow prediction has played a crucial role in the management of intelligent transportation systems. However, traditional prediction methods are often limited by static spatial modeling, making it difficult to…

机器学习 · 计算机科学 2025-01-09 Mei Wu , Wenchao Weng , Jun Li , Yiqian Lin , Jing Chen , Dewen Seng

Introducing Internet traffic anomaly detection mechanism based on large deviations results for empirical measures. Using past traffic traces we characterize network traffic during various time-of-day intervals, assuming that it is…

网络与互联网体系结构 · 计算机科学 2013-08-27 A. S. Syed Navaz , S. Gopalakrishnan , R. Meena

Accurate prediction of traffic flow parameters and real time identification of congestion states are essential for the efficient operation of intelligent transportation systems. This paper proposes a Periodic Pattern Transformer Network…

机器学习 · 计算机科学 2025-06-16 Hongrui Kou , Jingkai Li , Ziyu Wang , Zhouhang Lv , Yuxin Zhang , Cheng Wang