Search Results for author: Chunjie Zhou

Found 7 papers, 0 papers with code

HCL-MTSAD: Hierarchical Contrastive Consistency Learning for Accurate Detection of Industrial Multivariate Time Series Anomalies

no code implementations12 Apr 2024 Haili Sun, Yan Huang, Lansheng Han, Cai Fu, Chunjie Zhou

To address this issue, we propose a novel self-supervised hierarchical contrastive consistency learning method for detecting anomalies in MTS, named HCL-MTSAD.

Anomaly Detection Contrastive Learning +1

Unsupervised Spatio-Temporal State Estimation for Fine-grained Adaptive Anomaly Diagnosis of Industrial Cyber-physical Systems

no code implementations5 Mar 2024 Haili Sun, Yan Huang, Lansheng Han, Cai Fu, Chunjie Zhou

Subsequently, based on these two types of state matrices, a three-branch structure of series-temporal-spatial attention module is designed to simultaneously capture the series, temporal, and space dependencies among MTS.

Feature Selection Based on Orthogonal Constraints and Polygon Area

no code implementations25 Feb 2024 Zhenxing Zhang, Jun Ge, Zheng Wei, Chunjie Zhou, Yilei Wang

To address this problem, this paper introduces a novel orthogonal regression model incorporating the area of a polygon.

Dimensionality Reduction feature selection

Research and application of Transformer based anomaly detection model: A literature review

no code implementations14 Feb 2024 Mingrui Ma, Lansheng Han, Chunjie Zhou

We explore the current challenges of anomaly detection and provide detailed insights into the operating principles of Transformer and its variants in anomaly detection tasks.

Anomaly Detection

Large Language Models are Few-shot Generators: Proposing Hybrid Prompt Algorithm To Generate Webshell Escape Samples

no code implementations12 Feb 2024 Mingrui Ma, Lansheng Han, Chunjie Zhou

To address the drawbacks of weak webshell sample escape capabilities, the lack of webshell datasets with complex malicious features, and to promote the development of webshell detection technology, we propose the Hybrid Prompt algorithm for webshell escape sample generation with the help of large language models.

Few-shot Detection of Anomalies in Industrial Cyber-Physical System via Prototypical Network and Contrastive Learning

no code implementations21 Feb 2023 Haili Sun, Yan Huang, Lansheng Han, Chunjie Zhou

The rapid development of Industry 4. 0 has amplified the scope and destructiveness of industrial Cyber-Physical System (CPS) by network attacks.

Anomaly Detection Contrastive Learning

Neural-FacTOR: Neural Representation Learning for Website Fingerprinting Attack over TOR Anonymity

no code implementations26 Sep 2022 Haili Sun, Yan Huang, Lansheng Han, Xiang Long, Hongle Liu, Chunjie Zhou

TOR (The Onion Router) network is a widely used open source anonymous communication tool, the abuse of TOR makes it difficult to monitor the proliferation of online crimes such as to access criminal websites.

Representation Learning

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