Search Results for author: Lansheng Han

Found 9 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.

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.

MTS-DVGAN: Anomaly Detection in Cyber-Physical Systems using a Dual Variational Generative Adversarial Network

no code implementations4 Nov 2023 Haili Sun, Yan Huang, Lansheng Han, Cai Fu, Hongle Liu, Xiang Long

Then, by exploiting the distribution property and modeling the normal patterns of multivariate time series, a variational autoencoder is introduced to force the generative adversarial network (GAN) to generate diverse samples.

Anomaly Detection Generative Adversarial Network +1

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

Gödel's Sentence Is An Adversarial Example But Unsolvable

no code implementations25 Feb 2020 Xiaodong Qi, Lansheng Han

In this paper, we will show the reason for the existence of adversarial examples is there are non-isomorphic natural explanations that can all explain data set.

Sentence

A Fixed point view: A Model-Based Clustering Framework

no code implementations19 Feb 2020 Jianhao Ding, Lansheng Han

With the inflation of the data, clustering analysis, as a branch of unsupervised learning, lacks unified understanding and application of its mathematical law.

Clustering

Cannot find the paper you are looking for? You can Submit a new open access paper.