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A Semi-supervised Learning Approach for Anomaly Detection in Multidimensional Time Series Data

  • An Wang
  • , Yiming Guan
  • , Mengmeng Li
  • , Hongzhi Wang
  • , Hongqiang Wang*
  • , Sijia Zheng
  • , Xiaoqian Meng
  • , Siyan Zhu
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • Shenyang General Hospital of PLA
  • Ltd.
  • North Automatic Control Technology Research Institute

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper addresses the problem of anomaly detection in multidimensional time series data, where labeled samples are often scarce and data patterns are complex. We propose a semi-supervised learning algorithm that combines labeled and unlabeled data to enhance detection performance. To mitigate the risk of classifier degradation caused by mislabeled data, we introduce a fuzzy clustering-based selection mechanism. The algorithm selects high-confidence samples from the unlabeled data using fuzzy C-means clustering and iteratively adds them to the training set through a self-training process. Experiments on transformer oil chromatography data show that the proposed method achieves better performance than traditional semi-supervised and supervised approaches. The results demonstrate the effectiveness of integrating clustering techniques into semi-supervised learning for robust anomaly detection under limited label conditions.

Original languageEnglish
Title of host publicationGreen, Pervasive, and Cloud Computing - 19th International Conference, GPC 2024, Proceedings
EditorsXiaobo Zhou, Chen Yu, Song Guo, Jianping Wang, Xianhua Song, Zeguang Lu
PublisherSpringer Science and Business Media Deutschland GmbH
Pages123-132
Number of pages10
ISBN (Print)9789819513451
DOIs
StatePublished - 2026
Event19th International Conference on Green, Pervasive, and Cloud Computing, GPC 2024 - Macao, China
Duration: 27 Sep 202430 Sep 2024

Publication series

NameLecture Notes in Computer Science
Volume15225 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference19th International Conference on Green, Pervasive, and Cloud Computing, GPC 2024
Country/TerritoryChina
CityMacao
Period27/09/2430/09/24

Keywords

  • Anomaly Detection
  • Semi-supervised Learning
  • Time Series Data

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