Conformal k-NN Anomaly Detector for Univariate Data Streams
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Abstract (arXiv)
Anomalies in time-series data give essential and often actionable information in many applications. In this paper we consider a model-free anomaly detection method for univariate time-series which adapts to non-stationarity in the data stream and provides probabilistic abnormality scores based on the conformal prediction paradigm. Despite its simplicity the method performs on par with complex prediction-based models on the Numenta Anomaly Detection benchmark and the Yahoo! S5 dataset.
Key facts. Cited by 13 papers in the map (data through 7 Oct 2026). First posted on arXiv 11 Jun 2017.
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Citing papers per year: 2021: 5; 2022: 2; 2023: 1; 2024: 4; 2025: 1.
13 papers.
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- 2021Testing for Outliers with Conformal p-valuescited by 133
- 2023Uncertainty Quantification over Graph with Conformalized Graph Neural Networkscited by 79
- 2022Integrative conformal p-values for powerful out-of-distribution testing with labeled outlierscited by 19
- 2021Anomalous Edge Detection in Edge Exchangeable Social Network Modelscited by 17
- 2021Conformal Anomaly Detection on Spatio-Temporal Observations with Missing Datacited by 12
- 2021A Distance-based Anomaly Detection Framework for Deep Reinforcement Learningcited by 5
- 2024Leave-One-Out-, Bootstrap- and Cross-Conformal Anomaly Detectorscited by 4
- 2024Harnessing Feature Clustering For Enhanced Anomaly Detection With Variational Autoencoder And Dynamic Thresholdcited by 3
- 2022CODiT: Conformal Out-of-Distribution Detection in Time-Series Datacited by 2
- 2024A Survey of Anomaly Detection in In-Vehicle Networkscited by 1
- 2021Detection of Dataset Shifts in Learning-Enabled Cyber-Physical Systems using Variational Autoencoder for Regressioncited by 0
- 2024A task of anomaly detection for a smart satellite Internet of things systemcited by 0
1 more
- 2025On the Adversarial Robustness of Learning-based Conformal Novelty Detection1 Oct 2025
- 2024A Survey of Anomaly Detection in In-Vehicle Networks11 Sep 2024
- 2024Harnessing Feature Clustering For Enhanced Anomaly Detection With Variational Autoencoder And Dynamic Threshold14 Jul 2024
- 2024A task of anomaly detection for a smart satellite Internet of things system21 Mar 2024
- 2024Leave-One-Out-, Bootstrap- and Cross-Conformal Anomaly Detectors26 Feb 2024
- 2023Uncertainty Quantification over Graph with Conformalized Graph Neural Networks23 May 2023
- 2022Integrative conformal p-values for powerful out-of-distribution testing with labeled outliers23 Aug 2022
- 2022CODiT: Conformal Out-of-Distribution Detection in Time-Series Data24 Jul 2022
- 2021Anomalous Edge Detection in Edge Exchangeable Social Network Models27 Sep 2021
- 2021A Distance-based Anomaly Detection Framework for Deep Reinforcement Learning21 Sep 2021
- 2021Conformal Anomaly Detection on Spatio-Temporal Observations with Missing Data25 May 2021
- 2021Testing for Outliers with Conformal p-values16 Apr 2021
- 2021Testing for Outliers with Conformal p-valuescited by 133
- 2023Uncertainty Quantification over Graph with Conformalized Graph Neural Networkscited by 79
- 2022Integrative conformal p-values for powerful out-of-distribution testing with labeled outlierscited by 19
- 2021Anomalous Edge Detection in Edge Exchangeable Social Network Modelscited by 17
- 2021Conformal Anomaly Detection on Spatio-Temporal Observations with Missing Datacited by 12
- 2021A Distance-based Anomaly Detection Framework for Deep Reinforcement Learningcited by 5
- 2024Leave-One-Out-, Bootstrap- and Cross-Conformal Anomaly Detectorscited by 4
- 2024Harnessing Feature Clustering For Enhanced Anomaly Detection With Variational Autoencoder And Dynamic Thresholdcited by 3
- 2022CODiT: Conformal Out-of-Distribution Detection in Time-Series Datacited by 2
- 2024A Survey of Anomaly Detection in In-Vehicle Networkscited by 1
- 2021Detection of Dataset Shifts in Learning-Enabled Cyber-Physical Systems using Variational Autoencoder for Regressioncited by 0
- 2024A task of anomaly detection for a smart satellite Internet of things systemcited by 0
12 most cited of 13 All 13 (JSON)
- 2025On the Adversarial Robustness of Learning-based Conformal Novelty Detection1 Oct 2025
- 2024A Survey of Anomaly Detection in In-Vehicle Networks11 Sep 2024
- 2024Harnessing Feature Clustering For Enhanced Anomaly Detection With Variational Autoencoder And Dynamic Threshold14 Jul 2024
- 2024A task of anomaly detection for a smart satellite Internet of things system21 Mar 2024
- 2024Leave-One-Out-, Bootstrap- and Cross-Conformal Anomaly Detectors26 Feb 2024
- 2023Uncertainty Quantification over Graph with Conformalized Graph Neural Networks23 May 2023
- 2022Integrative conformal p-values for powerful out-of-distribution testing with labeled outliers23 Aug 2022
- 2022CODiT: Conformal Out-of-Distribution Detection in Time-Series Data24 Jul 2022
- 2021Anomalous Edge Detection in Edge Exchangeable Social Network Models27 Sep 2021
- 2021A Distance-based Anomaly Detection Framework for Deep Reinforcement Learning21 Sep 2021
- 2021Conformal Anomaly Detection on Spatio-Temporal Observations with Missing Data25 May 2021
- 2021Testing for Outliers with Conformal p-values16 Apr 2021
12 newest of 13 All 13 (JSON)