Search Results for author: Wenchao Meng

Found 4 papers, 2 papers with code

Large Language Model Guided Knowledge Distillation for Time Series Anomaly Detection

no code implementations26 Jan 2024 Chen Liu, Shibo He, Qihang Zhou, Shizhong Li, Wenchao Meng

To overcome the limitation, we propose \textbf{AnomalyLLM}, a knowledge distillation-based time series anomaly detection approach where the student network is trained to mimic the features of the large language model (LLM)-based teacher network that is pretrained on large-scale datasets.

Anomaly Detection Knowledge Distillation +4

Label-Free Multivariate Time Series Anomaly Detection

1 code implementation17 Dec 2023 Qihang Zhou, Shibo He, Haoyu Liu, Jiming Chen, Wenchao Meng

In this paper, we propose MTGFlow, an unsupervised anomaly detection approach for MTS anomaly detection via dynamic Graph and entity-aware normalizing Flow.

Density Estimation Graph structure learning +4

Detecting Multivariate Time Series Anomalies with Zero Known Label

2 code implementations3 Aug 2022 Qihang Zhou, Jiming Chen, Haoyu Liu, Shibo He, Wenchao Meng

Multivariate time series anomaly detection has been extensively studied under the semi-supervised setting, where a training dataset with all normal instances is required.

Density Estimation Graph structure learning +3

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