TransLog: A Unified Transformer-based Framework for Log Anomaly DetectionDownload PDF

22 Sept 2022 (modified: 13 Feb 2023)ICLR 2023 Conference Withdrawn SubmissionReaders: Everyone
Keywords: System Security, Log data, Anomaly detection
Abstract: Log anomaly detection is a key component in the field of artificial intelligence for IT operations (AIOps). Considering the log data of variant domains, retraining the whole network for unknown domains is inefficient in real industrial scenarios, especially for low-resource domains. However, previous deep models merely focused on extracting the semantics of log sequences in the same domain, leading to poor generalization on multi-domain logs. To alleviate this issue, we propose a unified Transformer-based framework for Log anomaly detection (TransLog) to improve the generalization ability across different domains from a new perspective, where we establish a two-stage process including the pre-training and adapter-based tuning stage. Specifically, our model is first pre-trained on the source domain to obtain shared semantic knowledge of log data. Then, we transfer such knowledge to the target domain via shared parameters. Besides, The adapter, designed for log data, is utilized to improve migration efficiency while reducing cost. The proposed method is evaluated on three public datasets and one real-world dataset. Experimental results demonstrate that our simple yet efficient approach, with fewer trainable parameters and lower training costs in the target domain, achieves state-of-the-art performance on all benchmarks.
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