TRGATLog：基于日志时间图注意力网络的日志异常检测方法.

In order to solve the problem that the existing log anomaly detection methods tend to focus only on the single feature of the quantitative relationship mode or the sequential mode, ignoring the relationship of the log time structure and the interrelation between different features, resulting in a high error detection rate and false positive rate, this paper proposed a log anomaly detection method based on the log time graph attention network. Firstly, this paper constructed a log time graph by designing a joint feature extraction module of log semantics and time structure, which effectively integrated the time structure relationship and semantic information of log. Secondly, it constructed the time relationship graph attention network, and used the graph structure to describe the time structure relationship between logs, which could adaptively learn the importance of different logs and carry out anomaly detection. Finally, it used three public datasets to verify the effectiveness of the model. Extensive experiments results indicate that the proposed method is able to effectively capture the temporal structure relationships in the logs, thereby improving the accuracy of anomaly detection. [ABSTRACT FROM AUTHOR]