Automatic Parsing and Utilization of System Log Features in Log Analysis: A Survey

System logs are almost the only data that records system operation information, so they play an important role in anomaly analysis, intrusion detection, and situational awareness. However, it is still a challenge to obtain effective from massive logs. On one hand, unstructured data, and, on other log cannot be directly analyzed calculated by computers. In order deal with these problems, current researchers digitize through two key steps of parsing feature extraction. This paper classifies, analyzes, summarizes analysis research terms extraction investigating articles recent years (including ICSE, TKDD, ICDE, IJCAI, ISSRE, ICDM, ICWS, ICSME, etc.). Finally, combination existing research, prospects field elaborated predicted.