Predictive diagnostics of computer systems logs using natural language processing techniques

This study aims to develop and validate a method for predictive diagnostics and anomaly detection in computer system logs, using the Vertica database as a case study. The proposed approach is based on semisupervised learning combined with natural language processing techniques. A specialized parser...

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Vydáno v:Discrete and continuous models and applied computational science Ročník 33; číslo 2; s. 172 - 183
Hlavní autoři: Kiriachek, Vladislav A., Salpagarov, Soltan I.
Médium: Journal Article
Jazyk:angličtina
Vydáno: Peoples’ Friendship University of Russia (RUDN University) 15.07.2025
Témata:
anomaly detection
log analysis
machine learning
natural language processing
predictive diagnostics
ISSN:2658-4670, 2658-7149
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Shrnutí:This study aims to develop and validate a method for predictive diagnostics and anomaly detection in computer system logs, using the Vertica database as a case study. The proposed approach is based on semisupervised learning combined with natural language processing techniques. A specialized parser utilizing a semantic graph was developed for data preprocessing. Vectorization was performed using the fastText NLP library and TF-IDF weighting. Empirical validation was conducted on real Vertica log files from a large IT company, containing periods of normal operation and anomalies leading to failures. A comparative assessment of various anomaly detection algorithms was performed, including k-nearest neighbors, autoencoders, One Class SVM, Isolation Forest, Local Outlier Factor, and Elliptic Envelope. Results are visualized through anomaly graphs depicting time intervals exceeding the threshold level. The findings demonstrate high efficacy of the proposed approach in identifying anomalies preceding system failures and delineate promising directions for further research.
ISSN:2658-4670
2658-7149
DOI:10.22363/2658-4670-2025-33-2-172-183