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Let’s read the log: root cause analysis of railway test execution logs with large language models

Aug 2026 · Innovations in Systems and Software Engineering · Vol 22 · 0 citations · 46 references

TL;DR

Results showed that long-context LLMs tended to achieve higher accuracy than smaller models, suggesting that LLMs are currently better suited to support human-in-the-loop root cause analysis than to fully automate it, and motivating further work to improve prediction accuracy for log-based RCA.

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