Published: 2026

Domain-augmented large language models for automated root cause classification of offshore process incidents

CATEGORIES

RISK-BASED PROCESS SAFETY ELEMENTS

Research Summary

This paper presents domain-adapted large language models (augmented via specialized prompting, retrieval, or fine-tuning with process safety knowledge) for the automated classification of root causes from unstructured offshore process incident narratives. It tackles domain-specific challenges including technical terminology, multi-label causal attribution, hallucination risks, and alignment with established taxonomies or investigation frameworks. Relevance to PSM: Offshore facilities present complex, high-consequence process safety risks (hydrocarbon releases, well control events, fires/explosions). Automating accurate and auditable root cause classification accelerates investigation cycles, enables consistent application of lessons across assets, supports quantitative trending of causal categories, and frees subject-matter experts to focus on higher-value judgment and corrective action development—while incorporating guardrails for safety-critical use. Note: Users of the ABS Group Root Cause Map™ will find this paper presents an interesting extension of that technique.

AUTHORS

Haoyu Yang, Chi-Yang Li, Qingsheng Wang

CITATIONS

H. Yang, C.-Y. Li, and Q. Wang, "Domain-augmented large language models for automated root cause classification of offshore process incidents," Journal of Loss Prevention in the Process Industries, vol. 99, p. 105845, 2026, doi: 10.1016/j.jlp.2025.105845.

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