Author

Wei Zhang

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Open access Aug 2026

Role-Aware Agentic Retrieval-Augmented Generation for Urban Rail Transit Fault Management

Urban rail transit systems require reliable decision-support methods to assist operators in handling complex fault events. Although large language models provide strong reasoning and knowledge integration capabilities, their open-ended generation may produce responses that are difficult to align with operational proced...

Wei Zhang, Hui Fang, Jiajun Bu et al. · Applied Informatics · 0 citations

Open access Sep 2026

A Multi-Stage Post-Training Framework for Domain-Specific Language Models in Fault Diagnosis

Results indicate that the proposed multi-stage post-training framework effectively improves LLM performance on real-world text-based fault diagnosis, and provides a practical and extensible solution for intelligent maintenance decision support in complex electromechanical systems.

Wei Zhang, Hui Fang, Tong-Le Wu et al. · Applied Informatics · 0 citations