Multilingual Railway Vocational Education Large Model: A Knowledge-Enhanced LLM for International Railway Engineering Education

This article introduces the knowledge-enhanced large language model (multilingual-railway-llm-edu) designed specifically for the railway engineering field. It supports cross-language Q&A and professional tutoring in Chinese, English, and Malay, aiming to solve problems such as language barriers and complex terminology in international railway vocational education, and serves scenarios of overseas railway vocational education, study-abroad training, and cross-border project collaboration.

With the advancement of the Belt and Road Initiative, Chinese railway technology is going global, and the demand for railway professionals overseas has surged. However, language barriers, complex professional terminology, and differences in education systems pose challenges to international railway vocational education. This project emerged to build a knowledge-enhanced LLM and provide trilingual intelligent support.

1. Multilingual Support: Optimized for Chinese (covering Chinese railway regulations and standards), English (international communication and document understanding), and Malay (for localized needs such as ECRL); 2. Knowledge-Enhanced Architecture: Integrates domain knowledge bases, adopts RAG technology, and establishes trilingual terminology comparison tables; 3. Application Scenarios: Overseas vocational education (principle explanation, operation training, etc.), study-abroad training (course preview, terminology translation, etc.), cross-border project collaboration (multilingual document query, specification interpretation, etc.).

Technical Architecture: Includes configs, corpus, src (core source code with modules like cli, parsers, pipeline, etc.); Core Modules: Document parser, knowledge base construction, Q&A engine, vector storage; Implementation Key Points: RAG process (preprocessing → knowledge slicing → vector encoding → retrieval enhancement → cross-language alignment); Fine-tuning strategies (domain adaptation pre-training, instruction fine-tuning, multilingual alignment training).

Contains authoritative railway field materials: 1. ECRL Traction Power Supply Equipment Operation and Maintenance Management Measures (Chinese-English comparison); 2. Comprehensive Railway Chinese-English Vocabulary Dictionary (covers professional terminology comparison tables for various fields), all of which have been professionally organized and annotated.

1. Educational Equity: Reduces language barriers, allowing non-Chinese learners to access Chinese railway technology; 2. Knowledge Inheritance: Systematizes and structures railway knowledge for easy preservation and dissemination; 3. International Cooperation: Provides support for Chinese railway technology to "go global"; 4. Talent Cultivation: Improves the efficiency and quality of overseas vocational education and cultivates local technical talents.

1. Expand to more languages of countries along the Belt and Road; 2. Establish a continuous update mechanism for the knowledge base; 3. Integrate multi-modal content such as images and videos; 4. Provide personalized learning paths.