The CTU-Helper system is an automated question-answering system designed to assist students and prospective applicants at Can Tho University (CTU) in quickly and efficiently accessing information regarding academic reg- ulations and admissions. This system utilizes Retrieval-Augmented Generation (RAG) combined with Bi-encoder and Cross-encoder models for natural language processing. The Bi-encoder allows the system to compare user questions with questions stored in the database, thereby identifying corresponding answers. The Cross-encoder is used to assess the relevance between user questions and potential answers, ensuring the accuracy of returned results. Additionally, CTU-Helper is equipped with Semantic Router technology, which facilitates semantic classifica- tion for queries. This technology enables the system to identify the main topic of the question and forward the query to the appropriate processing model, enhanc- ing information retrieval efficiency. Evaluation results indicate that CTU-Helper achieves high performance with a Recall of 0.8683 in the information retrieval process. This demonstrates the system’s ability to effectively search and return accurate information to users.
With its outstanding advantages, CTU-Helper promises to be a valuable sup- port tool for students and applicants at CTU, facilitating easier and more conve- nient access to information. This system also opens up new research directions in applying advanced natural language processing techniques to build automated question-answering systems in the educational field.
Tạp chí: 11th International Conference on Electrical Engineering, Computer Science and Informatics (EECSI 2025), Yogyakarta, Indonesia on September 26-27, 2024
Tạp chí: The 4th International Conference on Innovations in Social Sciences Education and Engineering (ICoISSEE-4) Bandung, Indonesia, July, 20th, 2024
Tạp chí khoa học Trường Đại học Cần Thơ
Lầu 4, Nhà Điều Hành, Khu II, đường 3/2, P. Xuân Khánh, Q. Ninh Kiều, TP. Cần Thơ
Điện thoại: (0292) 3 872 157; Email: tapchidhct@ctu.edu.vn
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