Yifei DONG

I am working as a research assistant at the Athena Research and Innovation Center, under the supervision of Dr. Georgia Koutrika. My work focuses on reducing hallucinations in large language models (LLMs) and enhancing the credibility of their answers by integrating external knowledge bases. These knowledge bases can take various forms, such as relational and non-relational databases, and may be extracted from unstructured information. A practical approach is to extract triples from text and store them in knowledge graphs, enabling LLMs to access and query structured knowledge.

I graduated in 2025 with a Master’s degree in Big Data Technology from the Hong Kong University of Science and Technology, where my thesis was titled “Automated Knowledge Graph Construction and Evaluation Based on LLMs”. Prior to that, I earned my Bachelor’s degree in Information Management and Information Systems from Wuhan University in 2024, completing my thesis on “Construction and Analysis of a Knowledge Graph for Science and Technology Policy Citations”.