The NTCIR project, organized by the National Institute of Informatics (NII) in Japan, has been a key platform for information retrieval (IR) and natural language processing (NLP) research since 1997. NTCIR-18, running from January 2024 to June 2025, features seven core tasks and three pilot tasks covering LLM evaluation, advanced IR, domain-specific NLP, and personal data management. A total of 113 teams worldwide participated, registering 178 times across tasks. This paper provides an overview of NTCIR-18, highlighting its objectives, methodologies, and key findings, along with future directions.
Chen et al. (Fri,) studied this question.