This book constitutes the refereed proceedings of the 24th International Symposium on Knowledge and Systems Sciences, KSS 2025, held in Kitakyushu, Japan, during November 28 – December 1, 2025.The 29 full papers presented in this book were carefully reviewed and selected from 74 submissions.

This book constitutes the refereed proceedings of the 24th International Symposium on Knowledge and Systems Sciences, KSS 2025, held in Kitakyushu, Japan, during November 28 – December 1, 2025.The 29 full papers presented in this book were carefully reviewed and selected from 74 submissions.