This book constitutes the refereed proceedings of the 18th International Symposium, KSS 2017, held in Bangkok, Thailand, in November 2017. The 21 revised full papers presented were carefully reviewed and selected from 63 submissions. This year KSS 2017 provides opportunities for presenting interesting new research results, facilitating interdisciplinary discussions, and leading to knowledge transfer under the theme of "Artificial Intelligence and Information Systems for Knowledge, Technology and Service Management".