The third international conference on intelligent decision science will be held during 16-18 May, 2018 in TEHRAN, IRAN. The conference is organized by Iranian Data Envelopment Analysis (DEA) association with cooperation of Iranian association of fuzzy systems. The aim of this conference is to bring together researchers (both theoreticians and practitioners) all around the world working on the following topics and related areas. Thus, scientists, engineers, students, and professionals will discuss, exchange ideas, develop collaborations between industry and academy and spread the most recent advancements in the field.