Diection to CSE: http://web.yonsei.ac.kr/CSEgrad/Yonsei-Map_CSE.pdf
How to get to Yonsei Univ from ICN airport using Subway
From ICN airport to Hongik university subway station (Café Comma): Take the direct subway from ICN airport to Hongik university station. It will take 45 min. It comes every 7 min. The subway information is here. The Cafe Comma is located just at Exit 3 of the subway station.
From Hongick University Station to Sinchon station (one stop, 2min): Take the subway line number 2(green line).
CSE Department is located at the number 13 in Yonsei Campus map (building name: Advanced Science and Technology Center). CSE office(Tel. 02-2123-6121) is in 6th floor of that building and Seo's office is room 610 (Tel. 02-2123-6122).