The workshop will be held at conference rooms of Raio-sha, a building in the Hiyoshi Campus of Keio University. The Hiyoshi Campus is easily accessible by Tokyu - Toyoko Line (Hiyoshi station, 1 minute walk).
For detailed information, please visit the following websites of Keio University:

(0) Keio University English Homepage:
http://www.keio.ac.jp/index-en.html

(1) Location of the Hiyoshi campus and the campus map:
http://www.keio.ac.jp/accessmaps/index.html
The Raio-sha is shown in the map as building No.10.

(2) How to get to the Hiyoshi Campus from various places (Narita Airport etc.): http://www.keio.ac.jp/accessmaps/hiyoshi.html