Just a quick note to help you navigate the Hong Kong polytechnic campus (poly u):
*the campus is connected to the hung hom mtr station via walkways (but it's a big station, so leave yourself some time) * you can also enter from the other side, from Chatham road * the wikimania buildings, which are the Jockey club auditorium (jca) and the N, M, and TU buildings are roughly in the middle of the campus.
*When you see a room number that begins with a letter, like N002, that means it is a room in the "N" building. There are giant letters on the side of each building to say which it is. The rooms in TU are in between the "T" and "U" buildings :) there will of course also be signs and volunteers to help you navigate.
Best, Phoebe