Visa
A visa for Japan may be needed for attending the conference, e.g., for citizens of China, India, and Russia. See the visa website of the Japanese government for the exact rules for short-term stay visas. If a visa is needed, please get in touch with your local Japanese consulate as soon as possible; the whole process may take several months. Feel free to contact the Tokyo local arrangements team at ccc16local@is.titech.ac.jp if you need a letter to obtain your visa.