Information for presenters and session chairs is 
here.
GENERAL INFORMATION
- 
  Registration: Registration desk is located at the foyer of Room B
  (Solver12) of 12th floor and is open throughout the following period.
  
      October 18: 18:00 to 21:00 
        (at the foyer of Opal17 [Reception venue] of 17th floor)
      October 19:  7:30 to 17:00
      October 20:  8:00 to 17:00
      October 21:  8:00 to 13:00
   If you arrive on Wednesday, please come and register to avoid the
    Thursday morning crowd.
- 
  Name tag: Each participant will receive a name tag at
  registration. Please bring it with you at all conference events.
- 
  Receipt: A receipt for the registration fee and a certificate of
  attendance are included in the bag. By default the receipt is
  issued to the participant, but if you want it to be your
  organization, we will reissue it at the registration desk. A
  receipt of the hotel is also included for those who booked and
  paid through the registration site.
- 
  Coffee and Lunch Breaks: Food and drinks served in the foyer of
  Room A (Topaz15) and Room B (Silver12) are included in the
  registration fee.
- 
  Lunch:  DSAA2017 provides a lunch coupon that you can use to buy
    your lunch during the conference (19-21 Oct.). The restaurants
    that accept the coupon are printed on the back of the coupon.
    Please note that there is no refund for the unused portion of the
    coupon.
- 
  Wi-Fi: Wi-Fi will be available at the Conference venue during the
  whole conference. SSID and the password are given at the
  registration desk.
- 
  Mobile Phones: Please make sure to switch off your mobile phones
  during the sessions.
- 
  Emergency Contacts: Emergencies related to the conference should be
  directed to:
 +81-80-6259-6550 (Satoshi Kurihara, Local Organization Chair),
 +81-90-9312-2918 (Hiroshi Motoda, General Chair)
- 
  Banquet: The banquet in the evening of 20 Nov. is held at Grand
  Prince Hotel Takanawa (Prince Room) which is within a walking
  distance from the main conference hotel. The map is given in the
  brochure.
- 
  Currency: The currency of Japan is Yen (JPY). International credit
  cards are accepted for payments in most hotels, restaurants and
  shops. ATM machines are available throughout the city.
- 
  Electricity: Tokyo uses a 100 volt 50 Hz system with Type A plug.
- 
  Insurance: The organizers of DSAA2017 cannot be held liable for any
  injury, loss or damage occurring during the conference.