How to Participate to NTCIR-18 Task(s)


To participate in the 18th NTCIR, please read through What participants must do page, and Task Description page as well as call for participation and task definition pages of each task. The information available on this site will be updated occasionally. The major update will be announced through the mailing list, but we strongly recommend you to visit this site periodically.


  • Online Registration

Participate Procedure:

To participate in the 18th NTCIR, please Register through online registration.

* If you need any change for registration, please see here.



Please register through online registration. Multiple tasks can be selected by a single registration.

Email addresses:
Email addresses input in the registration form will be added to the following four mailing lists of the NTCIR.

  • information on the NTCIR projects. The members are previous NTCIRs' participants, NTCIR test collection users, anyone who are interested in NTCIR activities, etc.. Moderated)

  • (For participants that signed up with one or more NTCIR-18 tasks. Moderated.)

  • open discussion list for the task

  • task's participants list

Correct email address please!:

If your email address and other contact information input in the form is not correct, you may not be able to obtain the necessary information and resources to conduct the task(s). Please fill out all the information in the form(s) carefully.

Please enter the e-mail address whose domain is the name of your organization, if you have it. If it is convenient for you that we send e-mail messages to another account, please let us know.

Principal Investigator of the group:

Principal Investigator of the group must be a full-time faculty member / employee. Please notice that students are not qualified as a "Principal Investigator of the group". If you are students, the "principal investigator" should be your supervisor or advisor. A graduate student can be registered as a "Contact Person".

About Group ID:

Group ID is a name of participant group. Please read the following guideline when you decide your Group ID.

  • Group ID is independent of participating tasks. If the group members are identical, please use the same Group ID regardless of participating tasks.

  • If group members are different across participating tasks, please use different Group ID.

  • Group ID is granted on a first-come first-served basis. Therefore, NTCIR office will contact you to alter your Group ID when it's been taken by other groups.

If you have trouble with the online registration, please download the form, complete and return it via e-mail, fax, or postal mail to the NTCIR Project Office.


Changes after registration

If you have absolutely no choice but to cancel your participation in the task(s) due to unexpected reasons and can not submit the results, please report immediately to Program Co-chairs
at and the organizers of the task(s).

If you would like to participate additional task(s) after registration, please consult Program Co-chairs and the organizers of the task(s). For the change or addition of the subtask(s) in the task that you registered, please consult the task organizers.

If you need update the registration information or add members to your group, please contact the organizers of the task(s) and NTCIR Project Office.



  • Scientific and Technical Enquiries: NTCIR-18 Program Co-chairs:
    Qingyao Ai (Tsinghua University, China)
    Chung-Chi Chen (National Institute of Advanced Industrial Science and Technology (AIST), Japan)
    Shoko Wakamiya (Nara Institute of Science and Technology (NAIST), Japan)
  • For Registration: NTCIR Project Office
    National Institute of Informatics
    2-1-2 Hitotsubashi Chiyoda-ku,
    Tokyo 101-8430, JAPAN
    Phone: +81-3-4212-2750 | FAX: +81-3-4212-2751
  • For contact information of each task, please refer to this page: 'Task Overveiw'.

Last modified: 2024-05-01