What is NACLO?
NACLO is a contest in which high-school students solve linguistic
problems. In solving these problems, students learn about the
diversity and consistency of language, while exercising logic skills.
No prior knowledge of linguistics or second languages is necessary.
Professionals in linguistics, computational linguistics and language
technologies use dozens of languages to create engaging problems that
represent cutting edge issues in their fields. The competition has
attracted top students to study and work in those same fields. It is
truly an opportunity for young people to experience a taste of
natural-language processing in the 21st century.
Announcements
- February 27, 2021Grading for the 2021 Open Round has concluded and your score is
available in your student account. The list of students who have qualified for the Invitational Round has been
released. You can access it here.
- February 26, 2021The scores from the Open Round will be posted tomorrow, Saturday,
February 27.
- February 1, 2021The NACLO 2021 Open Round took place on January 28, 2021. Results
and invitations to the Invitational Round will be announced on or around February 28. If you missed this year's contest,
registration for next year's contest will open in September 2021.
- January 15, 2021The new registration deadline is Friday, January 22.
- January 8, 2021
All participants enrolled to participate in the NACLO Open Round on
January 28, 2021, from home (At-Home Site) should have received an
email directly from NACLO with the subject line “NACLO 2021 At-Home
Participants / Important Instructions.” Any At-Home participant who
has not received this email should immediately contact
naclo21org@umich.edu. All At-Home participants should check the email
they used to register for the competition regularly for further
instructions.
- December 17, 2020
This year's student registration deadline for the At-Home option is
January 15, 2021, and must be strictly enforced to give NACLO the
required time to ensure all At-Home participants are individually set
up for the January 28 Open Round.
- December 17, 2020The NACLO YouTube Channel is live now.
We will be
uploading new videos hosted by past team participants during which
they walk us through their process for solving a NACLO or IOL problem.
- October 1, 2020The NACLO 2020 Press Release.
- September 20, 2020The handbook for 2021 is now available.
- September 20, 2020Registration for the 2021 Open Contest started on
September 15, 2020.
- September 2, 2020Students who cannot participate at a high school or university
site due to
COVID-19 restrictions have the one-time option of participating in the open
round of NACLO 2021 from home by registering for the AT-HOME site, one of
the options available in the University Sites category. Participants
registering for this site must have internet access for the duration of the
competition in order to receive the puzzles directly from the NACLO
organizing committee and print them at home, communicate with the jury if
needed, and enter their puzzle answers online using Google Forms.
- August 23, 2020The NACLO organizing committee is mindful of the health and safety
of its
participants and its site hosts. In light of the COVID-19 pandemic,
participants and hosts are encouraged to follow the direction of state, provincial, and
local officials to determine the safest option for hosting the NACLO 2021
Open Round on January 28, 2021, as well as the Invitational Round on
March 11, 2021. As health-related restrictions remain fluid across
different parts of the U.S. and Canada, we encourage students to register
as in the past keeping in mind that the contingency plan is for students to
participate from home if they find themselves unable to participate at a
University or High School site due to restrictions related to COVID-19.
Please note that this at-home participation option will require internet
access for the duration of the competition.
- June 14, 2020All Open Round problems (+solutions) have
been posted online under STUDENTS/PRACTICE PROBLEMS tab.
- March 30, 2020See the results of the Invitational Round. If your score is missing or if you notice any other problem, please contact naclo21org@umich.edu asap. Please note that announcement of team qualifiers and
alternates will be intentionally delayed. Further information about teams will be released in the next several days, pending further guidance from the IOL.
- March 10, 2020The list of submitted booklets for
the Invitational Round is now
available. If you don't see your number here, please contact naclo21org@umich.edu asap
- February 15, 2020Grading is over (with a few exceptions). See the results. If your score is missing or if you notice any other problem, please contact naclo21org@umich.edu asap.
- February 10, 2020The list of submitted booklets for the
Open Round is now
available. If you don't see your number here, please contact naclo21org@umich.edu asap
- January 23, 2019On-site registration is open now for the sites that allow
walk-ins. The registration site will be closed for good after the end of the contest later today
- January 22, 2019Regular registration ends today (January 22) at 3 PM EST (12 noon
PST). It will reopen for walk-in registration tomorrow (January 23) morning and close again for good after the end of
the contest. If you are a student, you can check if your site allows walk-ins. All participants have to register in
order to compete.
- December 1, 2019Announcement about the new name of this competition.
- September 7, 2019Registration for 2020 has started.
Student registrations are not carried over from one year to the next. If you are a student and had
registered prior to September 15, you will need to register again from scratch. Site registrations (high school and
university sites) are automatically copied from one year to the next.
- August 12, 2019 The dates for the 2020 contest are January 23 (open round) and March 5, 2020 (invitational round).
- The NACLO 2020 Student
Handbook
- The NACLO 2020
Coordinator Handbook
- The NACLO 2020
Appendix
Please Donate
You can help support NACLO either by mailing a check or giving online. For more information on both, please see our donations page. We thank you for your support!
Contact
We're looking for new sites and problem contributors. Please contact us at naclo21org@umich.edu.
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Quick Links
Student Registration
Register for the next competition
Practice Problems
Challenge yourself online with practice problems
Handbook
All you need to know about NACLO in one place
NACLO Resources
Suggested reading, links, etc.
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