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Linguistics Program

NACLO (North American Computational Linguistics Open competition) 2023 @USC


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. You can find out more about the competition here.


Who is it for?

High-school students with an interest in learning foreign languages, solving puzzles, breaking codes, natural language processing and language technologies.


How is the contest organized?

There are two rounds of the contest. The first (Open) round of the contest will take place on Thursday, January 26, 2023, from 10:00 am to 1:00 pm.  Students who perform well in the Open round will be invited to take part in the second (Invitational) round to be held on March 16, 2023, from 9:00 am to 1:00 pm. The top students in the invitational round from across North America will have a chance to participate in the International Linguistics Open competition in the summer.


How to register and what does it cost?

Participation in NACLO is free. Students who are interested in taking part will however need to register to participate in the competition at the NACLO registration site.


How to prepare?

There will be one training session at UofSC on Saturday, January 14 10am-1pm. The sessions will be held online via Zoom. The link for the online meetings will be made available to everyone who registers. Participation in these training sessions is free. If you plan to attend a training session, please register (the registration link is TBA). If you have any questions about the training sessions, or about the NACLO contest at UofSC, contact Prof. Mila Tasseva at


For more information

For more information, please consult the student handbook here.

Challenge the conventional. Create the exceptional. No Limits.