- North American Computational Linguistics Olympiad
The North American Computational Linguistics Olympiad (NACLO) is a linguistics competition for high school students in the United States and Canada that has been held since 2007. Around 1000 students participate annually.  Since 2008 the contest has consisted of two rounds, the second being administered to the top scorers in the first round. The top-scoring students on the second round qualify for the International Linguistics Olympiad (ILO), one of the international science olympiads.
Since the mid-1960s, problem-solving competitions in linguistics for secondary school students have been taking place at various locations around the world. In Russia, the Moscow and St Petersburg Linguistic Olympiads are credited with inspiring hundreds of young talented scholars to choose linguistics as an academic major and profession. Presently (2009) there are national contests in Bulgaria, the Netherlands and several other European countries, and the USA. There is also an International Linguistic Olympiad in which students from many countries compete, as well as dozens of local competitions held in individual towns and schools across Europe and the USA.
In 1998 the first US Linguistics Olympiad was held at the University of Oregon in Eugene, Oregon, in 1998. 18 students participated the first year, 88 participated the second year, and 67 participated the third year of this local pilot program. From 2001 to 2006, the program existed as an informal, web-based educational activity known as the Linguistics Challenge.
The two US teams in each year won several awards at the ILO in 2007 and 2008. Each year, one of the two US teams won a gold medal (or first diploma) in the team contest. In addition, several team members won individual medals.
The format of the contest changed significantly between 2007 and 2008. The 2007 contest consisted of eight problems given in a single round open to all partipants. The 2008 competition consisted of two rounds. The first round was open to all contestants and consisted of a three-hour, five-problem written examination. The top scorers on the open round advanced to the invitational round, which was a five-hour, seven-problem written examination divided into two parts; the first part lasted 3 and a half hours and contained five problems, while the second part lasted one and a half hour and contained two problems. The top eight scorers from the invitational round were selected to participate in the ILO. The booklets with problems and solutions are available on the main NACLO website.
From 2007 to 2010 the USA sent two teams annually to the ILO.
2007 - St. Petersburg, Russia Team Name Award Team award 1 Adam Hesterberg gold medal Jeffrey Lim best solution to problem 2 Ryan Musa Rachel Zax 2 Josh Falk gold medal Rebecca Jacobs Michael Gottlieb Anna Tchetchetkine 2008 - Slantchev Bryag, Bulgaria Team Name Award Team award 1 Josh Falk silver trophy,
cup for highest average score
on the individual contest
Jeffrey Lim bronze medal Anand Natarajan silver medal Guy Tabachnick bronze medal 2 Morris Alper silver medal gold trophy Rebecca Jacobs bronze medal Jae-kyu Lee best solution to problem 4 Hanzhi Zhu gold medal,
best solution to problem 1
2009 - Wrocław, Poland Team Name Award Team award "Red" Morris Alper honorable mention gold trophy Alan Huang bronze medal,
best solution to problem 1
Rebecca Jacobs silver medal Anand Natarajan honorable mention "Blue" John Berman bronze medal,
best solution to problem 5
Sergei Bernstein bronze medal Daryl Hansen honorable mention Vivaek Shivakumar honorable mention 2010 - Stockholm, Sweden Team Name Award Team award "Red" Ben Sklaroff gold medal,
best solution to problem 4
3rd highest combined individual scores Allen Yuan silver medal In-Sung Na honorable mention Brian Kong honorable mention "Blue" Martin Camacho silver medal,
best solution to problem 2
highest combined individual scores Tian-Yi Damien Jiang silver medal,
best solution to problem 1
Alexander Iriza bronze medal Alan Chang bronze medal
In 2011 the USA sent three teams, and Canada also sent a team.
2011 - Pittsburgh, USA Country Team Name Team leader USA "Red" Aaron Klein Dragomir Radev Wesley Jones Duligur Ibeling Morris Alper "White" Erik Andersen Allen Yuan Chelsea Voss Arjun Srinivasan "Blue" Alexander Wade Ophir Lifshitz Caroline Ellison Rachel McEnroe Canada Keunjae Go Patrick Littell Jordan Ho Daniel Mitropolsky William Zhang
- ^ "NACLO 2010 Press Release". May 2010. http://www.naclo.cs.cmu.edu/press-release2010.html. Retrieved 18 November 2008.
- ^ "The Fifth International Linguistics Olympiad: Results". August 2007. http://ilolympiad.spb.ru/results.html. Retrieved 18 November 2008.
- ^ "6th International Olympiad in Linguistics". August 2008. http://iol6.linguistics-bg.com/results.php. Retrieved 18 November 2008.
- ^ "NACLO Rules (2008)". Carnegie Mellon University. http://www.cs.cmu.edu/~eugene/Naclo/rules.html. Retrieved 18 November 2008.
- ^ "NACLO 2009—Practice Problems". Carnegie Mellon University. October 2009. http://www.naclo.cs.cmu.edu/practice.php. Retrieved 18 November 2008. [dead link]
- ^ ILO 2007 Participants
- ^ ILO 2007 Results
- ^ ILO 2008 Participants
- ^ ILO 2008 Results
- ^ ILO 2009 Participants
- ^ ILO 2009 Results
- ^ Press Release 2010
- ^ ILO 2010 Participants
- ^ ILO 2010 Results
- ^ Press Release 2011
- "NACLO 2009". Carnegie Mellon University. http://www.naclo.cs.cmu.edu. Retrieved 16 November 2008.
- "Team USA Brings Home the (Linguistics) Gold". National Science Foundation Office of International Science and Engineering News. National Science Foundation. August 15, 2008. http://www.nsf.gov/news/news_summ.jsp?org=OISE&cntn_id=112073&preview=false. Retrieved 16 November 2008.
- "Team USA Takes the Prize at the International Linguistics Olympiad in St. Petersburg, Russia". National Science Foundation Office of International Science and Engineering News. National Science Foundation. August 17, 2007. http://www.nsf.gov/news/news_summ.jsp?org=OISE&cntn_id=109891&preview=false. Retrieved 16 November 2008.
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