Second Call for Participation: SemEval-2022 Task 11: Multilingual Complex Named Entity Recognition

Event Notification Type: 
Call for Participation
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Contact: 
Sudipta Kar
Submission Deadline: 
Monday, 10 January 2022

We cordially invite you to participate in the SemEval-2022 Task 11: Multilingual Complex Named Entity Recognition (MultiCoNER).

The task is being held as part of SemEval-2022, and all participating team will be able to publish their system description paper in the proceedings published by ACL.

This task focuses on the detection of complex entities, such as e-commerce products (movies, books, music and product titles), in low context settings (short and uncased text).

The task covers 3 domains (sentences, search queries, and questions) and provides data in 11 languages: English, Spanish, Dutch, Russian, Turkish, Korean, Farsi, German, Chinese, Hindi, and Bangla. Here are some examples in English, Chinese, Bangla, Hindi, Russian, Korean, and Farsi, where entities are enclosed inside brackets with their type:

  • the original [ferrari daytona | PRODUCT] replica driven by [don johnson | PERSON] in [miami vice | CreativeWork]
  • 它 的 座 位 在 [圣 布 里 厄 | LOCATION] .
  • স্টেশনটির মালিক [টাউনস্কেয়ার মিডিয়া | CORPORATION] ।
  • यह [कनेल विभाग | LOCATION] की राजधानी है।
  • в основе фильма — стихотворение [г. сапгира | PERSON] .
  • [블루레이 디스크 | PRODUCT] : 광 기록 방식 저장매체의 하나
  • [نینتندو- | CORPORATION] / [باندای نامکو انترتینمنت | CORPORATION] – [برادران سوپر ماریو نهایی | CreativeWork].

Additionally, a multilingual NER track is also offered for multilingual systems that can process all languages. A code-mixed track allows participants to build systems that process inputs with tokens coming from two languages. For example, the following are some code-mixed examples from Turkish, Spanish, Dutch, German, and English.

  • it was produced at the [soyuzmultfilm | GROUP] studio in [moskova | LOCATION] .
  • [arturo vidal | PERSON] ( born 1987 ) , professional footballer playing for [fútbol club barcelona | GROUP]
  • daarmee promoveerde hij toen naar de [premier league | CORPORATION] .
  • piracy has been a part of the [sultanat von sulu | LOCATION] culture .

The task focuses on detecting semantically ambiguous and complex entities in short and low-context settings. Participants are welcome to build NER systems for any number of languages. And we encourage to aim for a bigger challenge of building NER systems for multiple languages. The task also aims at testing the domain adaption capability of the systems by testing on additional test sets on questions and short search queries.

We have released training data for 11 languages along with a baseline system to start with. Participants can submit their system for one language but are encouraged to aim for a bigger challenge and build multi-lingual NER systems.

Important Links

Shared task schedule

  • Training data ready: September 3, 2021
  • Evaluation data ready: December 3, 2021
  • Evaluation start: January 10, 2022
  • Evaluation end: by January 31, 2022 (latest date; task organizers may choose an earlier date)
  • System description paper submissions due: February 23, 2022
  • Notification to authors: March 31, 2022

Task organizers

  • Shervin Malmasi (Amazon)
  • Besnik Fetahu (Amazon)
  • Anjie Fang (Amazon)
  • Sudipta Kar (Amazon)
  • Oleg Rokhlenko (Amazon)

Please reach out to the organizers at multiconer-semeval-organizers [at] googlegroups.com, or join the Slack workspace to connect with the other participants and organizers.