NLPeople at SemEval-2023 Task 2: A Staged Approach for Multilingual Named Entity Recognition
Mohab Elkaref, Nathan Herr, Shinnosuke Tanaka, Geeth R. de Mel · 2023
The MultiCoNER II shared task aims at detecting complex, ambiguous named entities with fine-grained types in a low context setting.Previous winning systems incorporated external knowledge bases to retrieve helpful contexts.In our submission we additionally propose splitting the NER task into two stages, a Span Extraction Step, and an Entity Classification step.Our results show that the former does not suffer from the low context setting comparably, and in so leading to a higher overall performance for an external KB-assisted system.We achieve 3 rd place on the multilingual track and an average of 6 th place overall.