Named-Entity Recognition for Norwegian

Bjarte Johansen


Abstract
NER is the task of recognizing and demarcating the segments of a document that are part of a name and which type of name it is. We use 4 different categories of names: Locations (LOC), miscellaneous (MISC), organizations (ORG), and persons (PER). Even though we employ state of the art methods—including sub-word embeddings—that work well for English, we are unable to reproduce the same success for the Norwegian written forms. However, our model performs better than any previous research on Norwegian text. The study also presents the first NER for Nynorsk. Lastly, we find that by combining Nynorsk and Bokmål into one training corpus we improve the performance of our model on both languages.
Anthology ID:
W19-6123
Volume:
Proceedings of the 22nd Nordic Conference on Computational Linguistics
Month:
September–October
Year:
2019
Address:
Turku, Finland
Editors:
Mareike Hartmann, Barbara Plank
Venue:
NoDaLiDa
SIG:
Publisher:
Linköping University Electronic Press
Note:
Pages:
222–231
Language:
URL:
https://aclanthology.org/W19-6123
DOI:
Bibkey:
Cite (ACL):
Bjarte Johansen. 2019. Named-Entity Recognition for Norwegian. In Proceedings of the 22nd Nordic Conference on Computational Linguistics, pages 222–231, Turku, Finland. Linköping University Electronic Press.
Cite (Informal):
Named-Entity Recognition for Norwegian (Johansen, NoDaLiDa 2019)
Copy Citation:
PDF:
https://aclanthology.org/W19-6123.pdf
Code
 ljos/navnkjenner