Partially Supervised Named Entity Recognition via the Expected Entity Ratio Loss
AbstractWe study learning named entity recognizers in the presence of missing entity annotations. We approach this setting as tagging with latent variables and propose a novel loss, the Expected Entity Ratio, to learn models in the presence of systematically missing tags. We show tha...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
The MIT Press
2021-01-01
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Series: | Transactions of the Association for Computational Linguistics |
Online Access: | https://direct.mit.edu/tacl/article/doi/10.1162/tacl_a_00429/108606/Partially-Supervised-Named-Entity-Recognition-via |