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...

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Bibliographic Details
Main Authors: Thomas Effland, Michael Collins
Format: Article
Language:English
Published: The MIT Press 2021-01-01
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