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A PubMedBERT-based Classifier with Data Augmentation Strategy for Detecting Medication Mentions in Tweets

2021-11-03 14:29:24
Qing Han, Shubo Tian, Jinfeng Zhang
arXiv_CL
         
Abstract

As a major social media platform, Twitter publishes a large number of user-generated text (tweets) on a daily basis. Mining such data can be used to address important social, public health, and emergency management issues that are infeasible through other means. An essential step in many text mining pipelines is named entity recognition (NER), which presents some special challenges for tweet data. Among them are nonstandard expressions, extreme imbalanced classes, and lack of context information, etc. The track 3 of BioCreative challenge VII (BC7) was organized to evaluate methods for detecting medication mentions in tweets. In this paper, we report our work on BC7 track 3, where we explored a PubMedBERT-based classifier trained with a combination of multiple data augmentation approaches. Our method achieved an F1 score of 0.762, which is substantially higher than the mean of all submissions (0.696).

Abstract (translated)

URL

https://arxiv.org/abs/2112.02998

PDF

https://arxiv.org/pdf/2112.02998.pdf

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