Approaching SMM4H with Merged Models and Multi-task Learning

Tilia Ellendorff, Lenz Furrer, Nicola Colic, Noëmi Aepli, Fabio Rinaldi

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Abstract
We describe our submissions to the 4th edition of the Social Media Mining for Health Applications (SMM4H) shared task. Our team (UZH) participated in two sub-tasks: Automatic classifications of adverse effects mentions in tweets (Task 1) and Generalizable identification of personal health experience mentions (Task 4). For our submissions, we exploited ensembles based on a pre-trained language representation with a neural transformer architecture (BERT) (Tasks 1 and 4) and a CNN-BiLSTM(-CRF) network within a multi-task learning scenario (Task 1). These systems are placed on top of a carefully crafted pipeline of domain-specific preprocessing steps.
Anthology ID:
W19-3208
Volume:
Proceedings of the Fourth Social Media Mining for Health Applications (#SMM4H) Workshop & Shared Task
Month:
August
Year:
2019
Address:
Florence, Italy
Editors:
Davy Weissenbacher, Graciela Gonzalez-Hernandez
Venue:
ACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
58–61
Language:
URL:
https://aclanthology.org/W19-3208
DOI:
10.18653/v1/W19-3208
Bibkey:
Cite (ACL):
Tilia Ellendorff, Lenz Furrer, Nicola Colic, Noëmi Aepli, and Fabio Rinaldi. 2019. Approaching SMM4H with Merged Models and Multi-task Learning. In Proceedings of the Fourth Social Media Mining for Health Applications (#SMM4H) Workshop & Shared Task, pages 58–61, Florence, Italy. Association for Computational Linguistics.
Cite (Informal):
Approaching SMM4H with Merged Models and Multi-task Learning (Ellendorff et al., ACL 2019)
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PDF:
https://preview.aclanthology.org/teach-a-man-to-fish/W19-3208.pdf