RALI-OLST-ILFC Weekly Talks
On Wednesdays at 11:30 a.m. (Montreal time), we hold a one-hour talk on a language processing or linguistics topic. It is typically offered in hybrid mode (in person/videoconference). Once a month, the talk is organized by the French research group Linguistique Informatique, Formelle et de Terrain.
A BERT-Based Approach for Multilingual Discourse Connective Detection
Thomas Chapados Muermans (thomas (point) chapadosmuermans <at> mail (point) concordia (point) ca)
Computer Science & Software Engineering, Concordia University
Wednesday 18 May 2022 at 11:30 AM
Réunion Zoom, below
In this paper, we report on our experiments towards multilingual discourse connective (or DC) identification and show how language specific BERT models seem to be sufficient even with little task-specific training data. While some languages have large corpora with human annotated DCs, most languages are low in such resources. Hence, relying solely on discourse annotated corpora to train a DC identification system for low resourced languages is insufficient. To address this issue, we developed a model based on pretrained BERT and fine-tuned it with discourse annotated data of varying sizes. To measure the effect of larger training data, we induced synthetic training corpora with DC annotations using word-aligned parallel corpora. We evaluated our models on 3 languages: English, Turkish and Mandarin Chinese in the context of the recent DISRPT 2021 Task 2 shared task. Results show that the F-measure achieved by the standard BERT model (2.49%, 93.97%, 87.42% for English, Turkish and Chinese) is hard to improve upon even with larger task specific training corpora.
Recording : https://drive.google.com/file/d/1Uh0SJ6Z6qOq3qdksg54qcCAjYnGs4It6/view?usp=sharing
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Meeting ID: 916 9097 5818, 𝑷𝒂𝒔𝒔𝒄𝒐𝒅𝒆: 343273.
Phone numbers: https://umontreal.zoom.us/u/abitNZzLg.
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http://rali.iro.umontreal.ca/rali/?q=fr/node/1631
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