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        <namePart type="given">Chuyuan</namePart>
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    <name type="personal">
        <namePart type="given">Chloe</namePart>
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    <abstract>Discourse processing suffers from data sparsity, especially for dialogues. As a result, we explore approaches to infer latent discourse structures for dialogues, based on attention matrices from Pre-trained Language Models (PLMs). We investigate multiple auxiliary tasks for fine-tuning and show that the dialogue-tailored Sentence Ordering task performs best. To locate and exploit discourse information in PLMs, we propose an unsupervised and a semi-supervised method. Our proposals thereby achieve encouraging results on the STAC corpus, with F1 scores of 57.2 and 59.3 for the unsupervised and semi-supervised methods, respectively. When restricted to projective trees, our scores improved to 63.3 and 68.1.</abstract>
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%0 Conference Proceedings
%T Discourse Structure Extraction from Pre-Trained and Fine-Tuned Language Models in Dialogues
%A Li, Chuyuan
%A Huber, Patrick
%A Xiao, Wen
%A Amblard, Maxime
%A Braud, Chloe
%A Carenini, Giuseppe
%Y Vlachos, Andreas
%Y Augenstein, Isabelle
%S Findings of the Association for Computational Linguistics: EACL 2023
%D 2023
%8 May
%I Association for Computational Linguistics
%C Dubrovnik, Croatia
%F li-etal-2023-discourse
%X Discourse processing suffers from data sparsity, especially for dialogues. As a result, we explore approaches to infer latent discourse structures for dialogues, based on attention matrices from Pre-trained Language Models (PLMs). We investigate multiple auxiliary tasks for fine-tuning and show that the dialogue-tailored Sentence Ordering task performs best. To locate and exploit discourse information in PLMs, we propose an unsupervised and a semi-supervised method. Our proposals thereby achieve encouraging results on the STAC corpus, with F1 scores of 57.2 and 59.3 for the unsupervised and semi-supervised methods, respectively. When restricted to projective trees, our scores improved to 63.3 and 68.1.
%R 10.18653/v1/2023.findings-eacl.194
%U https://aclanthology.org/2023.findings-eacl.194
%U https://doi.org/10.18653/v1/2023.findings-eacl.194
%P 2562-2579

Markdown (Informal)

[Discourse Structure Extraction from Pre-Trained and Fine-Tuned Language Models in Dialogues](https://aclanthology.org/2023.findings-eacl.194) (Li et al., Findings 2023)

• Discourse Structure Extraction from Pre-Trained and Fine-Tuned Language Models in Dialogues (Li et al., Findings 2023)

ACL

• Chuyuan Li, Patrick Huber, Wen Xiao, Maxime Amblard, Chloe Braud, and Giuseppe Carenini. 2023. Discourse Structure Extraction from Pre-Trained and Fine-Tuned Language Models in Dialogues. In Findings of the Association for Computational Linguistics: EACL 2023, pages 2562–2579, Dubrovnik, Croatia. Association for Computational Linguistics.