Publication detail

IDIAPers @ Causal News Corpus 2022: Efficient Causal Relation Identification Through a Prompt-based Few-shot Approach

BURDISSO, S. FAJČÍK, M. SMRŽ, P. MOTLÍČEK, P.

Original Title

IDIAPers @ Causal News Corpus 2022: Efficient Causal Relation Identification Through a Prompt-based Few-shot Approach

Type

conference paper

Language

English

Original Abstract

In this paper, we describe our participation in the subtask 1 of CASE-2022, Event Causality Identification with Casual News Corpus. We address the Causal Relation Identification (CRI) task by exploiting a set of simple yet complementary techniques for fine-tuning language models (LMs) on a small number of annotated examples (i.e., a few-shot configuration). We follow a prompt-based prediction approach for fine-tuning LMs in which the CRI task is treated as a masked language modeling problem (MLM). This approach allows LMs natively pre-trained on MLM problems to directly generate textual responses to CRI-specific prompts. We compare the performance of this method against ensemble techniques trained on the entire dataset. Our best-performing submission was fine-tuned with only 256 instances per class, 15.7% of the all available data, and yet obtained the second-best precision (0.82), third-best accuracy (0.82), and an F1-score (0.85) very close to what was reported by the winner team (0.86).

Keywords

few-shot learning, classifier, causal relation identification, causal event identification, ensembling

Authors

BURDISSO, S.; FAJČÍK, M.; SMRŽ, P.; MOTLÍČEK, P.

Released

12. 12. 2022

Publisher

Association for Computational Linguistics

Location

Abu Dhabi

ISBN

978-1-959429-05-0

Book

Proceedings of the 5th Workshop on Challenges and Applications of Automated Extraction of Socio-political Events from Text (CASE 2022)

Pages from

61

Pages to

69

Pages count

9

URL

https://aclanthology.org/2022.case-1.9/

BibTex

@inproceedings{BUT185127,
  author="Sergio {Burdisso} and Martin {Fajčík} and Pavel {Smrž} and Petr {Motlíček}",
  title="IDIAPers @ Causal News Corpus 2022: Efficient Causal Relation Identification Through a Prompt-based Few-shot Approach",
  booktitle="Proceedings of the 5th Workshop on Challenges and Applications of Automated Extraction of Socio-political Events from Text (CASE 2022)",
  year="2022",
  pages="61--69",
  publisher="Association for Computational Linguistics",
  address="Abu Dhabi",
  doi="10.18653/v1/2022.case-1.9",
  isbn="978-1-959429-05-0",
  url="https://aclanthology.org/2022.case-1.9/"
}