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        <title>DCU-Lorcan at FinCausal 2022: Span-based Causality Extraction from Financial Documents using Pre-trained Language Models</title>
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    <name type="personal">
        <namePart type="given">Chenyang</namePart>
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    <name type="personal">
        <namePart type="given">Tianbo</namePart>
        <namePart type="family">Ji</namePart>
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    <name type="personal">
        <namePart type="given">Quanwei</namePart>
        <namePart type="family">Sun</namePart>
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    <name type="personal">
        <namePart type="given">Liting</namePart>
        <namePart type="family">Zhou</namePart>
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        <dateIssued>2022-06</dateIssued>
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            <title>Proceedings of the 4th Financial Narrative Processing Workshop @LREC2022</title>
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            <namePart type="given">Mahmoud</namePart>
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    <abstract>In this paper, we describe our DCU-Lorcan system for the FinCausal 2022 shared task: span-based cause and effect extraction from financial documents. We frame the FinCausal 2022 causality extraction task as a span extraction/sequence labeling task, our submitted systems are based on the contextualized word representations produced by pre-trained language models and linear layers predicting the label for each word, followed by post-processing heuristics. In experiments, we employ pre-trained language models including DistilBERT, BERT and SpanBERT. Our best performed system achieves F-1, Recall, Precision and Exact Match scores of 92.76, 92.77, 92.76 and 68.60 respectively. Additionally, we conduct experiments investigating the effect of data size to the performance of causality extraction model and an error analysis investigating the outputs in predictions.</abstract>
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        <url>https://aclanthology.org/2022.fnp-1.19</url>
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        <date>2022-06</date>
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            <start>116</start>
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%0 Conference Proceedings
%T DCU-Lorcan at FinCausal 2022: Span-based Causality Extraction from Financial Documents using Pre-trained Language Models
%A Lyu, Chenyang
%A Ji, Tianbo
%A Sun, Quanwei
%A Zhou, Liting
%Y El-Haj, Mahmoud
%Y Rayson, Paul
%Y Zmandar, Nadhem
%S Proceedings of the 4th Financial Narrative Processing Workshop @LREC2022
%D 2022
%8 June
%I European Language Resources Association
%C Marseille, France
%F lyu-etal-2022-dcu
%X In this paper, we describe our DCU-Lorcan system for the FinCausal 2022 shared task: span-based cause and effect extraction from financial documents. We frame the FinCausal 2022 causality extraction task as a span extraction/sequence labeling task, our submitted systems are based on the contextualized word representations produced by pre-trained language models and linear layers predicting the label for each word, followed by post-processing heuristics. In experiments, we employ pre-trained language models including DistilBERT, BERT and SpanBERT. Our best performed system achieves F-1, Recall, Precision and Exact Match scores of 92.76, 92.77, 92.76 and 68.60 respectively. Additionally, we conduct experiments investigating the effect of data size to the performance of causality extraction model and an error analysis investigating the outputs in predictions.
%U https://aclanthology.org/2022.fnp-1.19
%P 116-120

Markdown (Informal)

[DCU-Lorcan at FinCausal 2022: Span-based Causality Extraction from Financial Documents using Pre-trained Language Models](https://aclanthology.org/2022.fnp-1.19) (Lyu et al., FNP 2022)

• DCU-Lorcan at FinCausal 2022: Span-based Causality Extraction from Financial Documents using Pre-trained Language Models (Lyu et al., FNP 2022)

ACL

• Chenyang Lyu, Tianbo Ji, Quanwei Sun, and Liting Zhou. 2022. DCU-Lorcan at FinCausal 2022: Span-based Causality Extraction from Financial Documents using Pre-trained Language Models. In Proceedings of the 4th Financial Narrative Processing Workshop @LREC2022, pages 116–120, Marseille, France. European Language Resources Association.