Knowledge‐enriched joint‐learning model for implicit emotion cause extraction

Abstract Emotion cause extraction (ECE) task that aims at extracting potential trigger events of certain emotions has attracted extensive attention recently. However, current work neglects the implicit emotion expressed without any explicit emotional keywords, which appears more frequently in applic...

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Main Authors: Chenghao Wu, Shumin Shi, Jiaxing Hu, Heyan Huang
Format: Article
Language:English
Published: Wiley 2023-03-01
Series:CAAI Transactions on Intelligence Technology
Subjects:
Online Access:https://doi.org/10.1049/cit2.12099
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author Chenghao Wu
Shumin Shi
Jiaxing Hu
Heyan Huang
author_facet Chenghao Wu
Shumin Shi
Jiaxing Hu
Heyan Huang
author_sort Chenghao Wu
collection DOAJ
description Abstract Emotion cause extraction (ECE) task that aims at extracting potential trigger events of certain emotions has attracted extensive attention recently. However, current work neglects the implicit emotion expressed without any explicit emotional keywords, which appears more frequently in application scenarios. The lack of explicit emotion information makes it extremely hard to extract emotion causes only with the local context. Moreover, an entire event is usually across multiple clauses, while existing work merely extracts cause events at clause level and cannot effectively capture complete cause event information. To address these issues, the events are first redefined at the tuple level and a span‐based tuple‐level algorithm is proposed to extract events from different clauses. Based on it, a corpus for implicit emotion cause extraction that tries to extract causes of implicit emotions is constructed. The authors propose a knowledge‐enriched joint‐learning model of implicit emotion recognition and implicit emotion cause extraction tasks (KJ‐IECE), which leverages commonsense knowledge from ConceptNet and NRC_VAD to better capture connections between emotion and corresponding cause events. Experiments on both implicit and explicit emotion cause extraction datasets demonstrate the effectiveness of the proposed model.
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spelling doaj.art-1a6e72af509a4f84ba92d8fa88e0ca002023-03-14T08:04:43ZengWileyCAAI Transactions on Intelligence Technology2468-23222023-03-018111812810.1049/cit2.12099Knowledge‐enriched joint‐learning model for implicit emotion cause extractionChenghao Wu0Shumin Shi1Jiaxing Hu2Heyan Huang3School of Computer Science and Technology Beijing Institute of Technology Beijing ChinaSchool of Computer Science and Technology Beijing Institute of Technology Beijing ChinaSchool of Computer Science and Technology Beijing Institute of Technology Beijing ChinaSchool of Computer Science and Technology Beijing Institute of Technology Beijing ChinaAbstract Emotion cause extraction (ECE) task that aims at extracting potential trigger events of certain emotions has attracted extensive attention recently. However, current work neglects the implicit emotion expressed without any explicit emotional keywords, which appears more frequently in application scenarios. The lack of explicit emotion information makes it extremely hard to extract emotion causes only with the local context. Moreover, an entire event is usually across multiple clauses, while existing work merely extracts cause events at clause level and cannot effectively capture complete cause event information. To address these issues, the events are first redefined at the tuple level and a span‐based tuple‐level algorithm is proposed to extract events from different clauses. Based on it, a corpus for implicit emotion cause extraction that tries to extract causes of implicit emotions is constructed. The authors propose a knowledge‐enriched joint‐learning model of implicit emotion recognition and implicit emotion cause extraction tasks (KJ‐IECE), which leverages commonsense knowledge from ConceptNet and NRC_VAD to better capture connections between emotion and corresponding cause events. Experiments on both implicit and explicit emotion cause extraction datasets demonstrate the effectiveness of the proposed model.https://doi.org/10.1049/cit2.12099emotion cause extractionexternal knowledge fusionimplicit emotion recognitionjoint learning
spellingShingle Chenghao Wu
Shumin Shi
Jiaxing Hu
Heyan Huang
Knowledge‐enriched joint‐learning model for implicit emotion cause extraction
CAAI Transactions on Intelligence Technology
emotion cause extraction
external knowledge fusion
implicit emotion recognition
joint learning
title Knowledge‐enriched joint‐learning model for implicit emotion cause extraction
title_full Knowledge‐enriched joint‐learning model for implicit emotion cause extraction
title_fullStr Knowledge‐enriched joint‐learning model for implicit emotion cause extraction
title_full_unstemmed Knowledge‐enriched joint‐learning model for implicit emotion cause extraction
title_short Knowledge‐enriched joint‐learning model for implicit emotion cause extraction
title_sort knowledge enriched joint learning model for implicit emotion cause extraction
topic emotion cause extraction
external knowledge fusion
implicit emotion recognition
joint learning
url https://doi.org/10.1049/cit2.12099
work_keys_str_mv AT chenghaowu knowledgeenrichedjointlearningmodelforimplicitemotioncauseextraction
AT shuminshi knowledgeenrichedjointlearningmodelforimplicitemotioncauseextraction
AT jiaxinghu knowledgeenrichedjointlearningmodelforimplicitemotioncauseextraction
AT heyanhuang knowledgeenrichedjointlearningmodelforimplicitemotioncauseextraction