Papers › A Multi-task Learning Framework for Opinion Triplet Extraction

A Multi-task Learning Framework for Opinion Triplet Extraction

4 Oct 2020Findings of the Association for Computational Linguistics 2020arXiv:2010.01512archive 2025-07-28

Chen Zhang, Qiuchi Li, Dawei Song, Benyou Wang

The state-of-the-art Aspect-based Sentiment Analysis (ABSA) approaches are mainly based on either detecting aspect terms and their corresponding sentiment polarities, or co-extracting aspect and opinion terms. However, the extraction of aspect-sentiment pairs lacks opinion terms as a reference, while co-extraction of aspect and opinion terms would not lead to meaningful pairs without determining their sentiment dependencies. To address the issue, we present a novel view of ABSA as an opinion triplet extraction task, and propose a multi-task learning framework to jointly extract aspect terms and opinion terms, and simultaneously parses sentiment dependencies between them with a biaffine scorer. At inference phase, the extraction of triplets is facilitated by a triplet decoding method based on the above outputs. We evaluate the proposed framework on four SemEval benchmarks for ASBA. The results demonstrate that our approach significantly outperforms a range of strong baselines and state-of-the-art approaches.

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GeneZC/OTE-MTL officialmentioned in papermentioned on GitHubpytorch report
QCOIN-LAB/OTE-MTL mentioned on GitHubpytorch report
l294265421/OTE-MTL-ASOTE mentioned on GitHubpytorch report

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Aspect Sentiment Triplet ExtractionAspect-Based Sentiment AnalysisAspect-Based Sentiment Analysis (ABSA)Extract AspectMulti-Task LearningSentiment Analysis

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