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SpanMlt: A Span-based Multi-Task Learning Framework for Pair-wise Aspect and Opinion Terms Extraction

He Zhao, Longtao Huang, Rong Zhang, Quan Lu, hui xue
2020 Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics   unpublished
Aspect terms extraction and opinion terms extraction are two key problems of fine-grained  ...  We treat this task as a joint term and relation extraction problem and develop a span-based multi-task learning framework (SpanMlt).  ...  In this paper, we propose a span-based multi-task framework to jointly extract both the AT/OT and the pair-wise relations.  ... 
doi:10.18653/v1/2020.acl-main.296 fatcat:znzg373fpvbrnli5sdnkoqov4m


Ambreen Nazir, Yuan Rao
2022 Proceedings of the 45th International ACM SIGIR Conference on Research and Development in Information Retrieval  
Recently, the aspect-opinion term pairs (AOTP) extraction task has gained substantial importance in the domain of aspect-based sentiment analysis.  ...  It intends to extract the potential pair of each aspect term with its corresponding opinion term present in a user review.  ...  Guidance Funds for the Central Universities" (PY3A022), Ministry of Education Fund Projects (No. 18JZD022 and 2017B00030), Shenzhen Science and Technology Project (JCYJ20180306170836595), Basic Scientific  ... 
doi:10.1145/3477495.3532085 fatcat:ubc4bhjzjjbhroonqimged6v3i

Enhancement of Target-Oriented Opinion Words Extraction with Multiview-Trained Machine Reading Comprehension Model

Jingyuan Zhang, Zequn Zhang, Zhi Guo, Li Jin, Kang Liu, Qing Liu, Raşit Köker
2021 Computational Intelligence and Neuroscience  
Specifically, we introduce a template-based pseudo-question generation method and utilize deep attention interaction to build target-aware context representations and extract related opinion words.  ...  Target-oriented opinion words extraction (TOWE) seeks to identify opinion expressions oriented to a specific target, and it is a crucial step toward fine-grained opinion mining.  ...  that could selectively learn opinion information to enhance target representation. (4) SpanMlt-BERT [48] : a span-based joint approach that directly extracts target-opinion pairs based on pairwise span  ... 
doi:10.1155/2021/6645871 pmid:33859680 pmcid:PMC8024080 fatcat:sm7sigzftffqlg4vbul3luud34

Target-specified Sequence Labeling with Multi-head Self-attention for Target-oriented Opinion Words Extraction

Yuhao Feng, Yanghui Rao, Yuyao Tang, Ninghua Wang, He Liu
2021 Proceedings of the 2021 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies   unpublished
As a case study, we also develop a Multi-Task structure named MT-TSMSA for AOPE by combining our TSMSA with an aspect and opinion term extraction module.  ...  Opinion target extraction and opinion term extraction are two fundamental tasks in Aspect Based Sentiment Analysis (ABSA).  ...  Acknowledgment We are grateful to the reviewers for their constructive comments and suggestions on this study.  ... 
doi:10.18653/v1/2021.naacl-main.145 fatcat:ka4ymtrq5bbubmewl3uvtc7imi

Eliminating Sentiment Bias for Aspect-Level Sentiment Classification with Unsupervised Opinion Extraction

Bo Wang, Tao Shen, Guodong Long, Tianyi Zhou, Yi Chang
2021 Findings of the Association for Computational Linguistics: EMNLP 2021   unpublished
In this paper, we propose a span-based anti-bias aspect representation learning framework.  ...  ALSC is a practical setting in aspect-based sentiment analysis due to no opinion term labeling needed, but it fails to interpret why a sentiment polarity is derived for the aspect.  ...  To this end, we propose a Span-based Anti-bias aspect Representation Learning (SARL) framework for ALSC with unsupervised opinion extraction.  ... 
doi:10.18653/v1/2021.findings-emnlp.258 fatcat:m4f3s2i6zrdp7jo4i2wj55zhei

Aspect Sentiment Quad Prediction as Paraphrase Generation

Wenxuan Zhang, Yang Deng, Xin Li, Yifei Yuan, Lidong Bing, Wai Lam
2021 Proceedings of the 2021 Conference on Empirical Methods in Natural Language Processing   unpublished
Spanmlt: A span-based multi-task Wenya Wang, Sinno Jialin Pan, Daniel Dahlmeier, and learning framework for pair-wise aspect and opinion Xiaokui Xiao. 2017.  ...  An interactive multi-task learning and Houfeng Wang. 2019. Exploring sequence-to- network for end-to-end aspect-based sentiment anal- sequence learning in aspect term extraction.  ... 
doi:10.18653/v1/2021.emnlp-main.726 fatcat:x22fbjfr2nchnpbfklvh32rzki