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相关论文: Adversarial Training for Aspect-Based Sentiment An…

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Aspect-based sentiment analysis (ABSA), exploring sentiment polarity of aspect-given sentence, is a fine-grained task in the field of nature language processing. Previously researches typically tend to predict polarity based on the meaning…

计算与语言 · 计算机科学 2021-11-23 Zijian Zhang , Chenxin Zhang , Jiangfeng Li , Qinpei Zhao

We propose an agentic data augmentation method for Aspect-Based Sentiment Analysis (ABSA) that uses iterative generation and verification to produce high quality synthetic training examples. To isolate the effect of agentic structure, we…

计算与语言 · 计算机科学 2026-02-19 Mohammad H. A. Monfared , Lucie Flek , Akbar Karimi

A number of cross-lingual transfer learning approaches based on neural networks have been proposed for the case when large amounts of parallel text are at our disposal. However, in many real-world settings, the size of parallel annotated…

计算与语言 · 计算机科学 2020-01-31 Zuohui Fu , Yikun Xian , Shijie Geng , Yingqiang Ge , Yuting Wang , Xin Dong , Guang Wang , Gerard de Melo

Acronym identification focuses on finding the acronyms and the phrases that have been abbreviated, which is crucial for scientific document understanding tasks. However, the limited size of manually annotated datasets hinders further…

计算与语言 · 计算机科学 2021-01-13 Danqing Zhu , Wangli Lin , Yang Zhang , Qiwei Zhong , Guanxiong Zeng , Weilin Wu , Jiayu Tang

Disparate biases associated with datasets and trained classifiers in hateful and abusive content identification tasks have raised many concerns recently. Although the problem of biased datasets on abusive language detection has been…

社会与信息网络 · 计算机科学 2021-01-27 Marzieh Mozafari , Reza Farahbakhsh , Noel Crespi

Aspect-based Sentiment Analysis (ABSA) helps to explain customers' opinions towards products and services. In the past, ABSA models were discriminative, but more recently generative models have been used to generate aspects and polarities…

计算与语言 · 计算机科学 2023-07-13 Dhruv Mullick , Alona Fyshe , Bilal Ghanem

While neural networks have been shown to achieve impressive results for sentence-level sentiment analysis, targeted aspect-based sentiment analysis (TABSA) --- extraction of fine-grained opinion polarity w.r.t. a pre-defined set of aspects…

计算与语言 · 计算机科学 2018-05-01 Fei Liu , Trevor Cohn , Timothy Baldwin

In the domain of Aspect-Based Sentiment Analysis (ABSA), generative methods have shown promising results and achieved substantial advancements. However, despite these advancements, the tasks of extracting sentiment quadruplets, which…

计算与语言 · 计算机科学 2024-10-04 Yongsik Seo , Sungwon Song , Ryang Heo , Jieyong Kim , Dongha Lee

Aspect level sentiment classification aims to identify the sentiment expressed towards an aspect given a context sentence. Previous neural network based methods largely ignore the syntax structure in one sentence. In this paper, we propose…

计算与语言 · 计算机科学 2019-09-09 Binxuan Huang , Kathleen M. Carley

The aspect-based sentiment analysis (ABSA) is a fine-grained task that aims to determine the sentiment polarity towards targeted aspect terms occurring in the sentence. The development of the ABSA task is very much hindered by the lack of…

计算与语言 · 计算机科学 2022-03-15 Yiming Zhang , Min Zhang , Sai Wu , Junbo Zhao

Aspect-based sentiment analysis (ABSA) is a challenging task of extracting sentiments along with their corresponding aspects and opinion terms from the text. The inherent subjectivity of span annotation makes variability in the surface…

计算与语言 · 计算机科学 2025-02-13 Soyoung Yang , Hojun Cho , Jiyoung Lee , Sohee Yoon , Edward Choi , Jaegul Choo , Won Ik Cho

Target-based sentiment analysis or aspect-based sentiment analysis (ABSA) refers to addressing various sentiment analysis tasks at a fine-grained level, which includes but is not limited to aspect extraction, aspect sentiment…

计算与语言 · 计算机科学 2019-11-22 Haiyun Peng , Lu Xu , Lidong Bing , Fei Huang , Wei Lu , Luo Si

The success of pre-trained word embeddings has motivated its use in tasks in the biomedical domain. The BERT language model has shown remarkable results on standard performance metrics in tasks such as Named Entity Recognition (NER) and…

计算与语言 · 计算机科学 2020-04-24 Vladimir Araujo , Andres Carvallo , Carlos Aspillaga , Denis Parra

Neural language models show vulnerability to adversarial examples which are semantically similar to their original counterparts with a few words replaced by their synonyms. A common way to improve model robustness is adversarial training…

计算与语言 · 计算机科学 2022-03-25 Hanjie Chen , Yangfeng Ji

Adversarial training (AT) is among the most effective techniques to improve model robustness by augmenting training data with adversarial examples. However, most existing AT methods adopt a specific attack to craft adversarial examples,…

机器学习 · 计算机科学 2020-11-20 Yinpeng Dong , Zhijie Deng , Tianyu Pang , Hang Su , Jun Zhu

Aspect-based sentiment analysis aims to determine the sentiment polarity towards a specific aspect in online reviews. Most recent efforts adopt attention-based neural network models to implicitly connect aspects with opinion words. However,…

计算与语言 · 计算机科学 2020-04-28 Kai Wang , Weizhou Shen , Yunyi Yang , Xiaojun Quan , Rui Wang

Aspect-based sentiment analysis (ABSA) is a fine-grained task of sentiment analysis. To better comprehend long complicated sentences and obtain accurate aspect-specific information, linguistic and commonsense knowledge are generally…

计算与语言 · 计算机科学 2023-03-15 Qihuang Zhong , Liang Ding , Juhua Liu , Bo Du , Hua Jin , Dacheng Tao

Multimodal learning pipelines have benefited from the success of pretrained language models. However, this comes at the cost of increased model parameters. In this work, we propose Adapted Multimodal BERT (AMB), a BERT-based architecture…

计算与语言 · 计算机科学 2022-12-02 Odysseas S. Chlapanis , Georgios Paraskevopoulos , Alexandros Potamianos

Aspect level sentiment classification (ALSC) is a difficult problem with state-of-the-art models showing less than 80% macro-F1 score on benchmark datasets. Existing models do not incorporate information on aspect-aspect relations in…

计算与语言 · 计算机科学 2022-02-15 Sk Mainul Islam , Sourangshu Bhattacharya

Aspect-category sentiment analysis (ACSA) aims to predict the aspect categories mentioned in texts and their corresponding sentiment polarities. Some joint models have been proposed to address this task. Given a text, these joint models…

计算与语言 · 计算机科学 2021-10-22 Yuncong Li , Zhe Yang , Cunxiang Yin , Xu Pan , Lunan Cui , Qiang Huang , Ting Wei