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In aspect-level sentiment classification (ASC), it is prevalent to equip dominant neural models with attention mechanisms, for the sake of acquiring the importance of each context word on the given aspect. However, such a mechanism tends to…

计算与语言 · 计算机科学 2019-06-07 Jialong Tang , Ziyao Lu , Jinsong Su , Yubin Ge , Linfeng Song , Le Sun , Jiebo Luo

Aspect-based sentiment analysis (ABSA) aims to predict the sentiment expressed in a review with respect to a given aspect. The core of ABSA is to model the interaction between the context and given aspect to extract the aspect-related…

计算与语言 · 计算机科学 2022-04-22 Bowen Xing , Ivor W. Tsang

(T)ACSA tasks, including aspect-category sentiment analysis (ACSA) and targeted aspect-category sentiment analysis (TACSA), aims at identifying sentiment polarity on predefined categories. Incremental learning on new categories is necessary…

计算与语言 · 计算机科学 2020-10-07 Zehui Dai , Cheng Peng , Huajie Chen , Yadong Ding

Aspect based sentiment analysis (ABSA) deals with the identification of the sentiment polarity of a review sentence towards a given aspect. Deep Learning sequential models like RNN, LSTM, and GRU are current state-of-the-art methods for…

计算与语言 · 计算机科学 2022-08-05 Ashish Kumar , Vasundhra Dahiya , Aditi Sharan

As an extensive research in the field of natural language processing (NLP), aspect-based sentiment analysis (ABSA) is the task of predicting the sentiment expressed in a text relative to the corresponding aspect. Unfortunately, most…

计算与语言 · 计算机科学 2023-01-10 Nankai Lin , Yingwen Fu , Xiaotian Lin , Aimin Yang , Shengyi Jiang

In natural language the intended meaning of a word or phrase is often implicit and depends on the context. In this work, we propose a simple yet effective method for sentiment analysis using contextual embeddings and a self-attention…

计算与语言 · 计算机科学 2020-10-07 Katarzyna Biesialska , Magdalena Biesialska , Henryk Rybinski

Aspect-based sentiment analysis (ABSA) tries to predict the polarity of a given document with respect to a given aspect entity. While neural network architectures have been successful in predicting the overall polarity of sentences,…

计算与语言 · 计算机科学 2017-12-18 Yi Tay , Anh Tuan Luu , Siu Cheung Hui

In the context of sentiment analysis, there has been growing interest in performing a finer granularity analysis focusing on the specific aspects of the entities being evaluated. This is the goal of Aspect-Based Sentiment Analysis (ABSA)…

计算与语言 · 计算机科学 2020-08-26 Danny Suarez Vargas , Lucas R. C. Pessutto , Viviane Pereira Moreira

Though notable progress has been made, neural-based aspect-based sentiment analysis (ABSA) models are prone to learn spurious correlations from annotation biases, resulting in poor robustness on adversarial data transformations. Among the…

计算与语言 · 计算机科学 2024-06-07 Jialong Wu , Linhai Zhang , Deyu Zhou , Guoqiang Xu

Joint extraction of aspects and sentiments can be effectively formulated as a sequence labeling problem. However, such formulation hinders the effectiveness of supervised methods due to the lack of annotated sequence data in many domains.…

计算与语言 · 计算机科学 2019-11-01 Zheng Li , Xin Li , Ying Wei , Lidong Bing , Yu Zhang , Qiang Yang

Aspect-based sentiment analysis (ABSA) aims at automatically inferring the specific sentiment polarities toward certain aspects of products or services behind the social media texts or reviews, which has been a fundamental application to…

计算与语言 · 计算机科学 2023-05-22 Hao Fei , Tat-Seng Chua , Chenliang Li , Donghong Ji , Meishan Zhang , Yafeng Ren

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

Aspect-level sentiment classification aims at identifying the sentiment polarity of specific target in its context. Previous approaches have realized the importance of targets in sentiment classification and developed various methods with…

人工智能 · 计算机科学 2017-09-05 Dehong Ma , Sujian Li , Xiaodong Zhang , Houfeng Wang

Aspect-based sentiment analysis (ABSA) aims to predict fine-grained sentiments of comments with respect to given aspect terms or categories. In previous ABSA methods, the importance of aspect has been realized and verified. Most existing…

计算与语言 · 计算机科学 2019-07-09 Bowen Xing , Lejian Liao , Dandan Song , Jingang Wang , Fuzheng Zhang , Zhongyuan Wang , Heyan Huang

Aspect-based sentiment classification (ASC) aims to judge the sentiment polarity conveyed by the given aspect term in a sentence. The sentiment polarity is not only determined by the local context but also related to the words far away from…

计算与语言 · 计算机科学 2025-02-11 Hao Niu , Yun Xiong , Xiaosu Wang , Philip S. Yu

Aspect-based sentiment analysis (ABSA) is to predict the sentiment polarity towards a particular aspect in a sentence. Recently, this task has been widely addressed by the neural attention mechanism, which computes attention weights to…

计算与语言 · 计算机科学 2019-09-26 Mengting Hu , Shiwan Zhao , Honglei Guo , Renhong Cheng , Zhong Su

Multimodal aspect-based sentiment analysis (MABSA) aims to understand opinions in a granular manner, advancing human-computer interaction and other fields. Traditionally, MABSA methods use a joint prediction approach to identify aspects and…

计算与语言 · 计算机科学 2024-06-14 Shezheng Song , Shasha Li , Shan Zhao , Chengyu Wang , Xiaopeng Li , Jie Yu , Qian Wan , Jun Ma , Tianwei Yan , Wentao Ma , Xiaoguang Mao

Targeted sentiment classification predicts the sentiment polarity on given target mentions in input texts. Dominant methods employ neural networks for encoding the input sentence and extracting relations between target mentions and their…

计算与语言 · 计算机科学 2020-12-18 Xuefeng Bai , Pengbo Liu , Yue Zhang

Target-Based Sentiment Analysis aims to detect the opinion aspects (aspect extraction) and the sentiment polarities (sentiment detection) towards them. Both the previous pipeline and integrated methods fail to precisely model the innate…

计算与语言 · 计算机科学 2020-04-15 Shu Liu , Wei Li , Yunfang Wu , Qi Su , Xu Sun

Aspect-based sentiment analysis (ABSA) aims at analyzing the sentiment of a given aspect in a sentence. Recently, neural network-based methods have achieved promising results in existing ABSA datasets. However, these datasets tend to…

计算与语言 · 计算机科学 2020-11-03 Zhen Wu , Chengcan Ying , Xinyu Dai , Shujian Huang , Jiajun Chen