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Attention-based long short-term memory (LSTM) networks have proven to be useful in aspect-level sentiment classification. However, due to the difficulties in annotating aspect-level data, existing public datasets for this task are all…

计算与语言 · 计算机科学 2018-06-13 Ruidan He , Wee Sun Lee , Hwee Tou Ng , Daniel Dahlmeier

Fine-grained sentiment analysis faces ongoing challenges in Aspect Sentiment Triple Extraction (ASTE), particularly in accurately capturing the relationships between aspects, opinions, and sentiment polarities. While researchers have made…

计算与语言 · 计算机科学 2025-11-14 Vishal Thenuwara , Nisansa de Silva

In aspect-based sentiment analysis (ABSA), many neural models are equipped with an attention mechanism to quantify the contribution of each context word to sentiment prediction. However, such a mechanism suffers from one drawback: only a…

计算与语言 · 计算机科学 2021-03-08 Jinsong Su , Jialong Tang , Hui Jiang , Ziyao Lu , Yubin Ge , Linfeng Song , Deyi Xiong , Le Sun , Jiebo Luo

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

Neural network has become the dominant method for Chinese word segmentation. Most existing models cast the task as sequence labeling, using BiLSTM-CRF for representing the input and making output predictions. Recently, attention-based…

计算与语言 · 计算机科学 2019-07-29 Leilei Gan , Yue Zhang

Aspect level sentiment classification is a fine-grained sentiment analysis task. To detect the sentiment towards a particular aspect in a sentence, previous studies have developed various attention-based methods for generating…

计算与语言 · 计算机科学 2019-08-22 Mengting Hu , Shiwan Zhao , Li Zhang , Keke Cai , Zhong Su , Renhong Cheng , Xiaowei Shen

This work proposes an LSTM-based sentiment classification model with multi-head attention mechanism and TF-IDF optimization. Through the integration of TF-IDF feature extraction and multi-head attention, the model significantly improves…

计算与语言 · 计算机科学 2025-03-12 Jingyuan Yi , Peiyang Yu , Tianyi Huang , Xiaochuan Xu

Aspect-based sentiment analysis (ABSA) task is a multi-grained task of natural language processing and consists of two subtasks: aspect term extraction (ATE) and aspect polarity classification (APC). Most of the existing work focuses on the…

计算与语言 · 计算机科学 2020-02-13 Heng Yang , Biqing Zeng , JianHao Yang , Youwei Song , Ruyang Xu

Automatic emotion recognition for real-life appli-cations is a challenging task. Human emotion expressions aresubtle, and can be conveyed by a combination of several emo-tions. In most existing emotion recognition studies, each…

声音 · 计算机科学 2022-03-08 Jay Desai , Houwei Cao , Ravi Shah

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

Chinese word segmentation (CWS) is the basic of Chinese natural language processing (NLP). The quality of word segmentation will directly affect the rest of NLP tasks. Recently, with the artificial intelligence tide rising again, Long…

机器学习 · 计算机科学 2021-05-21 Chen Jin , Zhuangwei Shi , Weihua Li , Yanbu Guo

Aspect based sentiment analysis (ABSA) involves three fundamental subtasks: aspect term extraction, opinion term extraction, and aspect-level sentiment classification. Early works only focused on solving one of these subtasks individually.…

计算与语言 · 计算机科学 2021-04-08 Yue Mao , Yi Shen , Chao Yu , Longjun Cai

Sentiments in opinionated text are often determined by both aspects and target words (or targets). We observe that targets and aspects interrelate in subtle ways, often yielding conflicting sentiments. Thus, a naive aggregation of…

计算与语言 · 计算机科学 2020-10-08 Zhe Zhang , Chung-Wei Hang , Munindar P. Singh

Aspect Sentiment Triplet Extraction (ASTE) is the task of extracting triplets of aspect terms, their associated sentiments, and the opinion terms that provide evidence for the expressed sentiments. Previous approaches to ASTE usually…

计算与语言 · 计算机科学 2021-08-16 Samson Yu Bai Jian , Tapas Nayak , Navonil Majumder , Soujanya Poria

Neural sequence-to-sequence networks with attention have achieved remarkable performance for machine translation. One of the reasons for their effectiveness is their ability to capture relevant source-side contextual information at each…

计算与语言 · 计算机科学 2018-10-02 Lesly Miculicich Werlen , Nikolaos Pappas , Dhananjay Ram , Andrei Popescu-Belis

I propose a novel dual-attention model(DAM) for aspect-level sentiment classification. Many methods have been proposed, such as support vector machines for artificial design features, long short-term memory networks based on attention…

计算与语言 · 计算机科学 2023-03-15 Mengfei Ye

Text sentiment analysis, also known as opinion mining, is research on the calculation of people's views, evaluations, attitude and emotions expressed by entities. Text sentiment analysis can be divided into text-level sentiment analysis,…

计算与语言 · 计算机科学 2022-07-08 Tianyu Zhao , Junping Du , Zhe Xue , Ang Li , Zeli Guan

From customer feedback to social media, understanding human sentiment in text is central to how machines can interact meaningfully with people. However, despite notable progress, accurately capturing sentiment remains a challenging task,…

信息检索 · 计算机科学 2026-03-24 Soudeep Ghoshal , Himanshu Buckchash , Sarita Paudel , Rubén Ruiz-Torrubiano

Target-dependent sentiment classification remains a challenge: modeling the semantic relatedness of a target with its context words in a sentence. Different context words have different influences on determining the sentiment polarity of a…

计算与语言 · 计算机科学 2016-09-30 Duyu Tang , Bing Qin , Xiaocheng Feng , Ting Liu

Sentiment analysis is a crucial task in natural language processing (NLP) with applications in public opinion monitoring, market research, and beyond. This paper introduces a three-class sentiment classification method for Weibo comments…

计算与语言 · 计算机科学 2024-12-24 Yin Qixuan