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We introduce a deep memory network for aspect level sentiment classification. Unlike feature-based SVM and sequential neural models such as LSTM, this approach explicitly captures the importance of each context word when inferring the…

Computation and Language · Computer Science 2016-09-27 Duyu Tang , Bing Qin , Ting Liu

With the development of the Internet, natural language processing (NLP), in which sentiment analysis is an important task, became vital in information processing.Sentiment analysis includes aspect sentiment classification. Aspect sentiment…

Computation and Language · Computer Science 2018-07-06 Yongping Xing , Chuangbai Xiao , Yifei Wu , Ziming Ding

Aspect-level sentiment classification (ASC) aims at identifying sentiment polarities towards aspects in a sentence, where the aspect can behave as a general Aspect Category (AC) or a specific Aspect Term (AT). However, due to the especially…

Computation and Language · Computer Science 2018-11-28 Zheng Li , Ying Wei , Yu Zhang , Xiang Zhang , Xin Li , Qiang Yang

Aspect based sentiment analysis, predicting sentiment polarity of given aspects, has drawn extensive attention. Previous attention-based models emphasize using aspect semantics to help extract opinion features for classification. However,…

Computation and Language · Computer Science 2021-04-13 Lu Xu , Lidong Bing , Wei Lu , Fei Huang

Existing works for aspect-based sentiment analysis (ABSA) have adopted a unified approach, which allows the interactive relations among subtasks. However, we observe that these methods tend to predict polarities based on the literal meaning…

Computation and Language · Computer Science 2021-09-15 Shinhyeok Oh , Dongyub Lee , Taesun Whang , IlNam Park , Gaeun Seo , EungGyun Kim , Harksoo Kim

Attention-based neural models were employed to detect the different aspects and sentiment polarities of the same target in targeted aspect-based sentiment analysis (TABSA). However, existing methods do not specifically pre-train reasonable…

Computation and Language · Computer Science 2019-06-18 Bin Liang , Jiachen Du , Ruifeng Xu , Binyang Li , Hejiao Huang

Emotional Voice Conversion aims to manipulate a speech according to a given emotion while preserving non-emotion components. Existing approaches cannot well express fine-grained emotional attributes. In this paper, we propose an…

Audio and Speech Processing · Electrical Eng. & Systems 2024-01-01 Yun Chen , Lingxiao Yang , Qi Chen , Jian-Huang Lai , Xiaohua Xie

Aspect-based sentiment analysis aims to identify the sentiment polarity of a specific aspect in product reviews. We notice that about 30% of reviews do not contain obvious opinion words, but still convey clear human-aware sentiment…

Computation and Language · Computer Science 2021-11-04 Zhengyan Li , Yicheng Zou , Chong Zhang , Qi Zhang , Zhongyu Wei

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…

Computation and Language · Computer Science 2021-03-08 Jinsong Su , Jialong Tang , Hui Jiang , Ziyao Lu , Yubin Ge , Linfeng Song , Deyi Xiong , Le Sun , Jiebo Luo

Deep learning techniques have achieved success in aspect-based sentiment analysis in recent years. However, there are two important issues that still remain to be further studied, i.e., 1) how to efficiently represent the target especially…

Computation and Language · Computer Science 2018-02-06 Shiliang Zheng , Rui Xia

Aspect-level sentiment classification (ASC) aims to predict the fine-grained sentiment polarity towards a given aspect mentioned in a review. Despite recent advances in ASC, enabling machines to preciously infer aspect sentiments is still…

Computation and Language · Computer Science 2022-03-02 Bowen Xing , Ivor W. Tsang

The objective of Aspect Based Sentiment Analysis is to capture the sentiment of reviewers associated with different aspects. However, complexity of the review sentences, presence of double negation and specific usage of words found in…

Computation and Language · Computer Science 2022-02-15 Abir Chakraborty

Aspect category sentiment analysis (ACSA) aims to predict the sentiment polarities of the aspect categories discussed in sentences. Since a sentence usually discusses one or more aspect categories and expresses different sentiments toward…

Computation and Language · Computer Science 2020-10-06 Yuncong Li , Cunxiang Yin , Sheng-hua Zhong

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…

Computation and Language · Computer Science 2020-12-18 Xuefeng Bai , Pengbo Liu , Yue Zhang

Cross-domain sentiment classification has been a hot spot these years, which aims to learn a reliable classifier using labeled data from a source domain and evaluate it on a target domain. In this vein, most approaches utilized domain…

Computation and Language · Computer Science 2022-09-08 Yicheng Zhu , Yiqiao Qiu , Qingyuan Wu , Fu Lee Wang , Yanghui Rao

Aspect-level sentiment classification (ALSC) aims at identifying the sentiment polarity of a specified aspect in a sentence. ALSC is a practical setting in aspect-based sentiment analysis due to no opinion term labeling needed, but it fails…

Computation and Language · Computer Science 2021-09-08 Bo Wang , Tao Shen , Guodong Long , Tianyi Zhou , Yi Chang

In the sentiment attitude extraction task, the aim is to identify <<attitudes>> -- sentiment relations between entities mentioned in text. In this paper, we provide a study on attention-based context encoders in the sentiment attitude…

Computation and Language · Computer Science 2020-07-01 Nicolay Rusnachenko , Natalia Loukachevitch

Sentiment Analysis has seen much progress in the past two decades. For the past few years, neural network approaches, primarily RNNs and CNNs, have been the most successful for this task. Recently, a new category of neural networks,…

Computation and Language · Computer Science 2018-12-20 Artaches Ambartsoumian , Fred Popowich

There has been much recent work on image captioning models that describe the factual aspects of an image. Recently, some models have incorporated non-factual aspects into the captions, such as sentiment or style. However, such models…

Computer Vision and Pattern Recognition · Computer Science 2018-11-27 Omid Mohamad Nezami , Mark Dras , Stephen Wan , Cecile Paris

Aspect-based sentiment classification aims to predict the sentiment polarity of a specific aspect in a sentence. However, most existing methods attempt to construct dependency relations into a homogeneous dependency graph with the sparsity…

Computation and Language · Computer Science 2021-12-07 Yukun Cao , Yijia Tang , Ziyue Wei , ChengKun Jin , Zeyu Miao , Yixin Fang , Haizhou Du , Feifei Xu