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Graph Neural Networks have recently become a prevailing paradigm for various high-impact graph analytical problems. Existing efforts can be mainly categorized as spectral-based and spatial-based methods. The major challenge for the former…

Machine Learning · Computer Science 2022-02-22 Yushun Dong , Kaize Ding , Brian Jalaian , Shuiwang Ji , Jundong Li

With the constantly growing number of reviews and other sentiment-bearing texts on the Web, the demand for automatic sentiment analysis algorithms continues to expand. Aspect-based sentiment classification (ABSC) allows for the automatic…

Computation and Language · Computer Science 2022-03-29 Gianni Brauwers , Flavius Frasincar

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

In representation learning on graph-structured data, many popular graph neural networks (GNNs) fail to capture long-range dependencies, leading to performance degradation. Furthermore, this weakness is magnified when the concerned graph is…

Machine Learning · Computer Science 2024-03-07 Mengying Jiang , Guizhong Liu , Yuanchao Su , Xinliang Wu

Aspect-based sentiment analysis (ABSA), a fine-grained sentiment classification task, has received much attention recently. Many works investigate sentiment information through opinion words, such as ''good'' and ''bad''. However, implicit…

Computation and Language · Computer Science 2023-12-19 Jihong Ouyang , Zhiyao Yang , Silong Liang , Bing Wang , Yimeng Wang , Ximing Li

We propose a novel scene graph generation model called Graph R-CNN, that is both effective and efficient at detecting objects and their relations in images. Our model contains a Relation Proposal Network (RePN) that efficiently deals with…

Computer Vision and Pattern Recognition · Computer Science 2018-08-02 Jianwei Yang , Jiasen Lu , Stefan Lee , Dhruv Batra , Devi Parikh

The perceptual loss has been widely used as an effective loss term in image synthesis tasks including image super-resolution, and style transfer. It was believed that the success lies in the high-level perceptual feature representations…

Computer Vision and Pattern Recognition · Computer Science 2021-03-22 Yifan Liu , Hao Chen , Yu Chen , Wei Yin , Chunhua Shen

Multimodal aspect-based sentiment analysis (MABSA) aims to identify aspect-level sentiments by jointly modeling textual and visual information, which is essential for fine-grained opinion understanding in social media. Existing approaches…

Computation and Language · Computer Science 2026-01-13 Zhongzheng Wang , Yuanhe Tian , Hongzhi Wang , Yan Song

Emotion recognition is essential in the diagnosis and rehabilitation of various mental diseases. In the last decade, electroencephalogram (EEG)-based emotion recognition has been intensively investigated due to its prominative accuracy and…

Human-Computer Interaction · Computer Science 2024-08-22 Ming Jin , Enwei Zhu , Changde Du , Huiguang He , Jinpeng Li

A large number of real-world networks include multiple types of nodes and edges. Graph Neural Network (GNN) emerged as a deep learning framework to generate node and graph embeddings for downstream machine learning tasks. However, popular…

Machine Learning · Computer Science 2024-11-26 Ziynet Nesibe Kesimoglu , Serdar Bozdag

Gradient-based explanation methods play an important role in the field of interpreting complex deep neural networks for NLP models. However, the existing work has shown that the gradients of a model are unstable and easily manipulable,…

Computation and Language · Computer Science 2023-02-22 Zhenxiao Cheng , Jie Zhou , Wen Wu , Qin Chen , Liang He

Machine learning techniques for road networks hold the potential to facilitate many important transportation applications. Graph Convolutional Networks (GCNs) are neural networks that are capable of leveraging the structure of a road…

Machine Learning · Computer Science 2020-07-23 Tobias Skovgaard Jepsen , Christian S. Jensen , Thomas Dyhre Nielsen

Recently, the reciprocal recommendation, especially for online dating applications, has attracted more and more research attention. Different from conventional recommendation problems, the reciprocal recommendation aims to simultaneously…

Information Retrieval · Computer Science 2020-11-26 Linhao Luo , Liqi Yang , Ju Xin , Yixiang Fang , Xiaofeng Zhang , Xiaofei Yang , Kai Chen , Zhiyuan Zhang , Kai Liu

Graph structural information such as topologies or connectivities provides valuable guidance for graph convolutional networks (GCNs) to learn nodes' representations. Existing GCN models that capture nodes' structural information weight in-…

Machine Learning · Computer Science 2021-07-22 Yunxiang Zhao , Jianzhong Qi , Qingwei Liu , Rui Zhang

The Web has become the main platform where people express their opinions about entities of interest and their associated aspects. Aspect-Based Sentiment Analysis (ABSA) aims to automatically compute the sentiment towards these aspects from…

Computation and Language · Computer Science 2020-04-21 Maria Mihaela Trusca , Daan Wassenberg , Flavius Frasincar , Rommert Dekker

Aspect-based sentiment analysis (ABSA) identifies sentiment information related to specific aspects and provides deeper market insights to businesses and organizations. With the emergence of large language models (LMs), recent studies have…

Computation and Language · Computer Science 2024-05-30 Guangmin Zheng , Jin Wang , Liang-Chih Yu , Xuejie Zhang

Aspect-based Sentiment Analysis (ABSA) is an important sentiment analysis task, which aims to determine the sentiment polarity towards an aspect in a sentence. Due to the expensive and limited labeled data, data generation (DG) has become…

Computation and Language · Computer Science 2024-10-01 Qihuang Zhong , Haiyun Li , Luyao Zhuang , Juhua Liu , Bo Du

Emotion recognition in conversation (ERC) is a crucial component in affective dialogue systems, which helps the system understand users' emotions and generate empathetic responses. However, most works focus on modeling speaker and…

Computation and Language · Computer Science 2021-07-15 Jingwen Hu , Yuchen Liu , Jinming Zhao , Qin Jin

Aspect-based Sentiment Analysis (ABSA) aims to identify the aspect terms, their corresponding sentiment polarities, and the opinion terms. There exist seven subtasks in ABSA. Most studies only focus on the subsets of these subtasks, which…

Computation and Language · Computer Science 2021-06-09 Hang Yan , Junqi Dai , Tuo ji , Xipeng Qiu , Zheng Zhang

We present an efficient speech separation neural network, ARFDCN, which combines dilated convolutions, multi-scale fusion (MSF), and channel attention to overcome the limited receptive field of convolution-based networks and the high…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-12 Junyu Wang