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Aspect term extraction is a fundamental task in fine-grained sentiment analysis, which aims at detecting customer's opinion targets from reviews on product or service. The traditional supervised models can achieve promising results with…

Computation and Language · Computer Science 2023-03-03 Jingli Shi , Weihua Li , Quan Bai , Yi Yang , Jianhua Jiang

Cross-domain sentiment analysis aims to predict the sentiment of texts in the target domain using the model trained on the source domain to cope with the scarcity of labeled data. Previous studies are mostly cross-entropy-based methods for…

Computation and Language · Computer Science 2022-08-19 Yun Luo , Fang Guo , Zihan Liu , Yue Zhang

We consider the cross-domain sentiment classification problem, where a sentiment classifier is to be learned from a source domain and to be generalized to a target domain. Our approach explicitly minimizes the distance between the source…

Computation and Language · Computer Science 2018-09-05 Ruidan He , Wee Sun Lee , Hwee Tou Ng , Daniel Dahlmeier

Conversations on social media (SM) are increasingly being used to investigate social issues on the web, such as online harassment and rumor spread. For such issues, a common thread of research uses adversarial reactions, e.g., replies…

Computation and Language · Computer Science 2021-03-15 Sumeet Kumar , Ramon Villa Cox , Matthew Babcock , Kathleen M. Carley

Document representation is the core of many NLP tasks on machine understanding. A general representation learned in an unsupervised manner reserves generality and can be used for various applications. In practice, sentiment analysis (SA)…

Machine Learning · Computer Science 2024-01-15 Hao-Ming Fu , Pu-Jen Cheng

In this paper, we propose a method for keypoint discovery from a 2D image using image-level supervision. Recent works on unsupervised keypoint discovery reliably discover keypoints of aligned instances. However, when the target instances…

Computer Vision and Pattern Recognition · Computer Science 2021-09-29 Serim Ryou , Pietro Perona

Aspect-term sentiment analysis (ATSA) is a longstanding challenge in natural language understanding. It requires fine-grained semantical reasoning about a target entity appeared in the text. As manual annotation over the aspects is…

Computation and Language · Computer Science 2019-09-06 Xingyi Cheng , Weidi Xu , Taifeng Wang , Wei Chu

This paper describes our deep learning-based approach to multilingual aspect-based sentiment analysis as part of SemEval 2016 Task 5. We use a convolutional neural network (CNN) for both aspect extraction and aspect-based sentiment…

Computation and Language · Computer Science 2016-09-23 Sebastian Ruder , Parsa Ghaffari , John G. Breslin

When assigning quantitative labels to a dataset, different methodologies may rely on different scales. In particular, when assigning polarities to words in a sentiment lexicon, annotators may use binary, categorical, or continuous labels.…

Computation and Language · Computer Science 2019-04-08 Alexander Hoyle , Lawrence Wolf-Sonkin , Hanna Wallach , Ryan Cotterell , Isabelle Augenstein

The classic supervised classification algorithms are efficient, but time-consuming, complicated and not interpretable, which makes it difficult to analyze their results that limits the possibility to improve them based on real observations.…

Computation and Language · Computer Science 2018-03-05 Hussam Hamdan

Due to flourish of the Web 2.0, web opinion sources are rapidly emerging containing precious information useful for both customers and manufactures. Recently, feature based opinion mining techniques are gaining momentum in which customer…

Information Retrieval · Computer Science 2015-04-27 Ahmad Kamal

We introduce a weakly supervised approach for inferring the property of abstractness of words and expressions in the complete absence of labeled data. Exploiting only minimal linguistic clues and the contextual usage of a concept as…

Computation and Language · Computer Science 2018-09-06 Ella Rabinovich , Benjamin Sznajder , Artem Spector , Ilya Shnayderman , Ranit Aharonov , David Konopnicki , Noam Slonim

Every culture and language is unique. Our work expressly focuses on the uniqueness of culture and language in relation to human affect, specifically sentiment and emotion semantics, and how they manifest in social multimedia. We develop…

Multimedia · Computer Science 2015-10-08 Brendan Jou , Tao Chen , Nikolaos Pappas , Miriam Redi , Mercan Topkara , Shih-Fu Chang

Sentiment Analysis is the task of classifying documents based on the sentiments expressed in textual form, this can be achieved by using lexical and semantic methods. The purpose of this study is to investigate the use of semantics to…

Computation and Language · Computer Science 2020-09-02 Ukachi Osisiogu

Visual-textual sentiment analysis aims to predict sentiment with the input of a pair of image and text, which poses a challenge in learning effective features for diverse input images. To address this, we propose a holistic method that…

Computer Vision and Pattern Recognition · Computer Science 2024-06-11 Junyu Chen , Jie An , Hanjia Lyu , Christopher Kanan , Jiebo Luo

Sentiment analysis is an important task in natural language processing. In recent works, pre-trained language models are often used to achieve state-of-the-art results, especially when training data is scarce. It is common to fine-tune on…

Computation and Language · Computer Science 2022-04-13 Ehsan Hosseini-Asl , Wenhao Liu , Caiming Xiong

One of the challenges of natural language understanding is to deal with the subjectivity of sentences, which may express opinions and emotions that add layers of complexity and nuance. Sentiment analysis is a field that aims to extract and…

Computation and Language · Computer Science 2024-02-06 Adrian-Gabriel Chifu , Sébastien Fournier

We propose a weakly supervised semantic segmentation method for point clouds that predicts "per-point" labels from just "whole-scene" annotations. The key challenge here is the discrepancy between the target of dense per-point semantic…

Computer Vision and Pattern Recognition · Computer Science 2025-06-23 Shaobo Xia , Jun Yue , Kacper Kania , Leyuan Fang , Andrea Tagliasacchi , Kwang Moo Yi , Weiwei Sun

In this paper, we present Singlish sentiment lexicon, a concept-level knowledge base for sentiment analysis that associates multiword expressions to a set of emotion labels and a polarity value. Unlike many other sentiment analysis…

Computation and Language · Computer Science 2017-07-17 Rajiv Bajpai , Soujanya Poria , Danyun Ho , Erik Cambria

The application and usage of opinion mining, especially for business intelligence, product recommendation, targeted marketing etc. have fascinated many research attentions around the globe. Various research efforts attempted to mine…

Information Retrieval · Computer Science 2015-07-30 Ahmad Kamal