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In Multi-Label Text Classification (MLTC), one sample can belong to more than one class. It is observed that most MLTC tasks, there are dependencies or correlations among labels. Existing methods tend to ignore the relationship among…

计算与语言 · 计算机科学 2020-03-27 Ankit Pal , Muru Selvakumar , Malaikannan Sankarasubbu

The demand for accurate food quantification has increased in the recent years, driven by the needs of applications in dietary monitoring. At the same time, computer vision approaches have exhibited great potential in automating tasks within…

计算机视觉与模式识别 · 计算机科学 2023-08-23 Valasia Vlachopoulou , Ioannis Sarafis , Alexandros Papadopoulos

Multi-label classification plays a momentous role in perceiving intricate contents of an aerial image and triggers several related studies over the last years. However, most of them deploy few efforts in exploiting label relations, while…

计算机视觉与模式识别 · 计算机科学 2020-07-15 Yuansheng Hua , Lichao Mou , Xiao Xiang Zhu

The growing prosperity of social networks has brought great challenges to the sentimental tendency mining of users. As more and more researchers pay attention to the sentimental tendency of online users, rich research results have been…

计算与语言 · 计算机科学 2019-07-04 Donghang Pan , Jingling Yuan , Lin Li , Deming Sheng

We propose a topic-dependent attention model for sentiment classification and topic extraction. Our model assumes that a global topic embedding is shared across documents and employs an attention mechanism to derive local topic embedding…

计算与语言 · 计算机科学 2019-08-20 Gabriele Pergola , Lin Gui , Yulan He

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

This paper proposes a variational self-attention model (VSAM) that employs variational inference to derive self-attention. We model the self-attention vector as random variables by imposing a probabilistic distribution. The self-attention…

计算与语言 · 计算机科学 2020-03-11 Qiang Zhang , Shangsong Liang , Emine Yilmaz

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…

计算机视觉与模式识别 · 计算机科学 2018-11-27 Omid Mohamad Nezami , Mark Dras , Stephen Wan , Cecile Paris

The state-of-the-art solutions for Aspect-Level Sentiment Analysis (ALSA) were built on a variety of deep neural networks (DNN), whose efficacy depends on large amounts of accurately labeled training data. Unfortunately, high-quality…

机器学习 · 计算机科学 2019-07-02 Yanyan Wang , Qun Chen , Jiquan Shen , Boyi Hou , Murtadha Ahmed , Zhanhuai Li

In this paper, we propose a two-layered multi-task attention based neural network that performs sentiment analysis through emotion analysis. The proposed approach is based on Bidirectional Long Short-Term Memory and uses Distributional…

计算与语言 · 计算机科学 2019-12-02 Abhishek Kumar , Asif Ekbal , Daisuke Kawahra , Sadao Kurohashi

This paper addresses the problem of modeling textual conversations and detecting emotions. Our proposed model makes use of 1) deep transfer learning rather than the classical shallow methods of word embedding; 2) self-attention mechanisms…

计算与语言 · 计算机科学 2019-06-18 Waleed Ragheb , Jérôme Azé , Sandra Bringay , Maximilien Servajean

Multi-label aspect category detection is intended to detect multiple aspect categories occurring in a given sentence. Since aspect category detection often suffers from limited datasets and data sparsity, the prototypical network with…

计算与语言 · 计算机科学 2023-09-28 Zeyu Wang , Mizuho Iwaihara

Opinion phrase extraction is one of the key tasks in fine-grained sentiment analysis. While opinion expressions could be generic subjective expressions, aspect specific opinion expressions contain both the aspect as well as the opinion…

计算与语言 · 计算机科学 2019-02-08 Abhishek Laddha , Arjun Mukherjee

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

Existing aspect based sentiment analysis (ABSA) approaches leverage various neural network models to extract the aspect sentiments via learning aspect-specific feature representations. However, these approaches heavily rely on manual…

计算与语言 · 计算机科学 2020-03-24 Yao Qiang , Xin Li , Dongxiao Zhu

Aspect-Target Sentiment Classification (ATSC) is a subtask of Aspect-Based Sentiment Analysis (ABSA), which has many applications e.g. in e-commerce, where data and insights from reviews can be leveraged to create value for businesses and…

计算与语言 · 计算机科学 2019-11-20 Alexander Rietzler , Sebastian Stabinger , Paul Opitz , Stefan Engl

It has been widely accepted that Long Short-Term Memory (LSTM) network, coupled with attention mechanism and memory module, is useful for aspect-level sentiment classification. However, existing approaches largely rely on the modelling of…

计算与语言 · 计算机科学 2019-09-24 Chen Zhang , Qiuchi Li , Dawei Song

Deep neural networks (DNNs) have been widely employed in recommender systems including incorporating attention mechanism for performance improvement. However, most of existing attention-based models only apply item-level attention on user…

信息检索 · 计算机科学 2020-06-20 Deqing Yang , Zengcun Song , Lvxin Xue , Yanghua Xiao

Attention mechanisms have improved the performance of NLP tasks while allowing models to remain explainable. Self-attention is currently widely used, however interpretability is difficult due to the numerous attention distributions. Recent…

计算与语言 · 计算机科学 2020-10-30 Khalil Mrini , Franck Dernoncourt , Quan Tran , Trung Bui , Walter Chang , Ndapa Nakashole

In this paper, we propose an attention-based classifier that predicts multiple emotions of a given sentence. Our model imitates human's two-step procedure of sentence understanding and it can effectively represent and classify sentences.…

计算与语言 · 计算机科学 2018-04-18 Yanghoon Kim , Hwanhee Lee , Kyomin Jung