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In several research areas, ratings data and response times have been successfully used to unfold the stage-wise process through which human raters provide their responses to questionnaires and social surveys. A limitation of the standard…

Applications · Statistics 2022-03-24 Niccolò Cao , Antonio Calcagnì

In this paper, we present a novel approach to identify feature specific expressions of opinion in product reviews with different features and mixed emotions. The objective is realized by identifying a set of potential features in the review…

Information Retrieval · Computer Science 2012-09-19 Subhabrata Mukherjee , Pushpak Bhattacharyya

Feature selection is a vital technique in machine learning, as it can reduce computational complexity, improve model performance, and mitigate the risk of overfitting. However, the increasing complexity and dimensionality of datasets pose…

Machine Learning · Computer Science 2024-07-24 Yuepeng Chen , Weiping Ding , Hengrong Ju , Jiashuang Huang , Tao Yin

Compressed sensing and its extensions have recently triggered interest in randomized signal acquisition. A key finding is that random measurements provide sparse signal reconstruction guarantees for efficient and stable algorithms with a…

Information Theory · Computer Science 2014-07-08 Felix Krahmer , Holger Rauhut

This paper introduces a novel approach for 3D semantic instance segmentation on point clouds. A 3D convolutional neural network called submanifold sparse convolutional network is used to generate semantic predictions and instance embeddings…

Computer Vision and Pattern Recognition · Computer Science 2021-03-24 Zhidong Liang , Ming Yang , Chunxiang Wang

Sentiment transfer aims at revising the input text to satisfy a given sentiment polarity while retaining the original semantic content. The nucleus of sentiment transfer lies in precisely separating the sentiment information from the…

Computation and Language · Computer Science 2023-02-24 Yingze Xie , Jie Xu , LiQiang Qiao , Yun Liu , Feiren Huang , Chaozhuo Li

Sequential recommendation aims to model dynamic user behavior from historical interactions. Self-attentive methods have proven effective at capturing short-term dynamics and long-term preferences. Despite their success, these approaches…

Information Retrieval · Computer Science 2022-04-06 Jiacheng Li , Tong Zhao , Jin Li , Jim Chan , Christos Faloutsos , George Karypis , Soo-Min Pantel , Julian McAuley

Sentiment analysis, a popular technique for opinion mining, has been used by the software engineering research community for tasks such as assessing app reviews, developer emotions in issue trackers and developer opinions on APIs. Past…

Computation and Language · Computer Science 2018-12-27 Achyudh Ram , Meiyappan Nagappan

Despite the recent successes of deep learning, such models are still far from some human abilities like learning from few examples, reasoning and explaining decisions. In this paper, we focus on organ annotation in medical images and we…

Computer Vision and Pattern Recognition · Computer Science 2020-01-01 Régis Pierrard , Jean-Philippe Poli , Céline Hudelot

A new fuzzy method is developed using triangular/trapezoidal fuzzy numbers for evaluating a group's mean performance, when qualitative grades instead of numerical scores are used for assessing its members' individual performance. Also, a…

Artificial Intelligence · Computer Science 2020-11-24 Michael Voskoglou

Real-world problems often involve complex and unstructured sets of measurements, which occur when sensors are sparsely placed in either space or time. Being able to model this irregular spatiotemporal data and extract meaningful forecasts…

Machine Learning · Computer Science 2024-04-17 Arnaud Pannatier , Kyle Matoba , François Fleuret

Sentiment analysis is a field within NLP that has gained importance because it is applied in various areas such as; social media surveillance, customer feedback evaluation and market research. At the same time, distributed systems allow for…

Computation and Language · Computer Science 2025-03-25 Mahak Shah , Akaash Vishal Hazarika , Meetu Malhotra , Sachin C. Patil , Joshit Mohanty

Paraphrase generation, a.k.a. paraphrasing, is a common and important task in natural language processing. Emotional paraphrasing, which changes the emotion embodied in a piece of text while preserving its meaning, has many potential…

Computation and Language · Computer Science 2023-06-12 Justin J. Xie , Ameeta Agrawal

In this study, we introduce \textbf{AttendSeg}, a low-precision, highly compact deep neural network tailored for on-device semantic segmentation. AttendSeg possesses a self-attention network architecture comprising of light-weight attention…

Computer Vision and Pattern Recognition · Computer Science 2021-05-03 Xiaoyu Wen , Mahmoud Famouri , Andrew Hryniowski , Alexander Wong

Over the past years, semantic segmentation, as many other tasks in computer vision, benefited from the progress in deep neural networks, resulting in significantly improved performance. However, deep architectures trained with…

Computer Vision and Pattern Recognition · Computer Science 2022-02-02 Guanglei Yang , Enrico Fini , Dan Xu , Paolo Rota , Mingli Ding , Hao Tang , Xavier Alameda-Pineda , Elisa Ricci

Multimodal affective computing, learning to recognize and interpret human affects and subjective information from multiple data sources, is still challenging because: (i) it is hard to extract informative features to represent human affects…

Computation and Language · Computer Science 2018-05-23 Yue Gu , Kangning Yang , Shiyu Fu , Shuhong Chen , Xinyu Li , Ivan Marsic

Aspect-level sentiment classification aims to identify the sentiment polarity towards a specific aspect term in a sentence. Most current approaches mainly consider the semantic information by utilizing attention mechanisms to capture the…

Computation and Language · Computer Science 2021-02-12 Xiaochen Hou , Jing Huang , Guangtao Wang , Xiaodong He , Bowen Zhou

Sentiment analysis is an important task in natural language processing (NLP). Most of existing state-of-the-art methods are under the supervised learning paradigm. However, human annotations can be scarce. Thus, we should leverage more weak…

Computation and Language · Computer Science 2021-04-20 Ziqian Zeng , Yangqiu Song

In this paper we establish a link between fuzzy and preferential semantics for description logics and Self-Organising Maps, which have been proposed as possible candidates to explain the psychological mechanisms underlying category…

Artificial Intelligence · Computer Science 2022-02-07 Laura Giordano , Valentina Gliozzi , Daniele Theseider Dupré

Extracting sentiment elements using pre-trained generative models has recently led to large improvements in aspect-based sentiment analysis benchmarks. However, these models always need large-scale computing resources, and they also ignore…

Computation and Language · Computer Science 2023-06-16 Xiaoyi Bao , Xiaotong Jiang , Zhongqing Wang , Yue Zhang , Guodong Zhou