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Sentiment classification is an important process in understanding people's perception towards a product, service, or topic. Many natural language processing models have been proposed to solve the sentiment classification problem. However,…

Computation and Language · Computer Science 2019-10-09 Manish Munikar , Sushil Shakya , Aakash Shrestha

Student's feedback is an important source of collecting students' opinions to improve the quality of training activities. Implementing sentiment analysis into student feedback data, we can determine sentiments polarities which express all…

Computation and Language · Computer Science 2019-11-19 Phu X. V. Nguyen , Tham T. T. Hong , Kiet Van Nguyen , Ngan Luu-Thuy Nguyen

This paper aims to examine the potential of using the emerging deep reinforcement learning techniques in flight control. Instead of learning from scratch, we suggest to leverage domain knowledge available in learning to improve learning…

Artificial Intelligence · Computer Science 2024-10-30 Hyo-Sang Shin , Shaoming He , Antonios Tsourdos

Financial portfolio management describes the task of distributing funds and conducting trading operations on a set of financial assets, such as stocks, index funds, foreign exchange or cryptocurrencies, aiming to maximize the profit while…

Sensor-based activity recognition seeks the profound high-level knowledge about human activities from multitudes of low-level sensor readings. Conventional pattern recognition approaches have made tremendous progress in the past years.…

Computer Vision and Pattern Recognition · Computer Science 2018-03-02 Jindong Wang , Yiqiang Chen , Shuji Hao , Xiaohui Peng , Lisha Hu

Algorithmic trading, due to its inherent nature, is a difficult problem to tackle; there are too many variables involved in the real world which make it almost impossible to have reliable algorithms for automated stock trading. The lack of…

Artificial Intelligence · Computer Science 2020-01-28 Abhishek Nan , Anandh Perumal , Osmar R. Zaiane

Despite the widespread utilization of deep neural networks (DNNs) for speech emotion recognition (SER), they are severely restricted due to the paucity of labeled data for training. Recently, segment-based approaches for SER have been…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-31 Shuiyang Mao , P. C. Ching , Tan Lee

Adversarial attacks on machine learning-based classifiers, along with defense mechanisms, have been widely studied in the context of single-label classification problems. In this paper, we shift the attention to multi-label classification,…

Machine Learning · Computer Science 2022-12-07 Stefano Melacci , Gabriele Ciravegna , Angelo Sotgiu , Ambra Demontis , Battista Biggio , Marco Gori , Fabio Roli

Multimodal large language models (MLLMs) have shown remarkable capabilities in multimodal perception and understanding tasks. However, their effectiveness in specialized domains, such as remote sensing and medical imaging, remains limited.…

Computation and Language · Computer Science 2026-02-05 Qinglong Cao , Yuntian Chen , Chao Ma , Xiaokang Yang

Sentiment Analysis typically refers to using natural language processing, text analysis and computational linguistics to extract affect and emotion based information from text data. Our work explores how we can effectively use deep neural…

Computation and Language · Computer Science 2022-02-14 Shahrukh Khan , Mahnoor Shahid

Recently, there has been a growing interest in the use of deep learning techniques for tasks in natural language processing (NLP), with sentiment analysis being one of the most challenging areas, particularly in the Persian language. The…

Computation and Language · Computer Science 2024-03-19 Mohammad Heydari , Mohsen Khazeni , Mohammad Ali Soltanshahi

With the proliferation of digital content and the need for efficient information retrieval, this study's insights can be applied to various domains, including news services, e-commerce, and digital marketing, to provide users with more…

Information Retrieval · Computer Science 2024-04-24 Mike Nkongolo

The majority of existing speech emotion recognition research focuses on automatic emotion detection using training and testing data from same corpus collected under the same conditions. The performance of such systems has been shown to drop…

Computer Vision and Pattern Recognition · Computer Science 2020-07-29 Siddique Latif , Rajib Rana , Shahzad Younis , Junaid Qadir , Julien Epps

Consumer sentiment analysis is a recent fad for social media related applications such as healthcare, crime, finance, travel, and academics. Disentangling consumer perception to gain insight into the desired objective and reviews is…

Human-Computer Interaction · Computer Science 2020-08-25 Praphula Kumar Jain , Rajendra Pamula

Nowadays, deep learning methods, especially the convolutional neural networks (CNNs), have shown impressive performance on extracting abstract and high-level features from the hyperspectral image. However, general training process of CNNs…

Computer Vision and Pattern Recognition · Computer Science 2020-03-12 Zhiqiang Gong , Ping Zhong , Weidong Hu

How to model and encode the semantics of human-written text and select the type of neural network to process it are not settled issues in sentiment analysis. Accuracy and transferability are critical issues in machine learning in general.…

Information Retrieval · Computer Science 2020-06-02 Apostol Vassilev

Mainstream state-of-the-art domain generalization algorithms tend to prioritize the assumption on semantic invariance across domains. Meanwhile, the inherent intra-domain style invariance is usually underappreciated and put on the shelf. In…

Computer Vision and Pattern Recognition · Computer Science 2021-12-15 Yang Chen , Yu Wang , Yingwei Pan , Ting Yao , Xinmei Tian , Tao Mei

The opinion expressed in various Web sites and social-media is an essential contributor to the decision making process of several organizations. Existing sentiment analysis tools aim to extract the polarity (i.e., positive, negative,…

Artificial Intelligence · Computer Science 2020-08-21 Wissam Maamar Kouadri , Salima Benbernou , Mourad Ouziri , Themis Palpanas , Iheb Ben Amor

Sentiment analysis is integral to understanding the voice of the customer and informing businesses' strategic decisions. Conventional sentiment analysis involves three separate tasks: aspect-category detection, aspect-category sentiment…

Computation and Language · Computer Science 2025-08-14 Wenchang Li , John P. Lalor , Yixing Chen , Vamsi K. Kanuri

This paper presents a comprehensive review of loss functions and performance metrics in deep learning, highlighting key developments and practical insights across diverse application areas. We begin by outlining fundamental considerations…

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