Deep Transform Ensemble Model for Sentiment Analysis

Authors

Corressponding author's email:

trangpth@hcmute.edu.vn

DOI:

https://doi.org/10.54644/jte.2025.1897

Keywords:

BERT-CNN, BERT-BiLSTM, Deep transform ensemble, Ensemble model, Sentiment analysis

Abstract

The ensemble method is a technique that has garnered significant attention in recent years, particularly in the field of sentiment analysis. It leverages the strengths of multiple models to enhance overall performance. Although many ensemble methods for sentiment analysis have been proposed, few have incorporated deep learning models. In this study, we propose an ensemble model based on transformers and deep learning to improve sentiment analysis performance. The proposed model comprises the following main components: (i) an embedding layer, which converts input sentences into vector matrices; (ii) a BERT-LSTM-based sentiment classifier, which extracts and learns global and contextual features from the embedding layer; (iii) a BERT-CNN-based sentiment classifier, which extracts and learns local and semantic features from the embedding layer; (iv) an ensemble layer, which combines the extracted features; and (v) an ensemble classifier layer, which classifies the sentiment of the input sentences. The model is evaluated on four benchmark datasets. Experimental results show that it improves sentiment analysis performance by at least 0.02 and up to 0.05.

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Author Biographies

Quang Khai Tran, Ho Chi Minh City University of Technology and Education, Vietnam

Quang Khai Tran received the master's degree in computer science from University of Information Technology – Vietnam National University, Ho Chi Minh City in 2019. Currently, he lectures at the Faculty of Information Technology within the Ho Chi Minh City University of Technology and Education in Vietnam. His research interests include computer vision, image processing and person re-identification. Email: khaitq@hcmute.edu.vn. ORCID:  https://orcid.org/0009-0005-0804-6550

Thi Huyen Trang Phan, Ho Chi Minh City University of Technology and Education, Vietnam

Huyen Trang Phan received the M.S. degree in computer science from the University of Science and Technology - The University of Da Nang, Vietnam, in 2015, Ph.D. degree and Postdoctoral in Computer Science at the Department of Computer Engineering from Yeungnam University, South Korea in 2020 and 2021. She worked as a research professor at the Department of Computer Engineering, Yeungnam University, South Korea, from 2021 to 2024. She is currently a lecturer at the Faculty of Information Technology, Ho Chi Minh City University of Technology and Education, Vietnam. She is the author of 10 journal papers and 15 conference papers. Her research interests include sentiment analysis, fake news detection, text summarization, and decision support systems.

Email: trangpth@hcmute.edu.vn. ORCID:  https://orcid.org/0000-0002-7466-9562

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Published

28-08-2025

How to Cite

[1]
Q. K. Tran and T. H. T. Phan, “Deep Transform Ensemble Model for Sentiment Analysis”, JTE, vol. 20, no. 03, pp. 111–121, Aug. 2025.

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