Research Article

Sentiment Analysis of Online Customer Reviews Using Modern Natural Language Processing Approaches

Number: 23 September 30, 2025
TR EN

Sentiment Analysis of Online Customer Reviews Using Modern Natural Language Processing Approaches

Abstract

In this study, sentiment analysis was conducted using Turkish online customer reviews of four seafood restaurants based in İzmir. Modern natural language processing approaches were employed as part of the analysis, including a Turkish sentiment analysis model for BERT and multilingual models within the framework of zero-shot text classification. In addition, large language models (LLMs) such as OpenAI 4o, Gemini 2.0 Flash, and DeepSeek V3 were evaluated. Model performance was assessed using evaluation metrics, including accuracy, precision, recall, and F1 score. The findings indicate that LLMs—particularly DeepSeek V3—demonstrated high performance and could effectively process contextual representations even in unlabelled datasets. Furthermore, sentiment trends towards restaurants over a four years were analysed to track temporal changes in customer satisfaction. This approach revealed temporal performance differences among the restaurants over time and enabled the development of sustainable improvement strategies aligned with customer expectations. The proposed method offers a fast and data-driven solution to assist managers in monitoring customer satisfaction, evaluating service quality, and identifying underlying causes of dissatisfaction, supporting strategic decision-making processes and contributing to corporate image management.

Keywords

References

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Details

Primary Language

English

Subjects

Business Administration, Business Systems in Context (Other)

Journal Section

Research Article

Early Pub Date

September 28, 2025

Publication Date

September 30, 2025

Submission Date

June 1, 2025

Acceptance Date

September 9, 2025

Published in Issue

Year 2025 Number: 23

APA
Koruyan, K. (2025). Sentiment Analysis of Online Customer Reviews Using Modern Natural Language Processing Approaches. Erzurum Teknik Üniversitesi Sosyal Bilimler Enstitüsü Dergisi, 23, 22-40. https://doi.org/10.29157/etusbed.1711500
AMA
1.Koruyan K. Sentiment Analysis of Online Customer Reviews Using Modern Natural Language Processing Approaches. ETUSBED. 2025;(23):22-40. doi:10.29157/etusbed.1711500
Chicago
Koruyan, Kutan. 2025. “Sentiment Analysis of Online Customer Reviews Using Modern Natural Language Processing Approaches”. Erzurum Teknik Üniversitesi Sosyal Bilimler Enstitüsü Dergisi, nos. 23: 22-40. https://doi.org/10.29157/etusbed.1711500.
EndNote
Koruyan K (September 1, 2025) Sentiment Analysis of Online Customer Reviews Using Modern Natural Language Processing Approaches. Erzurum Teknik Üniversitesi Sosyal Bilimler Enstitüsü Dergisi 23 22–40.
IEEE
[1]K. Koruyan, “Sentiment Analysis of Online Customer Reviews Using Modern Natural Language Processing Approaches”, ETUSBED, no. 23, pp. 22–40, Sept. 2025, doi: 10.29157/etusbed.1711500.
ISNAD
Koruyan, Kutan. “Sentiment Analysis of Online Customer Reviews Using Modern Natural Language Processing Approaches”. Erzurum Teknik Üniversitesi Sosyal Bilimler Enstitüsü Dergisi. 23 (September 1, 2025): 22-40. https://doi.org/10.29157/etusbed.1711500.
JAMA
1.Koruyan K. Sentiment Analysis of Online Customer Reviews Using Modern Natural Language Processing Approaches. ETUSBED. 2025;:22–40.
MLA
Koruyan, Kutan. “Sentiment Analysis of Online Customer Reviews Using Modern Natural Language Processing Approaches”. Erzurum Teknik Üniversitesi Sosyal Bilimler Enstitüsü Dergisi, no. 23, Sept. 2025, pp. 22-40, doi:10.29157/etusbed.1711500.
Vancouver
1.Kutan Koruyan. Sentiment Analysis of Online Customer Reviews Using Modern Natural Language Processing Approaches. ETUSBED. 2025 Sep. 1;(23):22-40. doi:10.29157/etusbed.1711500