Sentiment Analysis of Lithuanian Online Reviews Using Large Language Models
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arXiv
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| Format: | Preprint |
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2024
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| author | Vileikytė, Brigita Lukoševičius, Mantas Stankevičius, Lukas |
| author_facet | Vileikytė, Brigita Lukoševičius, Mantas Stankevičius, Lukas |
| contents | Sentiment analysis is a widely researched area within Natural Language Processing (NLP), attracting significant interest due to the advent of automated solutions. Despite this, the task remains challenging because of the inherent complexity of languages and the subjective nature of sentiments. It is even more challenging for less-studied and less-resourced languages such as Lithuanian. Our review of existing Lithuanian NLP research reveals that traditional machine learning methods and classification algorithms have limited effectiveness for the task. In this work, we address sentiment analysis of Lithuanian five-star-based online reviews from multiple domains that we collect and clean. We apply transformer models to this task for the first time, exploring the capabilities of pre-trained multilingual Large Language Models (LLMs), specifically focusing on fine-tuning BERT and T5 models. Given the inherent difficulty of the task, the fine-tuned models perform quite well, especially when the sentiments themselves are less ambiguous: 80.74% and 89.61% testing recognition accuracy of the most popular one- and five-star reviews respectively. They significantly outperform current commercial state-of-the-art general-purpose LLM GPT-4. We openly share our fine-tuned LLMs online. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_19914 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Sentiment Analysis of Lithuanian Online Reviews Using Large Language Models Vileikytė, Brigita Lukoševičius, Mantas Stankevičius, Lukas Computation and Language Information Retrieval Machine Learning 68T07, 68T50, 68T05, I.2.6; I.2.7 Sentiment analysis is a widely researched area within Natural Language Processing (NLP), attracting significant interest due to the advent of automated solutions. Despite this, the task remains challenging because of the inherent complexity of languages and the subjective nature of sentiments. It is even more challenging for less-studied and less-resourced languages such as Lithuanian. Our review of existing Lithuanian NLP research reveals that traditional machine learning methods and classification algorithms have limited effectiveness for the task. In this work, we address sentiment analysis of Lithuanian five-star-based online reviews from multiple domains that we collect and clean. We apply transformer models to this task for the first time, exploring the capabilities of pre-trained multilingual Large Language Models (LLMs), specifically focusing on fine-tuning BERT and T5 models. Given the inherent difficulty of the task, the fine-tuned models perform quite well, especially when the sentiments themselves are less ambiguous: 80.74% and 89.61% testing recognition accuracy of the most popular one- and five-star reviews respectively. They significantly outperform current commercial state-of-the-art general-purpose LLM GPT-4. We openly share our fine-tuned LLMs online. |
| title | Sentiment Analysis of Lithuanian Online Reviews Using Large Language Models |
| topic | Computation and Language Information Retrieval Machine Learning 68T07, 68T50, 68T05, I.2.6; I.2.7 |
| url | https://arxiv.org/abs/2407.19914 |