Large Language Models in Targeted Sentiment Analysis
<|reference_start|>Large Language Models in Targeted Sentiment Analysis: In this paper we investigate the use of decoder-based generative transformers for extracting sentiment towards the named entities in Russian news articles. We study sentiment analysis capabilities of instruction-tuned large language models (LLMs). We consider the dataset of RuSentNE-2023 in our study. The first group of experiments was aimed at the evaluation of zero-shot capabilities of LLMs with closed and open transparencies. The second covers the fine-tuning of Flan-T5 using the "chain-of-thought" (CoT) three-hop reasoning framework (THoR). We found that the results of the zero-shot approaches are similar to the results achieved by baseline fine-tuned encoder-based transformers (BERT-base). Reasoning capabilities of the fine-tuned Flan-T5 models with THoR achieve at least 5% increment with the base-size model compared to the results of the zero-shot experiment. The best results of sentiment analysis on RuSentNE-2023 were achieved by fine-tuned Flan-T5-xl, which surpassed the results of previous state-of-the-art transformer-based classifiers. Our CoT application framework is publicly available: https://github.com/nicolay-r/Reasoning-for-Sentiment-Analysis-Framework<|reference_end|>
@article{rusnachenko2024large,
    title={Large Language Models in Targeted Sentiment Analysis},
    author={Nicolay Rusnachenko, Anton Golubev, Natalia Loukachevitch},
    journal={arXiv preprint arXiv:2404.12342},
    year={2024},
    archivePrefix={arXiv},
    eprint={2404.12342},
    primaryClass={cs.CL}
}