Large Language Models in Targeted Sentiment Analysis for Russian
Authors: Rusnachenko, N., Golubev, A. and Loukachevitch, N.
Journal: Lobachevskii Journal of Mathematics
Volume: 45
Issue: 7
Pages: 3148-3158
eISSN: 1818-9962
ISSN: 1995-0802
DOI: 10.1134/S1995080224603758
Abstract:Abstract: 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). Reasoning capabilities of the fine-tuned Flan-T5 models with THoR achieve at least 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, 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
Source: Scopus