Fine-Tuning of Lightweight Large Language Models for Sentiment Classification on Heterogeneous Financial Textual Data

article Fine-Tuning of Lightweight Large Language Models for Sentiment Classification on Heterogeneous Financial Textual Data published Alvaro Paredes Amorin author Andre Python author Christoph Weisser author 2641380000-0003-0616-1027 Arxiv2025 eng Preprint10.48550/arXiv.2512.00946 Amorin, A. P., Python, A., & Weisser, C. (2025). Fine-Tuning of Lightweight Large Language Models for Sentiment Classification on Heterogeneous Financial Textual Data. Preprint. <a href="https://doi.org/10.48550/arXiv.2512.00946">https://doi.org/10.48550/arXiv.2512.00946</a> @article{Amorin_Python_Weisser_2025, title={Fine-Tuning of Lightweight Large Language Models for Sentiment Classification on Heterogeneous Financial Textual Data}, DOI={<a href="https://doi.org/10.48550/arXiv.2512.00946">10.48550/arXiv.2512.00946</a>}, journal={Preprint}, publisher={Arxiv}, author={Amorin, Alvaro Paredes and Python, Andre and Weisser, Christoph}, year={2025} } Amorin, Alvaro Paredes ; Python, Andre ; Weisser, Christoph: Fine-Tuning of Lightweight Large Language Models for Sentiment Classification on Heterogeneous Financial Textual Data. In: Preprint, Arxiv (2025) A. P. Amorin, A. Python, and C. Weisser, “Fine-Tuning of Lightweight Large Language Models for Sentiment Classification on Heterogeneous Financial Textual Data,” Preprint, 2025. Amorin AP, Python A, Weisser C. Fine-Tuning of Lightweight Large Language Models for Sentiment Classification on Heterogeneous Financial Textual Data. Preprint. 2025. doi:<a href="https://doi.org/10.48550/arXiv.2512.00946">10.48550/arXiv.2512.00946</a> Amorin, Alvaro Paredes, et al. “Fine-Tuning of Lightweight Large Language Models for Sentiment Classification on Heterogeneous Financial Textual Data.” Preprint, Arxiv, 2025, doi:<a href="https://doi.org/10.48550/arXiv.2512.00946">10.48550/arXiv.2512.00946</a>. Amorin, Alvaro Paredes, Andre Python, and Christoph Weisser. “Fine-Tuning of Lightweight Large Language Models for Sentiment Classification on Heterogeneous Financial Textual Data.” Preprint, 2025. <a href="https://doi.org/10.48550/arXiv.2512.00946">https://doi.org/10.48550/arXiv.2512.00946</a>. A.P. Amorin, A. Python, C. Weisser, Preprint (2025). 69622026-06-01T14:08:25Z2026-06-02T13:23:32Z