Optimizing Performance: How Compact Models Match or Exceed GPT's Classification Capabilities through Fine-Tuning

Fuente: arXiv
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Autori principali: Lefort, Baptiste, Benhamou, Eric, Ohana, Jean-Jacques, Saltiel, David, Guez, Beatrice
Natura: Preprint
Pubblicazione: 2024
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author Lefort, Baptiste
Benhamou, Eric
Ohana, Jean-Jacques
Saltiel, David
Guez, Beatrice
author_facet Lefort, Baptiste
Benhamou, Eric
Ohana, Jean-Jacques
Saltiel, David
Guez, Beatrice
contents In this paper, we demonstrate that non-generative, small-sized models such as FinBERT and FinDRoBERTa, when fine-tuned, can outperform GPT-3.5 and GPT-4 models in zero-shot learning settings in sentiment analysis for financial news. These fine-tuned models show comparable results to GPT-3.5 when it is fine-tuned on the task of determining market sentiment from daily financial news summaries sourced from Bloomberg. To fine-tune and compare these models, we created a novel database, which assigns a market score to each piece of news without human interpretation bias, systematically identifying the mentioned companies and analyzing whether their stocks have gone up, down, or remained neutral. Furthermore, the paper shows that the assumptions of Condorcet's Jury Theorem do not hold suggesting that fine-tuned small models are not independent of the fine-tuned GPT models, indicating behavioural similarities. Lastly, the resulted fine-tuned models are made publicly available on HuggingFace, providing a resource for further research in financial sentiment analysis and text classification.
format Preprint
id arxiv_https___arxiv_org_abs_2409_11408
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Optimizing Performance: How Compact Models Match or Exceed GPT's Classification Capabilities through Fine-Tuning
Lefort, Baptiste
Benhamou, Eric
Ohana, Jean-Jacques
Saltiel, David
Guez, Beatrice
Computation and Language
Statistical Finance
In this paper, we demonstrate that non-generative, small-sized models such as FinBERT and FinDRoBERTa, when fine-tuned, can outperform GPT-3.5 and GPT-4 models in zero-shot learning settings in sentiment analysis for financial news. These fine-tuned models show comparable results to GPT-3.5 when it is fine-tuned on the task of determining market sentiment from daily financial news summaries sourced from Bloomberg. To fine-tune and compare these models, we created a novel database, which assigns a market score to each piece of news without human interpretation bias, systematically identifying the mentioned companies and analyzing whether their stocks have gone up, down, or remained neutral. Furthermore, the paper shows that the assumptions of Condorcet's Jury Theorem do not hold suggesting that fine-tuned small models are not independent of the fine-tuned GPT models, indicating behavioural similarities. Lastly, the resulted fine-tuned models are made publicly available on HuggingFace, providing a resource for further research in financial sentiment analysis and text classification.
title Optimizing Performance: How Compact Models Match or Exceed GPT's Classification Capabilities through Fine-Tuning
topic Computation and Language
Statistical Finance
url https://arxiv.org/abs/2409.11408