Equipping Language Models with Tool Use Capability for Tabular Data Analysis in Finance

• URL: http://arxiv.org/abs/2401.15328v2
• Date: Tue, 30 Jan 2024 06:08:33 GMT
• Title: Equipping Language Models with Tool Use Capability for Tabular Data Analysis in Finance
• Authors: Adrian Theuma and Ehsan Shareghi
• Abstract summary: Large language models (LLMs) have exhibited an array of reasoning capabilities but face challenges like error propagation and hallucination. We explore the potential of language model augmentation with external tools to mitigate these limitations. We apply supervised fine-tuning on a LLaMA-2 13B Chat model to act both as a 'task router' and 'task solver'
• Score: 10.859392781606623
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Large language models (LLMs) have exhibited an array of reasoning capabilities but face challenges like error propagation and hallucination, particularly in specialised areas like finance, where data is heterogeneous, and precision is paramount. We explore the potential of language model augmentation with external tools to mitigate these limitations and offload certain reasoning steps to external tools that are more suited for the task, instead of solely depending on the LLM's inherent abilities. More concretely, using financial domain question-answering datasets, we apply supervised fine-tuning on a LLaMA-2 13B Chat model to act both as a 'task router' and 'task solver'. The 'task router' dynamically directs a question to either be answered internally by the LLM or externally via the right tool from the tool set. Our tool-equipped SFT model, Raven, demonstrates an improvement of 35.2% and 5.06% over the base model and SFT-only baselines, respectively, and is highly competitive with strong GPT-3.5 results. To the best of our knowledge, our work is the first that investigates tool augmentation of language models for the finance domain.

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