Zero-Shot Question Answering over Financial Documents using Large Language Models

• URL: http://arxiv.org/abs/2311.14722v1
• Date: Sun, 19 Nov 2023 16:23:34 GMT
• Title: Zero-Shot Question Answering over Financial Documents using Large Language Models
• Authors: Karmvir Singh Phogat, Chetan Harsha, Sridhar Dasaratha, Shashishekar Ramakrishna, Sai Akhil Puranam
• Abstract summary: We introduce a large language model (LLM) based approach to answer complex questions requiring multi-hop numerical reasoning over financial reports. We use novel zero-shot prompts that guide the LLM to encode the required reasoning into a Python program or a domain specific language.
• Score: 0.18749305679160366
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: We introduce a large language model (LLM) based approach to answer complex questions requiring multi-hop numerical reasoning over financial reports. While LLMs have exhibited remarkable performance on various natural language and reasoning tasks, complex reasoning problems often rely on few-shot prompts that require carefully crafted examples. In contrast, our approach uses novel zero-shot prompts that guide the LLM to encode the required reasoning into a Python program or a domain specific language. The generated program is then executed by a program interpreter, thus mitigating the limitations of LLM in performing accurate arithmetic calculations. We evaluate the proposed approach on three financial datasets using some of the recently developed generative pretrained transformer (GPT) models and perform comparisons with various zero-shot baselines. The experimental results demonstrate that our approach significantly improves the accuracy for all the LLMs over their respective baselines. We provide a detailed analysis of the results, generating insights to support our findings. The success of our approach demonstrates the enormous potential to extract complex domain specific numerical reasoning by designing zero-shot prompts to effectively exploit the knowledge embedded in LLMs.

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