Systematic Evaluation of Long-Context LLMs on Financial Concepts

Fuente: arXiv
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Auteurs principaux: Gupta, Lavanya, Sharma, Saket, Zhao, Yiyun
Format: Preprint
Publié: 2024
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author Gupta, Lavanya
Sharma, Saket
Zhao, Yiyun
author_facet Gupta, Lavanya
Sharma, Saket
Zhao, Yiyun
contents Long-context large language models (LC LLMs) promise to increase reliability of LLMs in real-world tasks requiring processing and understanding of long input documents. However, this ability of LC LLMs to reliably utilize their growing context windows remains under investigation. In this work, we evaluate the performance of state-of-the-art GPT-4 suite of LC LLMs in solving a series of progressively challenging tasks, as a function of factors such as context length, task difficulty, and position of key information by creating a real world financial news dataset. Our findings indicate that LC LLMs exhibit brittleness at longer context lengths even for simple tasks, with performance deteriorating sharply as task complexity increases. At longer context lengths, these state-of-the-art models experience catastrophic failures in instruction following resulting in degenerate outputs. Our prompt ablations also reveal unfortunate continued sensitivity to both the placement of the task instruction in the context window as well as minor markdown formatting. Finally, we advocate for more rigorous evaluation of LC LLMs by employing holistic metrics such as F1 (rather than recall) and reporting confidence intervals, thereby ensuring robust and conclusive findings.
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id arxiv_https___arxiv_org_abs_2412_15386
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Systematic Evaluation of Long-Context LLMs on Financial Concepts
Gupta, Lavanya
Sharma, Saket
Zhao, Yiyun
Computation and Language
Artificial Intelligence
Long-context large language models (LC LLMs) promise to increase reliability of LLMs in real-world tasks requiring processing and understanding of long input documents. However, this ability of LC LLMs to reliably utilize their growing context windows remains under investigation. In this work, we evaluate the performance of state-of-the-art GPT-4 suite of LC LLMs in solving a series of progressively challenging tasks, as a function of factors such as context length, task difficulty, and position of key information by creating a real world financial news dataset. Our findings indicate that LC LLMs exhibit brittleness at longer context lengths even for simple tasks, with performance deteriorating sharply as task complexity increases. At longer context lengths, these state-of-the-art models experience catastrophic failures in instruction following resulting in degenerate outputs. Our prompt ablations also reveal unfortunate continued sensitivity to both the placement of the task instruction in the context window as well as minor markdown formatting. Finally, we advocate for more rigorous evaluation of LC LLMs by employing holistic metrics such as F1 (rather than recall) and reporting confidence intervals, thereby ensuring robust and conclusive findings.
title Systematic Evaluation of Long-Context LLMs on Financial Concepts
topic Computation and Language
Artificial Intelligence
url https://arxiv.org/abs/2412.15386