Third-Party Language Model Performance Prediction from Instruction

Rahul Nadkarni; Yizhong Wang; Noah A. Smith

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arXiv · 2403.12413

Third-Party Language Model Performance Prediction from Instruction

Rahul Nadkarni·Yizhong Wang·Noah A. Smith

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Abstract

Language model-based instruction-following systems have lately shown increasing performance on many benchmark tasks, demonstrating the capability of adapting to a broad variety of instructions. However, such systems are often not designed to be transparent about their limitations; a user may easily prompt a model with an instruction without any idea of whether the responses should be expected to be accurate, or if the system is even capable of performing the task. We propose a third party performance prediction framework, where a separate model is trained to predict the metric resulting from evaluating an instruction-following system on a task while assuming access only to its inputs and outputs at inference time. We perform this analysis with a variety of both open and closed instruction-following models as well as multiple performance predictors, and examine the effect of various factors such as model size, number of training tasks, and prompt format. Our findings indicate that third-party performance prediction is very challenging, and much work remains in developing predictors that can automatically reveal the limitations of modern instruction-following natural language processing systems.

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BibTeX RIS

Rahul Nadkarni, Yizhong Wang, Noah A. Smith. 2024-03-19. Third-Party Language Model Performance Prediction from Instruction. https://arxiv.org/abs/2403.12413

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