COLING 2025main0 citations

On Evaluating LLMs’ Capabilities as Functional Approximators: A Bayesian Evaluation Framework

Shoaib Ahmed Siddiqui, Yanzhi Chen, Juyeon Heo, Menglin Xia, Adrian Weller

Abstract

Recent works have successfully applied Large Language Models (LLMs) to function modeling tasks. However, the reasons behind this success remain unclear. In this work, we propose a new evaluation framework to comprehensively assess LLMs’ function modeling abilities. By adopting a Bayesian perspective of function modeling, we discover that LLMs are relatively weak in understanding patterns in raw data, but excel at utilizing prior knowledge about the domain to develop a strong understanding of the underlying function. Our findings offer new insights about the strengths and limitations of LLMs in the context of function modeling.

BibTeX
@inproceedings{siddiqui-etal-2025-evaluating,
    title = "On Evaluating {LLM}s' Capabilities as Functional Approximators: A {B}ayesian Evaluation Framework",
    author = "Siddiqui, Shoaib Ahmed  and
      Chen, Yanzhi  and
      Heo, Juyeon  and
      Xia, Menglin  and
      Weller, Adrian",
    editor = "Rambow, Owen  and
      Wanner, Leo  and
      Apidianaki, Marianna  and
      Al-Khalifa, Hend  and
      Eugenio, Barbara Di  and
      Schockaert, Steven",
    booktitle = "Proceedings of the 31st International Conference on Computational Linguistics",
    month = jan,
    year = "2025",
    address = "Abu Dhabi, UAE",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/2025.coling-main.388/",
    pages = "5826--5835"
}
On Evaluating LLMs’ Capabilities as Functional Approximators: A Bayesian Evaluation Framework · COLING 2025