Generalized Tree Edit Distance (GTED): A Faithful Evaluation Metric for Statement Autoformalization

Fuente: arXiv
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Main Authors: Liu, Yuntian, Zhu, Tao, Liu, Xiaoyang, Chen, Yu, Liu, Zhaoxuan, Guo, Qingfeng, Zhang, Jiashuo, Bao, Kangjie, Luo, Tao
Format: Preprint
Published: 2025
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author Liu, Yuntian
Zhu, Tao
Liu, Xiaoyang
Chen, Yu
Liu, Zhaoxuan
Guo, Qingfeng
Zhang, Jiashuo
Bao, Kangjie
Luo, Tao
author_facet Liu, Yuntian
Zhu, Tao
Liu, Xiaoyang
Chen, Yu
Liu, Zhaoxuan
Guo, Qingfeng
Zhang, Jiashuo
Bao, Kangjie
Luo, Tao
contents Statement autoformalization, the automated translation of statements from natural language into formal languages, has become a subject of extensive research, yet the development of robust automated evaluation metrics remains limited. Existing evaluation methods often lack semantic understanding, face challenges with high computational costs, and are constrained by the current progress of automated theorem proving. To address these issues, we propose GTED (Generalized Tree Edit Distance), a novel evaluation framework that first standardizes formal statements and converts them into operator trees, then determines the semantic similarity using the eponymous GTED metric. Across the miniF2F and ProofNet benchmarks, GTED consistently ranks as a top-performing metric, achieving the highest accuracy and Kappa on miniF2F and the joint-highest accuracy on ProofNet. This strong overall performance provides the community with a computationally lightweight and more faithful metric for automated evaluation. The code and experimental results are available at https://github.com/XiaoyangLiu-sjtu/GTED.
format Preprint
id arxiv_https___arxiv_org_abs_2507_07399
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Generalized Tree Edit Distance (GTED): A Faithful Evaluation Metric for Statement Autoformalization
Liu, Yuntian
Zhu, Tao
Liu, Xiaoyang
Chen, Yu
Liu, Zhaoxuan
Guo, Qingfeng
Zhang, Jiashuo
Bao, Kangjie
Luo, Tao
Machine Learning
Artificial Intelligence
Statement autoformalization, the automated translation of statements from natural language into formal languages, has become a subject of extensive research, yet the development of robust automated evaluation metrics remains limited. Existing evaluation methods often lack semantic understanding, face challenges with high computational costs, and are constrained by the current progress of automated theorem proving. To address these issues, we propose GTED (Generalized Tree Edit Distance), a novel evaluation framework that first standardizes formal statements and converts them into operator trees, then determines the semantic similarity using the eponymous GTED metric. Across the miniF2F and ProofNet benchmarks, GTED consistently ranks as a top-performing metric, achieving the highest accuracy and Kappa on miniF2F and the joint-highest accuracy on ProofNet. This strong overall performance provides the community with a computationally lightweight and more faithful metric for automated evaluation. The code and experimental results are available at https://github.com/XiaoyangLiu-sjtu/GTED.
title Generalized Tree Edit Distance (GTED): A Faithful Evaluation Metric for Statement Autoformalization
topic Machine Learning
Artificial Intelligence
url https://arxiv.org/abs/2507.07399