Statistical Multicriteria Evaluation of LLM-Generated Text

Fuente: arXiv
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Auteurs principaux: Arias, Esteban Garces, Blocher, Hannah, Rodemann, Julian, Aßenmacher, Matthias, Jansen, Christoph
Format: Preprint
Publié: 2025
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author Arias, Esteban Garces
Blocher, Hannah
Rodemann, Julian
Aßenmacher, Matthias
Jansen, Christoph
author_facet Arias, Esteban Garces
Blocher, Hannah
Rodemann, Julian
Aßenmacher, Matthias
Jansen, Christoph
contents Assessing the quality of LLM-generated text remains a fundamental challenge in natural language processing. Current evaluation approaches often rely on isolated metrics or simplistic aggregations that fail to capture the nuanced trade-offs between coherence, diversity, fluency, and other relevant indicators of text quality. In this work, we adapt a recently proposed framework for statistical inference based on Generalized Stochastic Dominance (GSD) that addresses three critical limitations in existing benchmarking methodologies: the inadequacy of single-metric evaluation, the incompatibility between cardinal automatic metrics and ordinal human judgments, and the lack of inferential statistical guarantees. The GSD-front approach enables simultaneous evaluation across multiple quality dimensions while respecting their different measurement scales, building upon partial orders of decoding strategies, thus avoiding arbitrary weighting of the involved metrics. By applying this framework to evaluate common decoding strategies against human-generated text, we demonstrate its ability to identify statistically significant performance differences while accounting for potential deviations from the i.i.d. assumption of the sampling design.
format Preprint
id arxiv_https___arxiv_org_abs_2506_18082
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Statistical Multicriteria Evaluation of LLM-Generated Text
Arias, Esteban Garces
Blocher, Hannah
Rodemann, Julian
Aßenmacher, Matthias
Jansen, Christoph
Computation and Language
Applications
Assessing the quality of LLM-generated text remains a fundamental challenge in natural language processing. Current evaluation approaches often rely on isolated metrics or simplistic aggregations that fail to capture the nuanced trade-offs between coherence, diversity, fluency, and other relevant indicators of text quality. In this work, we adapt a recently proposed framework for statistical inference based on Generalized Stochastic Dominance (GSD) that addresses three critical limitations in existing benchmarking methodologies: the inadequacy of single-metric evaluation, the incompatibility between cardinal automatic metrics and ordinal human judgments, and the lack of inferential statistical guarantees. The GSD-front approach enables simultaneous evaluation across multiple quality dimensions while respecting their different measurement scales, building upon partial orders of decoding strategies, thus avoiding arbitrary weighting of the involved metrics. By applying this framework to evaluate common decoding strategies against human-generated text, we demonstrate its ability to identify statistically significant performance differences while accounting for potential deviations from the i.i.d. assumption of the sampling design.
title Statistical Multicriteria Evaluation of LLM-Generated Text
topic Computation and Language
Applications
url https://arxiv.org/abs/2506.18082