How Much Annotation is Needed to Compare Summarization Models?

Fuente: arXiv
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Auteurs principaux: Shaib, Chantal, Barrow, Joe, Siu, Alexa F., Wallace, Byron C., Nenkova, Ani
Format: Preprint
Publié: 2024
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author Shaib, Chantal
Barrow, Joe
Siu, Alexa F.
Wallace, Byron C.
Nenkova, Ani
author_facet Shaib, Chantal
Barrow, Joe
Siu, Alexa F.
Wallace, Byron C.
Nenkova, Ani
contents Modern instruction-tuned models have become highly capable in text generation tasks such as summarization, and are expected to be released at a steady pace. In practice one may now wish to choose confidently, but with minimal effort, the best performing summarization model when applied to a new domain or purpose. In this work, we empirically investigate the test sample size necessary to select a preferred model in the context of news summarization. Empirical results reveal that comparative evaluation converges quickly for both automatic and human evaluation, with clear preferences for a system emerging from under 100 examples. The human preference data allows us to quantify how well automatic scores can reproduce preference rankings across a variety of downstream summarization tasks. We find that, while automatic metrics are stable at smaller sample sizes, only some automatic metrics are able to moderately predict model win rates according to human preference.
format Preprint
id arxiv_https___arxiv_org_abs_2402_18756
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle How Much Annotation is Needed to Compare Summarization Models?
Shaib, Chantal
Barrow, Joe
Siu, Alexa F.
Wallace, Byron C.
Nenkova, Ani
Computation and Language
Modern instruction-tuned models have become highly capable in text generation tasks such as summarization, and are expected to be released at a steady pace. In practice one may now wish to choose confidently, but with minimal effort, the best performing summarization model when applied to a new domain or purpose. In this work, we empirically investigate the test sample size necessary to select a preferred model in the context of news summarization. Empirical results reveal that comparative evaluation converges quickly for both automatic and human evaluation, with clear preferences for a system emerging from under 100 examples. The human preference data allows us to quantify how well automatic scores can reproduce preference rankings across a variety of downstream summarization tasks. We find that, while automatic metrics are stable at smaller sample sizes, only some automatic metrics are able to moderately predict model win rates according to human preference.
title How Much Annotation is Needed to Compare Summarization Models?
topic Computation and Language
url https://arxiv.org/abs/2402.18756