Looking for the Inner Music: Probing LLMs' Understanding of Literary Style

Fuente: arXiv
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Main Authors: Hicke, Rebecca M. M., Mimno, David
Format: Preprint
Published: 2025
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author Hicke, Rebecca M. M.
Mimno, David
author_facet Hicke, Rebecca M. M.
Mimno, David
contents Recent work has demonstrated that language models can be trained to identify the author of much shorter literary passages than has been thought feasible for traditional stylometry. We replicate these results for authorship and extend them to a new dataset measuring novel genre. We find that LLMs are able to distinguish authorship and genre, but they do so in different ways. Some models seem to rely more on memorization, while others benefit more from training to learn author/genre characteristics. We then use three methods to probe one high-performing LLM for features that define style. These include direct syntactic ablations to input text as well as two methods that look at model internals. We find that authorial style is easier to define than genre-level style and is more impacted by minor syntactic decisions and contextual word usage. However, some traits like pronoun usage and word order prove significant for defining both kinds of literary style.
format Preprint
id arxiv_https___arxiv_org_abs_2502_03647
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Looking for the Inner Music: Probing LLMs' Understanding of Literary Style
Hicke, Rebecca M. M.
Mimno, David
Computation and Language
Machine Learning
Recent work has demonstrated that language models can be trained to identify the author of much shorter literary passages than has been thought feasible for traditional stylometry. We replicate these results for authorship and extend them to a new dataset measuring novel genre. We find that LLMs are able to distinguish authorship and genre, but they do so in different ways. Some models seem to rely more on memorization, while others benefit more from training to learn author/genre characteristics. We then use three methods to probe one high-performing LLM for features that define style. These include direct syntactic ablations to input text as well as two methods that look at model internals. We find that authorial style is easier to define than genre-level style and is more impacted by minor syntactic decisions and contextual word usage. However, some traits like pronoun usage and word order prove significant for defining both kinds of literary style.
title Looking for the Inner Music: Probing LLMs' Understanding of Literary Style
topic Computation and Language
Machine Learning
url https://arxiv.org/abs/2502.03647