The Role of Natural Language Processing Tasks in Automatic Literary Character Network Construction

• URL: http://arxiv.org/abs/2412.11560v1
• Date: Mon, 16 Dec 2024 08:46:53 GMT
• Title: The Role of Natural Language Processing Tasks in Automatic Literary Character Network Construction
• Authors: Arthur Amalvy, Vincent Labatut, Richard Dufour,
• Abstract summary: This article focuses on the role of named entity recognition (NER) and coreference resolution when extracting co-occurrence networks. We demonstrate that NER performance depends on the tested novel and strongly affects character detection. We also show that NER-detected mentions alone miss a lot of character co-occurrences, and that coreference resolution is needed to prevent this.
• Score: 6.633914491587503
• License:
• Abstract: The automatic extraction of character networks from literary texts is generally carried out using natural language processing (NLP) cascading pipelines. While this approach is widespread, no study exists on the impact of low-level NLP tasks on their performance. In this article, we conduct such a study on a literary dataset, focusing on the role of named entity recognition (NER) and coreference resolution when extracting co-occurrence networks. To highlight the impact of these tasks' performance, we start with gold-standard annotations, progressively add uniformly distributed errors, and observe their impact in terms of character network quality. We demonstrate that NER performance depends on the tested novel and strongly affects character detection. We also show that NER-detected mentions alone miss a lot of character co-occurrences, and that coreference resolution is needed to prevent this. Finally, we present comparison points with 2 methods based on large language models (LLMs), including a fully end-to-end one, and show that these models are outperformed by traditional NLP pipelines in terms of recall.

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