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This study aims to assess the performance of different feature sets in an authorship attribution test using a large corpus of 76 contemporary Italian popular mystery novels by 16 authors. The feature sets include the dimensions derived from a large language model, the most frequent words, and the coordinates of correspondence analysis. Our analysis compares and contrasts the results obtained through these different vector representations in machine learning classification tasks. Although transformers have been shown to outperform other alternatives in previous works, in this case, correspondence analysis proves to be the winner of the challenge. The results support the hypothesis that specialized large corpora require tailor-made representations.

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Competing Sets of Predictors in an Authorship Attribution Task: Most Frequent Words, Large Language Models and Correspondence Analysis

  • 会议论文

  • 发表日期：

    2025年

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  • Andrea Sciandra,
  • Arjuna Tuzzi

摘要

This study aims to assess the performance of different feature sets in an authorship attribution test using a large corpus of 76 contemporary Italian popular mystery novels by 16 authors. The feature sets include the dimensions derived from a large language model, the most frequent words, and the coordinates of correspondence analysis. Our analysis compares and contrasts the results obtained through these different vector representations in machine learning classification tasks. Although transformers have been shown to outperform other alternatives in previous works, in this case, correspondence analysis proves to be the winner of the challenge. The results support the hypothesis that specialized large corpora require tailor-made representations.