ResearchResearch paperLarge Language Models1 source · Oct 16, 2026

Multi-author style detection with stylistic embeddings

We investigate the use of Large Language Models (LLMs) in multi-author style change detection.

Key points

  • Using off-the-shelf LLMs or supervised fine-tuning solely within the target domain fails to yield effective features; for this reason, we propose cross-domain transfer learning with LLM-based embeddings fine-tuned for authorship verification.
  • We fine-tune Mistral-7B embedding model and compare it with DeBERTa, used in the state-of-the-art (SOTA) systems in PAN-25 multi-author writing style analysis challenge.
  • Results show that DeBERTa and Mistral excel in different user-generated text scenarios.
  • We exploit this diversity by combining both embeddings, leading to more effective style change detection.

Sources (1)

  • [1]Multi-author style detection with stylistic embeddings
    arXiv (AI, ML, NLP, CV, robotics, multi-agent) · Oct 16, 08:01 PM
    We investigate the use of Large Language Models (LLMs) in multi-author style change detection.
    Using off-the-shelf LLMs or supervised fine-tuning solely within the target domain fails to yield effective features; for this reason, we propose cross-domain transfer learning with LLM-based embeddings fine-tuned for authorship verification.

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