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LLMs can infer L1 backgrounds from L2 English using token probabilities

Researchers have developed a novel method for identifying a non-native English speaker's first language (L1) by analyzing the token probabilities generated by Large Language Models (LLMs). This approach scores text samples based on how likely they are to follow a prompt specifying a candidate L1, with the highest-scoring L1 being the prediction. Experiments using Llama 3.1 8B and 70B models on datasets like TOEFL9 and BULATS-L1 demonstrated that this token probability scoring significantly outperforms previous classification methods, with the larger model achieving state-of-the-art results. AI

IMPACT This research demonstrates LLMs' potential for linguistic analysis beyond text generation, opening avenues for educational tools and language learning applications.

RANK_REASON This is a research paper detailing a novel method for native language identification using LLMs. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.CL →

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LLMs can infer L1 backgrounds from L2 English using token probabilities

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This is a research paper detailing a novel method for native language identification using LLMs. [lever_c_demoted from research: ic=1 ai=1.0]
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COVERAGE [1]

  1. arXiv cs.CL TIER_1 English(EN) · Ahmet Yavuz Uluslu, Mark Gales, Kate Knill, Gerold Schneider ·

    Inferring L1 Backgrounds from L2 English with LLM Token Probabilities

    arXiv:2610.23309v1 Announce Type: new Abstract: Native language identification (NLI) infers a non-native speaker's first language (L1) from their second language (L2) production. We investigate a token probability approach that scores each text sample as a continuation of a promp…