RILEC: Detection and Generation of L1 Russian Interference Errors in English Learner Texts

Darya Kharlamova; Irina Proskurina

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arXiv · 2603.07366

RILEC: Detection and Generation of L1 Russian Interference Errors in English Learner Texts

Darya Kharlamova·Irina Proskurina

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Abstract

Many errors in student essays can be explained by influence from the native language (L1). L1 interference refers to errors influenced by a speaker's first language, such as using stadion instead of stadium, reflecting lexical transliteration from Russian. In this work, we address the task of detecting such errors in English essays written by Russian-speaking learners. We introduce RILEC, a large-scale dataset of over 18,000 sentences, combining expert-annotated data from REALEC with synthetic examples generated through rule-based and neural augmentation. We propose a framework for generating L1-motivated errors using generative language models optimized with PPO, prompt-based control, and rule-based patterns. Models fine-tuned on RILEC achieve strong performance, particularly on word-level interference types such as transliteration and tense semantics. We find that the proposed augmentation pipeline leads to a significant performance improvement, making it a potentially valuable tool for learners and teachers to more effectively identify and address such errors.

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Darya Kharlamova, Irina Proskurina. 2026-03-07. RILEC: Detection and Generation of L1 Russian Interference Errors in English Learner Texts. https://arxiv.org/abs/2603.07366

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