I can tell whether you are a Native Hawl\^eri Speaker! How ANN, CNN, and RNN perform in NLI-Native Language Identification

Hardi Garari; Hossein Hassani

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arXiv · 2602.10832

I can tell whether you are a Native Hawl\^eri Speaker! How ANN, CNN, and RNN perform in NLI-Native Language Identification

Hardi Garari·Hossein Hassani

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Abstract

Native Language Identification (NLI) is a task in Natural Language Processing (NLP) that typically determines the native language of an author through their writing or a speaker through their speaking. It has various applications in different areas, such as forensic linguistics and general linguistics studies. Although considerable research has been conducted on NLI regarding two different languages, such as English and German, the literature indicates a significant gap regarding NLI for dialects and subdialects. The gap becomes wider in less-resourced languages such as Kurdish. This research focuses on NLI within the context of a subdialect of Sorani (Central) Kurdish. It aims to investigate the NLI for Hewl\^eri, a subdialect spoken in Hewl\^er (Erbil), the Capital of the Kurdistan Region of Iraq. We collected about 24 hours of speech by recording interviews with 40 native or non-native Hewl\^eri speakers, 17 female and 23 male. We created three Neural Network-based models: Artificial Neural Network (ANN), Convolutional Neural Network (CNN), and Recurrent Neural Network (RNN), which were evaluated through 66 experiments, covering various time-frames from 1 to 60 seconds, undersampling, oversampling, and cross-validation. The RNN model showed the highest accuracy of 95.92% for 5-second audio segmentation, using an 80:10:10 data splitting scheme. The created dataset is the first speech dataset for NLI on the Hewl\^eri subdialect in the Sorani Kurdish dialect, which can be of benefit to various research areas.

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Hardi Garari, Hossein Hassani. 2026-02-11. I can tell whether you are a Native Hawl\^eri Speaker! How ANN, CNN, and RNN perform in NLI-Native Language Identification. https://arxiv.org/abs/2602.10832

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