PersianAnonymizer: Evaluating LLM-Labeled Training for Efficient NER-based Anonymization in Persian
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Computer Science > Computation and Language
arXiv:2609.00958 (cs)
[Submitted on 1 Sep 2026]
Title:PersianAnonymizer: Evaluating LLM-Labeled Training for Efficient NER-based Anonymization in Persian
View a PDF of the paper titled PersianAnonymizer: Evaluating LLM-Labeled Training for Efficient NER-based Anonymization in Persian, by Mohammad Hossein Shalchian and 2 other authors
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Abstract:We target practical anonymization of Persian customer chats by training a compact NER model from LLM-labeled supervision and selecting the best labeler for deployment. We compare three instruction-tuned LLMs: DeepSeek-V3-0324, GPT-OSS-120B, and Qwen3-235B-A22B-Instruct-2507, to produce span annotations under a shared JSON protocol, yielding four corpora (OSS_ZeroShot, Qwen_ZeroShot, Qwen_FewShot, DeepSeek_FewShot). A MatinaRoberta-based token-classifier is trained per corpus and evaluated with token-level Precision/Recall/F1 (overall and per-class). We also report Label Coverage Recall (LCR), the proportion of gold non-O tokens predicted as non-O, and quantify cross-labeler behavior via a token-level Venn on test annotations. Finally, we contrast test-set annotation latency of the LLMs on H200 nodes with the trained NER's test-time labeling on a single RTX 3090. Results show that supervision from OSS_ZeroShot yields the strongest macro-F1 and LCR, while the resulting NER labels an entire 40K-message test set in approximately 2 minutes on one consumer GPU. This establishes a practical path to high-quality, low-cost anonymization for Persian industrial data.
| Comments: | 10 pages, 3 figures, 6 tables. Published at LREC 2026 |
| Subjects: | Computation and Language (cs.CL) |
| Cite as: | arXiv:2609.00958 [cs.CL] |
| (or arXiv:2609.00958v1 [cs.CL] for this version) | |
| https://doi.org/10.48550/arXiv.2609.00958
arXiv-issued DOI via DataCite (pending registration)
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| Journal reference: | Proceedings of the Fifteenth Language Resources and Evaluation Conference (LREC 2026), pages 4497-4506, 11-16 May 2026. ELRA Language Resources Association (ELRA), 2026 |
| Related DOI: | https://doi.org/10.63317/57u2ica9225o
DOI(s) linking to related resources
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Submission history
From: Mohammad Hossein Shalchian [view email][v1] Tue, 1 Sep 2026 09:18:11 UTC (277 KB)
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View a PDF of the paper titled PersianAnonymizer: Evaluating LLM-Labeled Training for Efficient NER-based Anonymization in Persian, by Mohammad Hossein Shalchian and 2 other authors
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