arXiv Computation and Language By Jordan Lee, Filippos Ventirozos, Abdirahman Abdullahm, Ioanna Nteka, Peter Appleby, Matthew Shardlow

AutoSpecNER: A Fine-Grained Named Entity Recognition Dataset for Vehicle Specification Extraction

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AutoSpecNER is a new expert‑annotated dataset for fine‑grained named entity recognition in vehicle listings, comprising 659 advertisements and over 10,000 entities across 15 categories such as MODEL, ENGINE_SPEC, and BATTERY_CAPACITY. The annotation quality was validated with an inter‑annotator agreement score of 91.5%. Benchmarking shows that DeBERTa achieves a 90% micro‑F1, far surpassing a rule‑based baseline (43%) and the best large language model (77.8%).

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arXiv Computation and Language
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Error-Type-Aware Loss Reweighting for Robust Named Entity Recognition with Noisy LLM Labels

Large language models (LLMs) are increasingly used to annotate datasets for training smaller, task‑specialized models such as named entity recognition (NER). However, current fine‑tuning processes ignore the annotation noise introduced by LLMs, leading to degraded performance, and existing noise‑robust losses fail to handle the heterogeneous nature of NER noise (e.g., missing mentions vs. type errors). The authors propose error‑type‑aware loss reweighting, which applies separate reweighting rules for different erroneous token types, improving F1 scores by 0.8–2.0 percentage points on average and up to 4.6 points on Wikigold at 24.1% noise.

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