Label Unification for Cross-Dataset Generalization in Cybersecurity NER

• URL: http://arxiv.org/abs/2507.13870v1
• Date: Fri, 18 Jul 2025 12:47:20 GMT
• Title: Label Unification for Cross-Dataset Generalization in Cybersecurity NER
• Abstract summary: The field of cybersecurity NER lacks standardized labels, making it challenging to combine datasets.<n>We perform a coarse-grained label unification and conduct pairwise cross-dataset evaluations using BiLSTM models.<n>Results show that models trained on unified datasets generalize poorly across datasets.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The field of cybersecurity NER lacks standardized labels, making it challenging to combine datasets. We investigate label unification across four cybersecurity datasets to increase data resource usability. We perform a coarse-grained label unification and conduct pairwise cross-dataset evaluations using BiLSTM models. Qualitative analysis of predictions reveals errors, limitations, and dataset differences. To address unification limitations, we propose alternative architectures including a multihead model and a graph-based transfer model. Results show that models trained on unified datasets generalize poorly across datasets. The multihead model with weight sharing provides only marginal improvements over unified training, while our graph-based transfer model built on BERT-base-NER shows no significant performance gains compared BERT-base-NER.

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