Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2022 Oct 14;38(20):4837-4839.
doi: 10.1093/bioinformatics/btac598.

BERN2: an advanced neural biomedical named entity recognition and normalization tool

Affiliations

BERN2: an advanced neural biomedical named entity recognition and normalization tool

Mujeen Sung et al. Bioinformatics. .

Abstract

In biomedical natural language processing, named entity recognition (NER) and named entity normalization (NEN) are key tasks that enable the automatic extraction of biomedical entities (e.g. diseases and drugs) from the ever-growing biomedical literature. In this article, we present BERN2 (Advanced Biomedical Entity Recognition and Normalization), a tool that improves the previous neural network-based NER tool by employing a multi-task NER model and neural network-based NEN models to achieve much faster and more accurate inference. We hope that our tool can help annotate large-scale biomedical texts for various tasks such as biomedical knowledge graph construction.

Availability and implementation: Web service of BERN2 is publicly available at http://bern2.korea.ac.kr. We also provide local installation of BERN2 at https://github.com/dmis-lab/BERN2.

Supplementary information: Supplementary data are available at Bioinformatics online.

PubMed Disclaimer

Figures

Fig. 1.
Fig. 1.
An overview of BERN2. Given plain text or a PubMed ID (PMID), BERN2 recognizes nine biomedical entity types and normalizes each concept

References

    1. Doğan R.I. et al. (2014) NCBI disease corpus: a resource for disease name recognition and concept normalization. J. Biomed. Informatics, 47, 1. - PMC - PubMed
    1. Gerner M. et al. (2010) Linnaeus: a species name identification system for biomedical literature. BMC Bioinformatics, 11, 85. - PMC - PubMed
    1. Gu Y. et al. (2022) Domain-specific language model pretraining for biomedical natural language processing. ACM Trans. Comput. Healthcare (HEALTH), 3, 1–23.
    1. Kim D. et al. (2019) A neural named entity recognition and multi-type normalization tool for biomedical text mining. IEEE Access, 7, 73729–73740.
    1. Kim J.-D. et al. (2004) Introduction to the bio-entity recognition task at JNLPBA. In: Proceedings of the 3rd Clinical Natural Language Processing Workshop, Geneva, Switzerland, COLING, pp. 73–78.

Publication types