This paper presents the formal release of MedMentions, a new manually annotated resource for the recognition of biomedical concepts. What distinguishes MedMentions from other annotated biomedical corpora is its size (over 4,000 abstracts and over 350,000 linked mentions), as well as the size of the concept ontology (over 3 million concepts from UMLS 2017) and its broad coverage of biomedical disciplines. In addition to the full corpus, a sub-corpus of MedMentions is also presented, comprising annotations for a subset of UMLS 2017 targeted towards document retrieval. To encourage research in Biomedical Named Entity Recognition and Linking, data splits for training and testing are included in the release, and a baseline model and its metrics for entity linking are also described.
En-ViMedNER: An English-Vietnamese Parallel Biomedical Corpus with UMLS Semantic Type Annotations
College of Engineering and Computer Science, VinUniversity(VinUniversity工程与计算机科学学院);Faculty of Engineering and IT, University of Technology Sydney(悉尼科技大学工程与信息技术学院);Center for AI Research, VinUniversity(VinUniversity人工智能研究中心);Monash University, Australia(莫纳什大学)
DeepRAG: Integrating Hierarchical Reasoning and Process Supervision for Biomedical Multi-Hop QA
Department of Information Science, University of Pittsburgh(信息科学系,匹兹堡大学);Department of Biomedical Informatics, University of Pittsburgh(生物医学信息学系,匹兹堡大学);Department of Health Information Management and ISP, University of Pittsburgh(健康信息管理与信息科学系,匹兹堡大学)
King’s College London(伦敦国王学院);University College London(伦敦大学学院);NIHR Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and King’s College London(英国国立卫生研究院生物医学研究中心(位于南伦敦和莫兹利 NHS 基金会信托与伦敦国王学院))
电子健康记录(EHR)等生物医学文档包含大量非结构化格式的信息。EHR中的数据是记录临床叙述和决策的非常有价值的资源,但是虽然文本可以很容易地被人类医生理解,但在研究和临床应用中使用却具有挑战性。为了揭示生物医学文档的潜力,我们需要提取和结构化它们所包含的信息。当前的任务是命名实体识别和链接(NER+L)。实体的数量,词语的模糊性,重叠和嵌套使得生物医学领域比许多其他领域更加困难。为了克服这些困难,我们开发了医学概念注释工具(MedCAT),这是NER+L的开源无监督方法。MedCAT使用无监督机器学习来消除实体的歧义。它在MIMIC-III(一个免费访问的重症监护数据库)和MedMentions(由统一医学语言系统注释的生物医学论文)上得到了验证。在NER+L的情况下,与现有工具的比较表明,MedCAT仅通过无监督学习改善了之前的最佳效果(疾病检测的F1=0.848 vs 0.691;一般概念检测的F1=0.710 vs 0.222)。MedCAT学习的向量嵌入的定性分析表明,它捕获了EHR(MIMIC-III)中的潜在医学知识。无监督学习可以提高大规模实体抽取的性能,但在处理少量实体和小数据集时存在一定的局限性。在这种情况下,选项是监督学习或主动学习,两者都通过MedCATtrainer扩展在MedCAT中得到支持。我们的方法可以检测和链接数百万种不同的生物医学概念,具有最先进…
MedPath: Multi-Domain Cross-Vocabulary Hierarchical Paths for Biomedical Entity Linking
Department of Medical Informatics, Amsterdam UMC, University of Amsterdam, The Netherlands(阿姆斯特丹大学医学信息学系,阿姆斯特丹大学医学中心,荷兰);Amsterdam Public Health, Methodology, Amsterdam, The Netherlands(阿姆斯特丹公共卫生,方法学,阿姆斯特丹,荷兰);ILLC, University of Amsterdam, The Netherlands(阿姆斯特丹大学ILLC,荷兰)
Evaluating Biomedical BERT Models for Vocabulary Alignment at Scale in the UMLS Metathesaurus
The Ohio State University(俄亥俄州立大学);National Library of Medicine(美国国家医学图书馆);AI Institute, University of South Carolina(南卡罗来纳大学人工智能研究所);George Washington University(乔治华盛顿大学)
Biomedical Nested NER with Large Language Model and UMLS Heuristics
Georgia Institute of Technology(佐治亚理工学院);Peoples' Friendship University of Russia (RUDN University)(俄罗斯人民友谊大学(RUDN大学));Joint Institute for Nuclear Research(联合核研究所);Vrije Universiteit Amsterdam(阿姆斯特丹自由大学);University of Skövde(舍夫德大学)
The MeSH-gram Neural Network Model: Extending Word Embedding Vectors with MeSH Concepts for UMLS Semantic Similarity and Relatedness in the Biomedical Domain
UBERT: A Novel Language Model for Synonymy Prediction at Scale in the UMLS Metathesaurus
AI Institute, University of South Carolina(南卡罗来纳大学人工智能研究所);National Library of Medicine(美国国家医学图书馆);The Ohio State University(俄亥俄州立大学);George Washington University(乔治华盛顿大学)
Retrofitting Concept Vector Representations of Medical Concepts to Improve Estimates of Semantic Similarity and Relatedness
The University of Texas School of Biomedical Informatics at Houston(德克萨斯大学休斯顿生物医学信息学院);College of Computer and Information Science, Northeastern University(东北大学计算机与信息科学学院)