Article(id=1149776907639681095, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149776900194791454, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2403519, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1715529600000, receivedDateStr=2024-05-13, revisedDate=1722441600000, revisedDateStr=2024-08-01, acceptedDate=null, acceptedDateStr=null, onlineDate=1752057776603, onlineDateStr=2025-07-09, pubDate=1744905600000, pubDateStr=2025-04-18, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752057776603, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752057776603, creator=13701087609, updateTime=1752057776603, updator=13701087609, issue=Issue{id=1149776900194791454, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='11', pageStart='4397', pageEnd='4826', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1752057774827, creator=13701087609, updateTime=1768456666677, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1218558837930512931, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149776900194791454, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1218558837930512932, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149776900194791454, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=4656, endPage=4665, ext={EN=ArticleExt(id=1149776907941670985, articleId=1149776907639681095, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Named Entity Recognition for Chinese Electronic Medical Records Using MacBERT and Global Pointer Network, columnId=1156262729162810294, journalTitle=Science Technology and Engineering, columnName=Papers·Automation and Computational Technology, runingTitle=null, highlight=null, articleAbstract=
Addressing the limitation of existing sequence labeling approaches in effectively recognizing nested entities within Chinese electronic health records (EHRs), a novel named entity recognition model that integrates MacBERT and a global pointer network was proposed. Initially, the MacBERT-large pre-trained model transformed the text into context-sensitive dynamic vectors. Subsequently, the fast gradient method (FGM) was employed to generate adversarial samples, which were incorporated into the original vectors and fed into a BiLSTM (bi-directional long short-term memory) network to capture contextual features. To enhance the capture of long-distance semantic features, an attention mechanism was introduced. Finally, a global pointer network model was leveraged to decode simultaneously considering both head and tail feature information, thereby achieving superior prediction performance for medical nested entities. Experimental results demonstrate that compared to the state-of-the-art global pointer model, the proposed model achieves an improvement of 1.8%, 1.37%, and 1.72% in F1-score on the CCKS2019 dataset and two versions of the CMeEE Chinese EHR dataset, respectively, validating the effectiveness of the proposed approach.
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针对现有序列标注方法不能有效解决中文电子病历嵌套实体识别问题,提出一种基于MacBERT与全局指针网络的中文电子病历命名实体识别模型。首先通过MacBERT-large预训练模型将文本转换为结合语境信息的动态向量,然后使用FGM (fast gradient method)方法生成对抗样本添加至原有向量并一同输入BiLSTM (bi-directional long short-term memory)网络获取上下文特征,并通过引入注意力机制增强长距离语义特征获取,最后利用全局指针网络模型同时考虑头部和尾部的特征信息进行解码以获得更好的医学嵌套实体预测效果。实验结果表明,本文模型相较于识别效果较好的主流模型全局指针网络模型在CCKS2019以及两个版本的CMeEE中文电子病历数据集上F1分别提高了1.8%、1.37%、1.72%,证明了模型的有效性。
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吴天宇(2000—),男,汉族,北京丰台人,硕士研究生。研究方向:知识图谱。E-mail:767101839@qq.com。
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吴天宇(2000—),男,汉族,北京丰台人,硕士研究生。研究方向:知识图谱。E-mail:767101839@qq.com。
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Artificial Intelligence,
2022,
36(10): 10965-10973., articleTitle=Unified named entity recognition as word-word relation classification, refAbstract=null)], funds=[Fund(id=1218843909929750559, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, awardId=2021YFB2600600, language=CN, fundingSource=国家重点研发计划(2021YFB2600600), fundOrder=null, country=null), Fund(id=1218843910030413864, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, awardId=2023XJJ15, language=CN, fundingSource=北京信息科技大学校级科研项目(2023XJJ15), fundOrder=null, country=null), Fund(id=1218843910214963253, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, awardId=2023XJJ17, language=CN, fundingSource=北京信息科技大学校级科研项目(2023XJJ17), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1218843903235641793, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, xref=null, ext=[AuthorCompanyExt(id=1218843903244030401, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, companyId=1218843903235641793, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Computer School, Beijing Information Science and Technology University, Beijing 100101, China), AuthorCompanyExt(id=1218843903256613315, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, companyId=1218843903235641793, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=北京信息科技大学计算机学院, 北京 100101)])], figs=[ArticleFig(id=1218843906536559349, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=EN, label=Fig.1, caption=
Structure diagram of Chinese electronic medical record named entity recognition model based on MacBERT and global pointer network, figureFileSmall=3TY3o2wfUPuln2yddhibtw==, figureFileBig=dYjo2NfzI9n37ZMpWT/X+g==, tableContent=null), ArticleFig(id=1218843906796606213, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=CN, label=图1, caption=
基于MacBERT与全局指针网络的中文电子病历命名实体识别模型结构图, figureFileSmall=3TY3o2wfUPuln2yddhibtw==, figureFileBig=dYjo2NfzI9n37ZMpWT/X+g==, tableContent=null), ArticleFig(id=1218843906943406863, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=EN, label=Fig.2, caption=
Comparison chart of different mask strategies, figureFileSmall=sGKicRHA6bxsGXgWr4gktA==, figureFileBig=951mhJtf2FrDAaSKQh/9nw==, tableContent=null), ArticleFig(id=1218843907052458776, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=CN, label=图2, caption=
不同掩码策略对比图, figureFileSmall=sGKicRHA6bxsGXgWr4gktA==, figureFileBig=951mhJtf2FrDAaSKQh/9nw==, tableContent=null), ArticleFig(id=1218843907232813861, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=EN, label=Fig.3, caption=
MacBERT input example diagram, figureFileSmall=wQZbDzvss9nfW56lciRkng==, figureFileBig=FtIbMqi8F5nA/9t9zM2sKw==, tableContent=null), ArticleFig(id=1218843907383808814, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=CN, label=图3, caption=
MacBERT输入示例图, figureFileSmall=wQZbDzvss9nfW56lciRkng==, figureFileBig=FtIbMqi8F5nA/9t9zM2sKw==, tableContent=null), ArticleFig(id=1218843907463500599, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=EN, label=Fig.4, caption=
LSTM unit structure diagram, figureFileSmall=YrHznsu4XURL8yBD+H2DNA==, figureFileBig=PunPq8rIgWrSzEf/aXhnxg==, tableContent=null), ArticleFig(id=1218843907572552517, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=CN, label=图4, caption=
LSTM单元结构图, figureFileSmall=YrHznsu4XURL8yBD+H2DNA==, figureFileBig=PunPq8rIgWrSzEf/aXhnxg==, tableContent=null), ArticleFig(id=1218843907719353172, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=EN, label=Table 1, caption=
Introduction to dataset distribution
, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据集名称 | 实体类型 | 训练集 | 验证集 | 测试集 | 评价指标 |
| CCKS2019 | 解剖部位、手术、疾病和诊断、药物、实验室检验、影像检查 | 1 000 | 200 | 179 | F1 |
| CMeEE | 疾病名称、临床表现、医疗程序、医疗设备、药物名称、医学检验项目、身体部位、科室微生物类 | 15 000 | 5 000 | 3 000 | F1 |
| CMeEE-V2 | 疾病名称、临床表现、医疗程序、医疗设备、药物名称、医学检验项目、身体部位、科室微生物类 | 15 000 | 5 000 | 3 000 | F1 |
), ArticleFig(id=1218843907849376604, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=CN, label=表1, caption=
数据集分布情况介绍
, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据集名称 | 实体类型 | 训练集 | 验证集 | 测试集 | 评价指标 |
| CCKS2019 | 解剖部位、手术、疾病和诊断、药物、实验室检验、影像检查 | 1 000 | 200 | 179 | F1 |
| CMeEE | 疾病名称、临床表现、医疗程序、医疗设备、药物名称、医学检验项目、身体部位、科室微生物类 | 15 000 | 5 000 | 3 000 | F1 |
| CMeEE-V2 | 疾病名称、临床表现、医疗程序、医疗设备、药物名称、医学检验项目、身体部位、科室微生物类 | 15 000 | 5 000 | 3 000 | F1 |
), ArticleFig(id=1218843907950039909, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=EN, label=Table 2, caption=
Experimental environment setting table
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| 实验环境名称 | 配置 |
| 操作系统 | Windows10 |
| 编程语言 | Python3.8 |
| 深度学习框架 | Pytorch1.9.0 |
| GPU | RTX 3090 |
), ArticleFig(id=1218843908075869041, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=CN, label=表2, caption=
实验环境设置表
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| 实验环境名称 | 配置 |
| 操作系统 | Windows10 |
| 编程语言 | Python3.8 |
| 深度学习框架 | Pytorch1.9.0 |
| GPU | RTX 3090 |
), ArticleFig(id=1218843908201698175, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=EN, label=Table 3, caption=
Experimental parameter setting table
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| 参数名称 | 参数值 |
| epoch | 10 |
| 学习率 | 2×10-5 |
| LSTM隐层维度 | 512 |
| dropout | 0.1 |
| 优化器 | Adam |
| batch_size | 16 |
| 最大序列长度 | 256 |
), ArticleFig(id=1218843908340110222, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=CN, label=表3, caption=
实验参数设置表
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数名称 | 参数值 |
| epoch | 10 |
| 学习率 | 2×10-5 |
| LSTM隐层维度 | 512 |
| dropout | 0.1 |
| 优化器 | Adam |
| batch_size | 16 |
| 最大序列长度 | 256 |
), ArticleFig(id=1218843908478522270, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=EN, label=Table 4, caption=
Comparison experiment of decoding methods
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 模型 | F1/% |
| CCKS2019 | CMeEE |
| 1 | CRF | 80.14 | 65.09 |
| 2 | Global Pointer | 80.47 | 66.21 |
), ArticleFig(id=1218843908608545703, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=CN, label=表4, caption=
解码方法对比实验
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 模型 | F1/% |
| CCKS2019 | CMeEE |
| 1 | CRF | 80.14 | 65.09 |
| 2 | Global Pointer | 80.47 | 66.21 |
), ArticleFig(id=1218843908767929271, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=EN, label=Table 5, caption=
Examples of recognition results using different decoding methods
, figureFileSmall=null, figureFileBig=null, tableContent=
| 文本 | CRF | Global Pointer | 真实结果 |
| 患者3月余前于我院诊断为直肠癌 | 直肠癌(疾病和诊断) | 直肠癌(疾病和诊断) | 直肠癌(疾病和诊断) |
| 显微镜下见神经细胞空泡形成 | 显微镜(医疗设备) 神经细胞空泡(临床表现) | 显微镜(医疗设备) 神经细胞(身体物质) 神经细胞空泡(临床表现) | 显微镜(医疗设备) 神经细胞(身体物质) 神经细胞空泡(临床表现) |
), ArticleFig(id=1218843908902147010, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=CN, label=表5, caption=
不同解码方法识别结果示例
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| 文本 | CRF | Global Pointer | 真实结果 |
| 患者3月余前于我院诊断为直肠癌 | 直肠癌(疾病和诊断) | 直肠癌(疾病和诊断) | 直肠癌(疾病和诊断) |
| 显微镜下见神经细胞空泡形成 | 显微镜(医疗设备) 神经细胞空泡(临床表现) | 显微镜(医疗设备) 神经细胞(身体物质) 神经细胞空泡(临床表现) | 显微镜(医疗设备) 神经细胞(身体物质) 神经细胞空泡(临床表现) |
), ArticleFig(id=1218843909044753355, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=EN, label=Table 6, caption=
Comparison of pre trained models
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| 序号 | 模型 | F1/% |
| 1 | BERT | 73.44 |
| 2 | RoBERTa | 73.66 |
| 3 | RoBERTa-wwm-ext | 73.75 |
| 4 | MacBERT | 73.86 |
| 5 | RoBERTa-wwm-ext-large | 74.69 |
| 6 | MacBERT-large(MABAGP) | 74.84 |
), ArticleFig(id=1218843909187359700, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=CN, label=表6, caption=
预训练模型对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 模型 | F1/% |
| 1 | BERT | 73.44 |
| 2 | RoBERTa | 73.66 |
| 3 | RoBERTa-wwm-ext | 73.75 |
| 4 | MacBERT | 73.86 |
| 5 | RoBERTa-wwm-ext-large | 74.69 |
| 6 | MacBERT-large(MABAGP) | 74.84 |
), ArticleFig(id=1218843909308994529, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=EN, label=Table 7, caption=
Comparison experiment with mainstream models
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| 序号 | 模型 | F1/% |
| CCKS2019 | CMeEE | CMeEE-V2 |
| 1 | BiLSTM+CRF | 75.14 | 59.32 | 66.46 |
| 2 | BERT-BiLSTM-CRF | 78.40 | 63.80 | 69.92 |
| 3 | Deep Biaffine[23] | 78.51 | 63.89 | 71.57 |
| 4 | W2NER[24] | 77.83 | 63.91 | 70.49 |
| 5 | Global Pointer[19] | 78.67 | 64.84 | 73.12 |
| 6 | MABAGP(本文方法) | 80.47 | 66.21 | 74.84 |
), ArticleFig(id=1218843909451600880, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=CN, label=表7, caption=
与主流模型对比实验
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 模型 | F1/% |
| CCKS2019 | CMeEE | CMeEE-V2 |
| 1 | BiLSTM+CRF | 75.14 | 59.32 | 66.46 |
| 2 | BERT-BiLSTM-CRF | 78.40 | 63.80 | 69.92 |
| 3 | Deep Biaffine[23] | 78.51 | 63.89 | 71.57 |
| 4 | W2NER[24] | 77.83 | 63.91 | 70.49 |
| 5 | Global Pointer[19] | 78.67 | 64.84 | 73.12 |
| 6 | MABAGP(本文方法) | 80.47 | 66.21 | 74.84 |
), ArticleFig(id=1218843909569041401, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=EN, label=Table 8, caption=
Ablation experiment
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| 序号 | 模型 | F1/% |
| 1 | Baseline | 79.88 |
| 2 | Baseline+AT | 80.28 |
| 3 | Baseline+Attention | 80.32 |
| 4 | Baseline+AT+Attention | 80.47 |
), ArticleFig(id=1218843909703258115, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776907639681095, language=CN, label=表8, caption=
消融实验
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 模型 | F1/% |
| 1 | Baseline | 79.88 |
| 2 | Baseline+AT | 80.28 |
| 3 | Baseline+Attention | 80.32 |
| 4 | Baseline+AT+Attention | 80.47 |
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