为了深入研究我国慢性病医防融合领域的发展趋势和演化过程,本文收集了2006~2024年的373篇相关文献,经过数据清洗和预处理后,引入Word2vec的LDA模型进行文献的主题挖掘,确定每个时期的最佳主题数量,并生成主题演化桑基图。计算不同时间...为了深入研究我国慢性病医防融合领域的发展趋势和演化过程,本文收集了2006~2024年的373篇相关文献,经过数据清洗和预处理后,引入Word2vec的LDA模型进行文献的主题挖掘,确定每个时期的最佳主题数量,并生成主题演化桑基图。计算不同时间段内各主题强度,并通过交互式条形图描述热点主题。结果显示,在第一阶段2006~2020年,大部分研究主要集中在如何整合医疗服务,以及如何将慢性病防控与医防结合;在第二阶段2021~2022年,除了延续既有的主题,部分研究焦点转移到如何更好地管理和融合综合医疗服务,以及如何将公共卫生服务与医疗体系更有效地结合;在第三阶段2023~2024年,研究重点在于如何实现健康服务与医防的深度融合,以及如何在医疗服务中具体落实医防融合的理念,研究更加注重实际操作和具体应用。通过主题演化分析揭示了不同时期内主题之间的关联和演化过程,综合医疗服务、慢性病防控与医防结合等主题在不同阶段都有较强的延续性,而研究重点随着时间的推移逐渐从综合医疗服务向医防融合和健康服务管理方向转移。研究发现,一些主题在不同时期内保持较高的强度,从本研究主题强度图可以看出,在慢性病医防融合领域,社区基层医疗机构在医防融合中具有重要作用,此外2021年及以后的阶段中公共卫生体系建设及医防融合成为研究的共识热点。该研究有助于更全面地理解慢性病医防融合领域的研究动态,为未来的研究方向和政策制定提供有益的参考,同时也为文本分析方法的应用提供了实践示范。未来的研究可以进一步挖掘基层医疗与医防协同机制以及健康服务管理与慢性病防控方面的潜力,更好地帮助社区基层医疗机构服务提供者应对来自人口老龄化社会慢性病高发以及多样化健康需求的挑战,同时也要关注对应的新兴技术如人工智能和大数据分析和对应的数据隐私和伦理挑战,以及政策实施中的风险。In this paper, in order to deeply study the development trend and evolution process in the field of chronic disease medical preventive integration in China, 373 relevant literatures from 2006~2024 were collected, and after data cleaning and pre-processing, the LDA model of Word2vec was introduced in the theme mining of the literature to determine the optimal number of themes in each period and generate the theme evolution Sankey diagram. The intensity of each topic in different time periods is calculated and hot topics are described by interactive bar charts. The results show that in the first period of 2006~2020, most of the studies focused on how to integrate healthcare services and how to combine chronic disease prevention and control with medical prevention;in the second period of 2021~2022, in addition to the continuation of the existing themes, some of the studies shifted their focus to how to better manage and integrate integrated healthcare services and how to combine public health services with the healthcare system more effectively;in the third stage, 2023~2024, the research focused on how to realize the deep integration of health services and medical preventive, and how to implement the concept of medical prevention integration in health care services, and the research focused more on practical operation and specific application. The analysis of theme evolution reveals the connection and evolution process between themes in different periods. The themes of comprehensive medical service, chronic disease prevention and control and medical prevention integration have strong continuity in different stages, while the focus of research gradually shifts from comprehensive medical service to medical prevention integration and health service management over time. It is found that some themes maintain a high intensity in different periods, and the intensity map of the themes in this study shows that in the field of chronic disease medical prevention integration, community-based primary healthcare organizations have an important role in medical prevention integration, and in addition, public health system construction and medical prevention integration have become consensus hotspots in research in the stage of 2021 and beyond. This study contributes to a more comprehensive understanding of the research dynamics in the field of chronic disease medical prevention integration, provides useful references for future research directions and policy formulation, and also provides a practical demonstration of the application of text analysis methods. Future research can further explore the potential of primary care and medical prevention synergistic mechanisms as well as health service management and chronic disease prevention and control to better help community-based primary care providers to cope with the challenges from the high prevalence of chronic diseases and diversified health needs of an aging population, as well as to pay attention to the corresponding emerging technologies such as artificial intelligence and big data analytics and the corresponding data privacy and ethical challenges, and the risks in policy implementation.展开更多
为了对饮食文本信息高效分类,建立一种基于word2vec和长短期记忆网络(Long-short term memory,LSTM)的分类模型。针对食物百科和饮食健康文本特点,首先利用word2vec实现包含语义信息的词向量表示,并解决了传统方法导致数据表示稀疏及维...为了对饮食文本信息高效分类,建立一种基于word2vec和长短期记忆网络(Long-short term memory,LSTM)的分类模型。针对食物百科和饮食健康文本特点,首先利用word2vec实现包含语义信息的词向量表示,并解决了传统方法导致数据表示稀疏及维度灾难问题,基于K-means++根据语义关系聚类以提高训练数据质量。由word2vec构建文本向量作为LSTM的初始输入,训练LSTM分类模型,自动提取特征,进行饮食宜、忌的文本分类。实验采用48 000个文档进行测试,结果显示,分类准确率为98.08%,高于利用tf-idf、bag-of-words等文本数值化表示方法以及基于支持向量机(Support vector machine,SVM)和卷积神经网络(Convolutional neural network,CNN)分类算法结果。实验结果表明,利用该方法能够高质量地对饮食文本自动分类,帮助人们有效地利用健康饮食信息。展开更多
词性是自然语言处理的基本要素,词语顺序包含了所传达的语义与语法信息,它们都是自然语言中的关键信息.在word embedding模型中如何有效地将两者结合起来,是目前研究的重点.本文提出的Structured word2vec on POS联合了词语顺序与词性...词性是自然语言处理的基本要素,词语顺序包含了所传达的语义与语法信息,它们都是自然语言中的关键信息.在word embedding模型中如何有效地将两者结合起来,是目前研究的重点.本文提出的Structured word2vec on POS联合了词语顺序与词性两种信息,不仅使模型可以感知词语位置顺序,而且利用词性关联信息来建立上下文窗口内词语之间的固有句法关系.Structured word2vec on POS将词语按其位置顺序定向嵌入,对词向量和词性相关加权矩阵进行联合优化.实验通过词语类比、词相似性任务,证明了所提出的方法的有效性.展开更多
文摘为了深入研究我国慢性病医防融合领域的发展趋势和演化过程,本文收集了2006~2024年的373篇相关文献,经过数据清洗和预处理后,引入Word2vec的LDA模型进行文献的主题挖掘,确定每个时期的最佳主题数量,并生成主题演化桑基图。计算不同时间段内各主题强度,并通过交互式条形图描述热点主题。结果显示,在第一阶段2006~2020年,大部分研究主要集中在如何整合医疗服务,以及如何将慢性病防控与医防结合;在第二阶段2021~2022年,除了延续既有的主题,部分研究焦点转移到如何更好地管理和融合综合医疗服务,以及如何将公共卫生服务与医疗体系更有效地结合;在第三阶段2023~2024年,研究重点在于如何实现健康服务与医防的深度融合,以及如何在医疗服务中具体落实医防融合的理念,研究更加注重实际操作和具体应用。通过主题演化分析揭示了不同时期内主题之间的关联和演化过程,综合医疗服务、慢性病防控与医防结合等主题在不同阶段都有较强的延续性,而研究重点随着时间的推移逐渐从综合医疗服务向医防融合和健康服务管理方向转移。研究发现,一些主题在不同时期内保持较高的强度,从本研究主题强度图可以看出,在慢性病医防融合领域,社区基层医疗机构在医防融合中具有重要作用,此外2021年及以后的阶段中公共卫生体系建设及医防融合成为研究的共识热点。该研究有助于更全面地理解慢性病医防融合领域的研究动态,为未来的研究方向和政策制定提供有益的参考,同时也为文本分析方法的应用提供了实践示范。未来的研究可以进一步挖掘基层医疗与医防协同机制以及健康服务管理与慢性病防控方面的潜力,更好地帮助社区基层医疗机构服务提供者应对来自人口老龄化社会慢性病高发以及多样化健康需求的挑战,同时也要关注对应的新兴技术如人工智能和大数据分析和对应的数据隐私和伦理挑战,以及政策实施中的风险。In this paper, in order to deeply study the development trend and evolution process in the field of chronic disease medical preventive integration in China, 373 relevant literatures from 2006~2024 were collected, and after data cleaning and pre-processing, the LDA model of Word2vec was introduced in the theme mining of the literature to determine the optimal number of themes in each period and generate the theme evolution Sankey diagram. The intensity of each topic in different time periods is calculated and hot topics are described by interactive bar charts. The results show that in the first period of 2006~2020, most of the studies focused on how to integrate healthcare services and how to combine chronic disease prevention and control with medical prevention;in the second period of 2021~2022, in addition to the continuation of the existing themes, some of the studies shifted their focus to how to better manage and integrate integrated healthcare services and how to combine public health services with the healthcare system more effectively;in the third stage, 2023~2024, the research focused on how to realize the deep integration of health services and medical preventive, and how to implement the concept of medical prevention integration in health care services, and the research focused more on practical operation and specific application. The analysis of theme evolution reveals the connection and evolution process between themes in different periods. The themes of comprehensive medical service, chronic disease prevention and control and medical prevention integration have strong continuity in different stages, while the focus of research gradually shifts from comprehensive medical service to medical prevention integration and health service management over time. It is found that some themes maintain a high intensity in different periods, and the intensity map of the themes in this study shows that in the field of chronic disease medical prevention integration, community-based primary healthcare organizations have an important role in medical prevention integration, and in addition, public health system construction and medical prevention integration have become consensus hotspots in research in the stage of 2021 and beyond. This study contributes to a more comprehensive understanding of the research dynamics in the field of chronic disease medical prevention integration, provides useful references for future research directions and policy formulation, and also provides a practical demonstration of the application of text analysis methods. Future research can further explore the potential of primary care and medical prevention synergistic mechanisms as well as health service management and chronic disease prevention and control to better help community-based primary care providers to cope with the challenges from the high prevalence of chronic diseases and diversified health needs of an aging population, as well as to pay attention to the corresponding emerging technologies such as artificial intelligence and big data analytics and the corresponding data privacy and ethical challenges, and the risks in policy implementation.
文摘词性是自然语言处理的基本要素,词语顺序包含了所传达的语义与语法信息,它们都是自然语言中的关键信息.在word embedding模型中如何有效地将两者结合起来,是目前研究的重点.本文提出的Structured word2vec on POS联合了词语顺序与词性两种信息,不仅使模型可以感知词语位置顺序,而且利用词性关联信息来建立上下文窗口内词语之间的固有句法关系.Structured word2vec on POS将词语按其位置顺序定向嵌入,对词向量和词性相关加权矩阵进行联合优化.实验通过词语类比、词相似性任务,证明了所提出的方法的有效性.
