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技术成熟度评价数据标准化及数据库构建方法研究
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作者 杨雪鹤 杨颖坤 莫冰 《电子质量》 2024年第3期121-128,共8页
技术成熟度评价在科技项目管理工作中得到越来越深入的应用,然而,当前评价工作依赖于大量评价信息的人工评审和分析,缺乏评价数据的标准化处理及存储,导致评价效率较低,且难以开展相关机器学习辅助评价模型的开发。基于项目技术成熟度... 技术成熟度评价在科技项目管理工作中得到越来越深入的应用,然而,当前评价工作依赖于大量评价信息的人工评审和分析,缺乏评价数据的标准化处理及存储,导致评价效率较低,且难以开展相关机器学习辅助评价模型的开发。基于项目技术成熟度评价原始数据,开展数据内容共性分析,提出了一种基于Vision Transformer框架的数据处理方法,并设计了一种新的数据结构,实现技术成熟度评价数据的标准化及标准化数据库构建,最终通过Fleiss-Kappa分数验证了该数据库的真实性,该方法能够优化数据存储模式,提高数据质量,形成了机器学习模型的数据基础。 展开更多
关键词 数据标准化 数据库构建 深度学习 技术成熟度评价
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中国有源医疗器械行业可靠性及其审评现状研究 被引量:7
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作者 朱嘉伟 杨雪鹤 +3 位作者 郑晨 杨鹏飞 李亚球(综述) 李骞(审校) 《生物医学工程学杂志》 EI CAS CSCD 北大核心 2022年第5期1050-1058,共9页
有源医疗器械是使用范围比较广泛的医疗器械产品,产品具备高可靠性水平是国产有源医疗器械产业实现高质量发展目标的必要要求。本文通过文献研究、资料收集、实地调研、材料综合梳理分析等方式,从产业政策、企业开展情况和审评方法等维... 有源医疗器械是使用范围比较广泛的医疗器械产品,产品具备高可靠性水平是国产有源医疗器械产业实现高质量发展目标的必要要求。本文通过文献研究、资料收集、实地调研、材料综合梳理分析等方式,从产业政策、企业开展情况和审评方法等维度对我国有源医疗器械行业可靠性及其审评现状和存在的问题进行了系统的分析研究,并结合可靠性工作的技术特点,从标准和指导原则两个方向给出具体的问题解决建议,为后续行业制定科学、客观、符合我国行业现状和监管特点的有源医疗器械可靠性技术标准体系和指导原则提供参考。 展开更多
关键词 有源医疗器械 可靠性 审评 现状
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多模态生物特征提取及相关性评价综述 被引量:9
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作者 杨雪鹤 刘欢喜 肖建力 《中国图象图形学报》 CSCD 北大核心 2020年第8期1529-1538,共10页
生物特征识别是身份认证的重要手段,特征提取技术在其中扮演了关键角色,直接影响识别的结果。随着特征提取技术日趋成熟,学者们逐渐将目光投向了生物特征间的相关性问题。本文以单模态和多模态生物识别中的特征提取方法为研究对象,回顾... 生物特征识别是身份认证的重要手段,特征提取技术在其中扮演了关键角色,直接影响识别的结果。随着特征提取技术日趋成熟,学者们逐渐将目光投向了生物特征间的相关性问题。本文以单模态和多模态生物识别中的特征提取方法为研究对象,回顾了人脸与指纹的特征提取方法,分析了基于经验知识的特征分类提取方法以及基于深度学习的计算机逻辑采样提取方法,并从图像处理的角度对单模态与多模态方法进行对比。以当前多模态生物特征提取方法和DNA表达过程为引,提出了不同模态的生物特征之间存在相关性的猜想,以及对这一猜想进行建模的思路。在多模态生物特征提取的基础上,对今后可能有进展的各生物特征之间的相关性建模进行了展望。 展开更多
关键词 生物特征提取 指纹 人脸 多模态 相关性
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Chinese Delegation Attends High-Level Meeting on Women and Children Issues
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作者 yang xuehe 《Voice of Friendship》 2015年第4期30-31,共2页
The opening ceremony of a high-level meeting of the"Every Woman Every Child"global movement was hosted by the Executive Office of the UN Secretary General at the UN headquarters in New York on September 26,2... The opening ceremony of a high-level meeting of the"Every Woman Every Child"global movement was hosted by the Executive Office of the UN Secretary General at the UN headquarters in New York on September 26,2015,attended 展开更多
关键词 CEREMONY attended WOMAN chairman behalf SECRETARY OFFICIALS civil participation welcome
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President Li Xiaolin meets with Kentucky Governor Matthew Bevin
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作者 yang xuehe 《Voice of Friendship》 2018年第4期4-4,共1页
President Li Xiaolin met with Kentucky Governor Matthew Bevin on Nov 9 in Beijing.Li expressed her appreciation of Bevin’s visit as the only US governor to come to China during the midterm election season and for his... President Li Xiaolin met with Kentucky Governor Matthew Bevin on Nov 9 in Beijing.Li expressed her appreciation of Bevin’s visit as the only US governor to come to China during the midterm election season and for his attendance at the First China International Import Expo. 展开更多
关键词 PRESIDENT LI Xiaolin KENTUCKY GOVERNOR MATTHEW Bevin
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Scotland’s First Minister Alexander Salmond Visits China
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作者 yang xuehe 《Voice of Friendship》 2014年第1期6-7,共2页
On the morning of November 3,2013,Vice President Li Jianping of the CPAFFC went to the Capital Airport to welcome Alex Salmond,Scotland’s First Minister and an old friend who visited China successivelly in the years ... On the morning of November 3,2013,Vice President Li Jianping of the CPAFFC went to the Capital Airport to welcome Alex Salmond,Scotland’s First Minister and an old friend who visited China successivelly in the years from 2009 to 2011at the invitation of the CPAFFC.This year,the First Minister’s itinerary was reduced to a three-day visit in Beijing due to his 展开更多
关键词 MINISTER WELCOME INVITATION visited friend MORNING
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CPAFFC Delegation in Denmark and Iceland
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作者 yang xuehe 《Voice of Friendship》 2009年第4期24-26,共3页
ACPAFFC delegation headed by its vice president Li Jianping made a working visit to Denmark and Iceland from April 16 to 24 at the invitation of the
关键词 headed INVITATION DELEGATION VISIT AMBASSADOR PRES
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Vice-President Lin Yi meets with ambassador of Senegal to China
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作者 yang xuehe 《Voice of Friendship》 2019年第1期42-42,共1页
On Jan 2, 2019, Lin Yi,vice-president of the CPAFFC,met in Beijing with H. E. Mamadou Ndiaye, Senegal’s ambassador to China.Lin welcomed Ndiaye and thanked him for his visit at the beginning of the year. She said tha... On Jan 2, 2019, Lin Yi,vice-president of the CPAFFC,met in Beijing with H. E. Mamadou Ndiaye, Senegal’s ambassador to China.Lin welcomed Ndiaye and thanked him for his visit at the beginning of the year. She said that Senegal is an important partner of China in Africa. 展开更多
关键词 AMBASSADOR vice-president important PARTNER
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President Lin Songtian on China-US relations
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作者 yang xuehe 《Voice of Friendship》 2021年第1期2-4,共3页
On Jan 28,at the invitation of Tung Chee-hwa,vice-chairman of the Chinese People’s Political Consultative Conference and chairman of ChinaUS Exchange Foundation,President Lin Songtian of the Chinese People’s Associa... On Jan 28,at the invitation of Tung Chee-hwa,vice-chairman of the Chinese People’s Political Consultative Conference and chairman of ChinaUS Exchange Foundation,President Lin Songtian of the Chinese People’s Association for Friendship with Foreign Countries attended virtually the forum"US-China Relations:The Way Forward"and spoke at the session on people-to-people exchanges. 展开更多
关键词 chairman PRESIDENT EXCHANGES
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Top American and Chinese officials convene remote dialogue on shared global challenges
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作者 yang xuehe 《Voice of Friendship》 2020年第1期8-8,共1页
On April 17,the Chinese People’s Association for Friendship with Foreign Countries and the CaliforniaChina Climate Institute convened a remote dialogue.Li Xiaolin,former CPAFFC president and vice-president of the Chi... On April 17,the Chinese People’s Association for Friendship with Foreign Countries and the CaliforniaChina Climate Institute convened a remote dialogue.Li Xiaolin,former CPAFFC president and vice-president of the China-US People’s Friendship Association,together with former California governor and chair of the institute Edmund G.Brown Jr.cochaired the dialogue. 展开更多
关键词 DIALOGUE California PRESIDENT
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President Li Xiaolin attends 2018 Legislative Summit of National Conference of State Legislatures in US
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作者 yang xuehe 《Voice of Friendship》 2018年第3期4-4,共1页
President LiXiaolin attended the 2018 Legislative Summit of National Conference of State Legislatures in Los Angeles,California,from July 28 to 31.President Li delivered a speech at the NCSL Executive Committee meetin... President LiXiaolin attended the 2018 Legislative Summit of National Conference of State Legislatures in Los Angeles,California,from July 28 to 31.President Li delivered a speech at the NCSL Executive Committee meeting.She pointed out that China has been a peace-loving and responresponsible country since ancient times. 展开更多
关键词 PRESIDENT LiXiaolin NATIONAL
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