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云发生器 1

云模型 1

信任模型 1

信任网络;稀疏学习;同质效应;交互行为 1

信任评估 1

无人机网络;信任模型;安全连接;多普勒频移 1

移动对等网;信任管理;动态分组;超级节点 1

防二重认证签名;变色龙哈希函数;数字签名;可证明安全;权威信任层次 1

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Changes in public trust in physicians: empirical evidence from China

Dahai Zhao, Zhiruo Zhang

《医学前沿(英文)》 2019年 第13卷 第4期   页码 504-510 doi: 10.1007/s11684-018-0666-4

摘要: Studies examining the trends in public trust in physicians have provided a considerable amount of valuable policy implications for policymakers compared with cross-sectional studies on this topic in many countries. This study investigated changes in public trust in physicians in China based on two cross-sectional national surveys conducted in 2011 and 2016 and identified the determinants of these changes. The results indicated 83.4% of respondents in 2011 reported trust or strong trust in physicians in China, which decreased to 64.2% by 2016. The results of ordinal logistic regression demonstrated that public trust in physicians in China had decreased significantly from 2011 to 2016 ( <0.001) after adjusting for other independent variables. Self-reported health status, self-rated happiness, and self-identified social class were all associated positively with public trust in physicians in China. The results also confirmed that decreasing public satisfaction with the most recent treatment experience was the major determinant of decreasing public trust in physicians in China. The findings of this study suggest that decreasing public trust in physicians deserves considerable attention from national policymakers and that improving satisfaction with treatment experiences would be the most effective strategy for enhancing public trust in physicians in China.

关键词: trust in physicians     public trust     physician-patient relationship     health system performance    

基于云模型的信任评估研究

路峰,吴慧中

《中国工程科学》 2008年 第10卷 第10期   页码 84-90

摘要:

讨论了信任关系的随机性和模糊性共存以及相互融合问题。分析云模型描述不确定性概念的方法和实现定性语意与定量数值相互转换的算法,提出了基于云理论的信任评估模型—信任云。该模型提出云特征参数表达的信任传递和合并算法,在精确描述信任期望值的同时,通过熵和超熵刻画了信任的不确定性。相对于传统的信任评估策略,该模型获取的信任值包含更多的语意信息,更适合作为信任决策的依据。

关键词: 信任评估     信任模型     云模型     云发生器    

不使用任何信任关系构建信任网络 Article

Xin WANG, Ying WANG, Jian-hua GUO

《信息与电子工程前沿(英文)》 2017年 第18卷 第10期   页码 1591-1600 doi: 10.1631/FITEE.1601341

摘要: 由于用户信任关系具有一定稀疏性和动态性,准确预测在线社交媒体中的信任关系变得较为困难;此外,大多数社交媒体平台都没有提供明确的信任关系。这些因素使得预测信任关系并构建信任网络具有一定挑战性。首先,验证了利用稀疏学习模型能够较好实现信任关系预测;然后,提出一个新颖框架bTrust,不使用任何信任关系,仅仅利用交互数据和同质性效应构建信任网络;最后,在Epinions和Ciao两个真实数据集上验证了bTrust框架的有效性,表明交互行为和同质性效应在构建信任网络中的重要性。

关键词: 信任网络;稀疏学习;同质效应;交互行为    

Clinical decision-making by the emergency department resident physicians for critically ill patients

null

《医学前沿(英文)》 2012年 第6卷 第1期   页码 89-93 doi: 10.1007/s11684-012-0183-9

摘要:

The application of main methodologies for clinical decision-making by residents in emergency medical practice was assessed, and issues in this area were investigated. The treatments provided to 2 611 critical patients by the Peking Union Medical College Hospital of were analyzed by independent investigators who evaluated the main clinical decision-making processes applied by the hospital residents. The application of decision-making strategies by PG1 and PG3 groups, which means the residents in first year and the third year, were compared. The patients were treated according to pattern recognition (43.0%), hypothetico-deductive reasoning (23.4%), event-driven models (19.3%), and rule-using algorithms (5.9%). A significant difference was found between PG1 and PG3 groups (χ2=498.01, P<0.001). Pattern recognition and hypothetic-deductive methods were the most common techniques applied by emergency physicians in evaluating critically ill patients. The decision-making processes applied by junior and senior residents were significantly different, although neither group adequately applied rule-using algorithms. Inclusion of clinical decision-making in medical curricula is needed to improve decision-making in critical care.

关键词: clinical decision-making     emergency medicine     critically ill patient     resident     methodology    

Effectively cultivate the next generation of competent Chinese physicians: a perspective from a physician

Zongyu John CHEN,

《医学前沿(英文)》 2010年 第4卷 第4期   页码 473-476 doi: 10.1007/s11684-010-0290-4

DGTM:基于动态分组的移动P2P网络信任模型 Article

Mei-juan JIA, Hui-qiang WANG, Jun-yu LIN, Guang-sheng FENG, Hai-tao YU

《信息与电子工程前沿(英文)》 2017年 第18卷 第4期   页码 559-569 doi: 10.1631/FITEE.1601535

摘要: 为解决这个问题,我们首次提出基于动态分组的信任管理模型(Dynamic grouping based trust model, DGTM),该模型通过节点的兴趣对节点进行分类,具有相同或者相似兴趣的节点被分在同一组内

关键词: 移动对等网;信任管理;动态分组;超级节点    

Delivering food safety

Kaye BASFORD,Richard BENNETT,Joanne DALY,Mary Ann AUGUSTIN,Snow BARLOW,Tony GREGSON,Alice LEE,Deli CHEN,Matt WENHAM

《农业科学与工程前沿(英文)》 2017年 第4卷 第1期   页码 1-4 doi: 10.15302/J-FASE-2016123

摘要: A delegation from the Australian Academy of Technological Sciences and Engineering traveled to Beijing in April 2016 to jointly run a workshop on technology advances in food safety with the Chinese Academy of Engineering. This brief summary from the Australian delegation identifies the pyramid of inter- locking issues which must be addressed to deliver food safety. Systems and technology provide the necessary base, on which culture and then trust can be built to facilitate the delivery of food safety now and in the future.

关键词: culture     food safety     systems     technology     trust    

Investigating the effect of online and offline reputation on the provision of online counseling services: A case study of the Internet hospitals in China

《工程管理前沿(英文)》   页码 563-576 doi: 10.1007/s42524-022-0198-0

摘要: The sustainable development of Internet hospitals and e-health platforms relies on the participation of patients and physicians, especially on the provision of health counseling services by physicians. The objective of our study is to explore the factors motivating Chinese physicians to provide online health counseling services from the perspectives of their online and offline reputation. We collect the data of 141029 physicians from 6173 offline hospitals located in 350 cities in China. Based on the reputation theory and previous studies, we incorporate patients’ feedback as physicians’ online reputation and incorporate physicians’ offline professional status as physicians’ offline reputation. Results show that physicians’ online reputation significantly and positively influence their online counseling behaviors, whereas physicians’ offline reputation significantly and negatively influence their online counseling behaviors. We conclude that physician’s online and offline reputations show a competitive and substitute relationship rather than a complementary relationship in influencing physicians to provide online counseling services in Internet hospitals. One possible explanation for the substitute relationship could be the constraints of limited time and effort of physicians.

关键词: Internet hospitals     physicians’ online counseling     online reputation     offline reputation    

Atypical manifestations of acute coronary syndrome — throat discomfort: a multi-center observational study

《医学前沿(英文)》 2022年 第16卷 第4期   页码 651-658 doi: 10.1007/s11684-021-0859-0

摘要: To present the clinical characteristics and the misdiagnosis rate of acute coronary syndrome manifested primarily as throat discomfort, we conducted a multicentric and retrospective study in the cardiology and otorhinolaryngology departments. Records of patients with primary complaint of throat discomfort, absence of chest pain at onset, and an ultimate diagnosis of acute coronary syndrome, as well as patients with pharyngitis (as controls) were collected from May 2015 to April 2016. The patients’ main manifestations were compared. Logistic regression results showed that chest tightness, dyspnea, perspiring, and exertional throat symptoms were significantly associated with acute coronary syndrome, with odds ratios of 8.3 (95% CI 2.2−31.5), 10.9 (95% CI 1.8−66.9), 25.4 (95% CI 3.6−179.9), and 81.2 (95% CI 13.0−506.7). A total of 25 (56.82%) out of 44 acute coronary syndrome patients, who were first admitted to the otorhinolaryngology department, were misdiagnosed, with a 12% (3/25) mortality rate. Throat discomfort can be the principal manifestation of acute coronary syndrome. Such patients exhibit high misdiagnosis and mortality rates. Exertional throat symptoms, chest tightness, perspiring, and dyspnea were important indicators of acute coronary syndrome in patients whose main complaint was throat discomfort. The awareness of this condition will result in prompt diagnosis and reduce morbidity and mortality.

关键词: acute coronary syndrome (ACS)     throat discomfort (TD)     throat pain     cardiology departments     non-cardiologic physicians    

gum or patch treatment for smoking cessation and smoking reduction: a multi-centre study in Chinese physicians

null

《医学前沿(英文)》 2014年 第8卷 第1期   页码 84-90 doi: 10.1007/s11684-014-0311-9

摘要:

In China, around 23% of physicians (41% male, 3% female) currently smoke. Pharmacotherapy for tobacco dependence is available, but is not widely used in China. The purpose of this study was to estimate the effectiveness and the safety on smoking cessation of nicotine gum and nicotine patch in Chinese healthcare professionals. Three hundred regular smokers motivated to quit were recruited from six hospitals in China. All subjects were accepted nicotine replacement therapy, and they could choose nicotine gum (2 mg or 4 mg, depending on baseline smoking level) or nicotine patch (15 mg/16 h) for 12 weeks, with a 12-week follow-up. Limited behavioural support was provided. At Week 24, the 2--24 weeks continuous abstinence rate (verified by expired carbon monoxide) was 17%, the point prevalence abstinence rate (no smoking since the previous visit) was 35%, and 38% of subjects had continuously reduced their daily cigarette consumption by at least 50% versus baseline. Compliance with treatment was good, particularly with patch. No serious adverse event was reported, and most adverse events were mild or moderate. The most common treatment-related adverse events were gastro-intestinal (both gum and patch) and local irritation symptoms. Nicotine patch and gum were well tolerated in Chinese smokers. Abstinence rates were comparable to those previously reported with nicotine replacement therapy, and many smokers who did not quit substantially reduced their cigarette consumption.

关键词: nicotine replacement therapy     smoking cessation     Chinese physicians    

无人机网络中的安全连通性分析 None

Xin YUAN, Zhi-yong FENG, Wen-jun XU, Zhi-qing WEI, Ren-ping LIU

《信息与电子工程前沿(英文)》 2018年 第19卷 第3期   页码 409-422 doi: 10.1631/FITEE.1700032

摘要: 无人机网络的独特特征包括高动态网络拓扑、高移动性以及野外无线环境可能使得无人机网络容易受到攻击和威胁。本文基于无人机行为、运动模式和无人机之间的信道特征,为无人机网络提出一种新颖的信任模型。该信任模型由直接信任、间接信任、信任集成和信任更新4部分组成。基于信任模型,提出一种无人机网络中安全链路的概念,该概念仅在两个无人机之间既有物理链路又有信任链路时存在。此外,利用两架无人机之间的物理连通概率和安全连通概率,分析无人机网络的连通性。通过随机几何方法,推导得到考虑和不考虑多普勒频偏情况下的物理连通概率和安全连通概率的解析表达式。仿真结果表明,与具有和不具有恶意攻击的物理连接概率相比,提出的信任模型可以保证无人机之间的安全通信和可靠连接,并在无人机网络面临恶意攻击和其他安全隐患时提高网络性能。

关键词: 无人机网络;信任模型;安全连接;多普勒频移    

再议防二重认证签名:新定义和基于变色龙哈希的构造 None

Fei LI, Wei GAO, Gui-lin WANG, Ke-fei CHEN, Chun-ming TANG

《信息与电子工程前沿(英文)》 2019年 第20卷 第2期   页码 176-186 doi: 10.1631/FITEE.1700005

摘要: 防二重认证签名(DAPS)是在ESORICS 2014会议上提出的一种新型电子签名。防二重认证性质指同一主题上两个不同消息的签名可以用来摧毁整个签名体系。其提出者已指出防二重认证签名的几个潜在应用场景,比如,在数字证书领域,可以提供针对证书颁发机构(CA)的自我约束体制,使其不敢违规提供假冒证书。本文主要考虑防二重认证签名的基础性质。提出一种适度弱化条件的新定义,同时为刻画防二重认证性质而保持足够性质强度。提出带密钥泄露的可逆变色龙哈希函数的新密码原型。提出防二重认证签名方案的通用构造,同时基于带密钥泄露的可逆变色龙哈希函数性质给出安全性证明。在此通用型防二重认证签名方案框架下,分别基于整数分解、不对称密码算法(RSA)和狄菲-赫尔曼计算(CDH)假设构造了3个具体的防二重认证签名方案。这些方案比现有的防二重认证签名方案效率更高。相比现有方案,分别基于RSA和CDH的两个新方案不再依赖可信系统建立模型。

关键词: 防二重认证签名;变色龙哈希函数;数字签名;可证明安全;权威信任层次    

标题 作者 时间 类型 操作

Changes in public trust in physicians: empirical evidence from China

Dahai Zhao, Zhiruo Zhang

期刊论文

基于云模型的信任评估研究

路峰,吴慧中

期刊论文

不使用任何信任关系构建信任网络

Xin WANG, Ying WANG, Jian-hua GUO

期刊论文

Clinical decision-making by the emergency department resident physicians for critically ill patients

null

期刊论文

Effectively cultivate the next generation of competent Chinese physicians: a perspective from a physician

Zongyu John CHEN,

期刊论文

DGTM:基于动态分组的移动P2P网络信任模型

Mei-juan JIA, Hui-qiang WANG, Jun-yu LIN, Guang-sheng FENG, Hai-tao YU

期刊论文

Delivering food safety

Kaye BASFORD,Richard BENNETT,Joanne DALY,Mary Ann AUGUSTIN,Snow BARLOW,Tony GREGSON,Alice LEE,Deli CHEN,Matt WENHAM

期刊论文

Investigating the effect of online and offline reputation on the provision of online counseling services: A case study of the Internet hospitals in China

期刊论文

Atypical manifestations of acute coronary syndrome — throat discomfort: a multi-center observational study

期刊论文

gum or patch treatment for smoking cessation and smoking reduction: a multi-centre study in Chinese physicians

null

期刊论文

无人机网络中的安全连通性分析

Xin YUAN, Zhi-yong FENG, Wen-jun XU, Zhi-qing WEI, Ren-ping LIU

期刊论文

再议防二重认证签名:新定义和基于变色龙哈希的构造

Fei LI, Wei GAO, Gui-lin WANG, Ke-fei CHEN, Chun-ming TANG

期刊论文