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油料储运工控系统业务安全数据集研究
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作者 李晓明 任琳琳 +5 位作者 王汝墨 刘家译 李忠林 刘学君 沙芸 万园春 《信息安全研究》 2022年第6期570-577,共8页
随着人工智能、大数据、物联网等新一代信息技术的飞速发展,工业互联网浪潮席卷全球,工控系统的安全问题越来越突出.传统的工控系统的安全研究主要集中在网络层面的防护,系统被入侵,造成破坏前的数据异常检测能力不足,当前制约该能力的... 随着人工智能、大数据、物联网等新一代信息技术的飞速发展,工业互联网浪潮席卷全球,工控系统的安全问题越来越突出.传统的工控系统的安全研究主要集中在网络层面的防护,系统被入侵,造成破坏前的数据异常检测能力不足,当前制约该能力的主要因素是缺少包含工控系统业务异常数据的数据集.研究了基于油料储运工控系统业务的半实物仿真系统,针对系统底层业务数据进行攻击,从而得到负例样本,与正常数据形成一套油料储运工控系统业务安全数据集(下文简称油料储运数据集).将油料储运数据集与密西西比数据集、新加坡水厂数据集进行比较,并对3个数据集进行了迁移学习实验.实验结果表明:油料储运数据集比其他两个数据集包含的攻击种类多,且负样本占比最高;油料储运数据集迁移到新加坡水厂数据集的正确率比从新加坡水厂数据集迁移到油料储运数据集的正确率更高,说明油料储运数据集的攻击设计更全面;同样的迁移学习算法用于新加坡水厂数据集与密西西比数据集的迁移正确率虽然高于油料储运数据集与密西西比的迁移,但从工控系统的工艺流程分析,这两个数据集没有相似之处,存在过学习现象;油料储运数据集与密西西比数据集之间的迁移学习的正确率较低,这两个数据集基于完全不同的工控过程,符合客观规律. 展开更多
关键词 油料储运 工控系统安全 半实物仿真系统 工控系统安全数据集 迁移学习数据
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基于SSI-PSO的汽车碰撞试验时序数据处理与分类方法 被引量:1
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作者 李晗 刘钊 朱平 《汽车安全与节能学报》 CAS CSCD 北大核心 2022年第2期259-268,共10页
为实现汽车碰撞试验假人响应曲线数据集的类别辨识,研究了面向智能优化算法的问题转换与构造方法。针对假人曲线数据的特征处理与分类过程,提出了一种基于社会蜘蛛粒子群优化算法(SSI-PSO)的碰撞试验多变量时序数据特征选择与分类方法;... 为实现汽车碰撞试验假人响应曲线数据集的类别辨识,研究了面向智能优化算法的问题转换与构造方法。针对假人曲线数据的特征处理与分类过程,提出了一种基于社会蜘蛛粒子群优化算法(SSI-PSO)的碰撞试验多变量时序数据特征选择与分类方法;利用汽车碰撞试验采集的假人曲线数据,测试和验证了该方法。结果表明:本文方法可获得面向假人曲线数据分类的最佳特征组合方式与较小规模的神经网络结构;该方法的假人曲线分类模型性能提升17.5%、分类精度达到96.5%。因而,实现了对碰撞试验假人响应曲线标注信息的有效分类。 展开更多
关键词 汽车碰撞 安全数据集 多变量时序数据 社会蜘蛛粒子群优化(SSI-PSO)算法 特征工程 监督学习 启发式优化算法
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Toward Energy-Efficient and Trustworthy eHealth Monitoring System 被引量:1
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作者 Ajmal Sawand Soufiene Djahel +1 位作者 Zonghua Zhang Farid Na?t-Abdesselam 《China Communications》 SCIE CSCD 2015年第1期46-65,共20页
The rapid technological convergence between Internet of Things (loT), Wireless Body Area Networks (WBANs) and cloud computing has made e-healthcare emerge as a promising application domain, which has significant p... The rapid technological convergence between Internet of Things (loT), Wireless Body Area Networks (WBANs) and cloud computing has made e-healthcare emerge as a promising application domain, which has significant potential to improve the quality of medical care. In particular, patient-centric health monitoring plays a vital role in e-healthcare service, involving a set of important operations ranging from medical data collection and aggregation, data transmission and segregation, to data analytics. This survey paper firstly presents an architectural framework to describe the entire monitoring life cycle and highlight the essential service components. More detailed discussions are then devoted to {/em data collection} at patient side, which we argue that it serves as fundamental basis in achieving robust, efficient, and secure health monitoring. Subsequently, a profound discussion of the security threats targeting eHealth monitoring systems is presented, and the major limitations of the existing solutions are analyzed and extensively discussed. Finally, a set of design challenges is identified in order to achieve high quality and secure patient-centric monitoring schemes, along with some potential solutions. 展开更多
关键词 eHealthcare wireless body area networks cyber physical systems mobile crowd sensing security privacy by design trust.
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Rough Sets and Nuclear Safety
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作者 钟绍春 周东岱 +6 位作者 BELL David 毕雅欣 吴庆祥 刘大有 张强 高淑虹 管纪文 《Journal of Donghua University(English Edition)》 EI CAS 2007年第2期297-300,共4页
It is well-known that rough set theory can be applied successfully to rough classification and knowledge discovery. Our work is concerned with finding methods for using rough sets to identify classes in datasets, find... It is well-known that rough set theory can be applied successfully to rough classification and knowledge discovery. Our work is concerned with finding methods for using rough sets to identify classes in datasets, finding dependencies in relations and discovering rules which are hidden in databases by means of decision tables and algorithm D. We use these methods to analyze and control aspects of nuclear energy generation. 展开更多
关键词 rough set theory nuclear safety nuclearpower plants data mining
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How PDCA cycle implementation improved surgical time-out compliance rate
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作者 Wang Hong HuangJuan Ren Ya-fang Xu Hui PangYanWei Chang Ying Ma Xiao-fei 《International Journal of Technology Management》 2013年第3期28-30,共3页
Objective: To explore the effect of PDCA-cycle in improving time-out compliance rate and improvement in quality and safety management of surgery. Methods: We improved time-out compliance rate by using PDCA-cycle (a... Objective: To explore the effect of PDCA-cycle in improving time-out compliance rate and improvement in quality and safety management of surgery. Methods: We improved time-out compliance rate by using PDCA-cycle (a quality improvement tools). Data were collected before and after the implementation of PDCA-cycle. The results were analyzed. Results: After implementation of PDCA-cycle, over all time-out compliance rate was increased from 80% to 99.8% (P=0.000). The compliance rate of identifying patient, performing site marking before surgery, verification of correct-site and correct procedure were increased from 85.1%, 79.2%, 89.7% and 89.1% to 99.8%, 99.9%, 100% and 100% (P〈0.05) respectively. Conclusion: Our study validated the PDCA-cycle methodology improves time-out compliance rate, and it is one of the most effective quality improvement tools for hospital management. 展开更多
关键词 PDCA-cycle time-out quality improvement tools experience
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The Complementary Effect of Halal Principles and Sustainable Concept
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作者 M. Zainalabidin R. Golnaz N.S. Mad 《Journal of Environmental Science and Engineering》 2011年第5期652-659,共8页
This paper focuses on Malaysian Muslims perspective towards food safety, environment and animal welfare aspects of Halal principles in manufactured foods. Cross-sectional consumer data were collected through a survey.... This paper focuses on Malaysian Muslims perspective towards food safety, environment and animal welfare aspects of Halal principles in manufactured foods. Cross-sectional consumer data were collected through a survey. One thousand seven hundreds and sixteen (1,716) Muslim respondents all over Peninsular Malaysia were interviewed randomly via structured questionnaire in 2009 to address the issues on Muslim consumers' understanding and perspective of Halal principles and its relation to food safety, environmentally friendly and animal welfare. Descriptive and Chi-square analysis were used to analyze the data collected. The findings revealed that majority of respondent relate Halal principles to food safety because Halal principle not only about slaughtering of animals but must also be Tyoibah or clean. The consumers from East of Peninsular Malaysia, with higher level religiosity and education level are more likely to understand the true meaning of Halal principles, Measuring the extent of consumers' understanding of Halal principles is vital, since Halal does not only focus on the Islamic processing but also sustainable concept of hygiene, sanitation and safety. 展开更多
关键词 Perspective food safety Halal principles manufactured food Muslim.
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Diminutive Usage of Internet Banking: A Malaysian Case Study
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作者 Arasu Raman 《Computer Technology and Application》 2013年第7期380-386,共7页
As the opportunities offered, most individuals and businesses feel that E-banking energies are great. Thus, threats are unavoidable to banks if they fail to identify consequences and vulnerabilities accompanying e-ban... As the opportunities offered, most individuals and businesses feel that E-banking energies are great. Thus, threats are unavoidable to banks if they fail to identify consequences and vulnerabilities accompanying e-banking practices. The usage rate of e-banking in a top international commercial bank in Malaysia is rather diminutive compare to its other bases in countries like Singapore, China and India. Interestingly, it is on decreasing mode year by year. This study aimed to offer a good set of information of the factors influencing low usage and possibilities to suggest ways to increase the usage among the bank customers. In this study, a comprehensive survey data gathering were used to collect and analyze the respondents and results indicate that ease of use is the most significant contributor to the low usage. 204 valid feedbacks were obtained from the SCM bank's customers, with the research indicating that e-banking still has a gap to fill between customers, the bank and the e-system in maximizing the desire of existing clients to go over the net. 展开更多
关键词 Strategic information systems management internet banking electronic marketing.
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临床数据管理中的统计分析人群划分 被引量:4
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作者 王陵 李婵娟 +1 位作者 蒋志伟 夏结来 《药学学报》 CAS CSCD 北大核心 2015年第11期1464-1469,共6页
统计分析人群划分是数据库锁定前的一项重要数据管理工作,也是影响试验假设是否成立的关键环节。盲态下统计分析人群划分的客观性是对试验结果科学性的保证。所有随机化后接受过试验治疗的受试者均应进入安全性数据集,全分析集应尽可能... 统计分析人群划分是数据库锁定前的一项重要数据管理工作,也是影响试验假设是否成立的关键环节。盲态下统计分析人群划分的客观性是对试验结果科学性的保证。所有随机化后接受过试验治疗的受试者均应进入安全性数据集,全分析集应尽可能接近符合意向性分析原则的理想的受试者集,符合方案集的划分是盲态审核中主观性较强、最难以把握的环节。客观的划分统计分析人群涉及到数据的准确性、核查的全面性以及讨论的科学性,无一不是对数据管理的严格要求。确保统计分析人群划分的客观性、科学性既是提高数据管理质量的重要途径,也是主要目的之一。 展开更多
关键词 统计分析人群 数据管理 安全数据 全分析 符合方案
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