数据可视化的完整流程包括数据采集、数据处理、数据分析及数据可视化4个环节。该文展示使用Power BI Desktop对豆瓣电影TOP250评分数据,进行多页面Web获取、处理及可视化展示的应用案例。首先,使用Power BI Desktop的M语言创建查询函数...数据可视化的完整流程包括数据采集、数据处理、数据分析及数据可视化4个环节。该文展示使用Power BI Desktop对豆瓣电影TOP250评分数据,进行多页面Web获取、处理及可视化展示的应用案例。首先,使用Power BI Desktop的M语言创建查询函数,通过添加列选择调用自定义函数,实现多页面Web数据源的连接与获取。接着,通过数据转换功能执行字段提取与数据类型转换,最终得到包含电影排名、名称、评分和上映年份等关键字段的数据表。最后,基于250部电影的评分数据创建数据可视化内容,包括柱形图、电影得分切片器及影片信息矩阵表格,根据电影评分数据为柱形图设置颜色递进效果,对切片器和影片信息矩阵表格添加联动效应,达到交互式的效果。展开更多
目的利用Power BI Desktop对医院DIP分组明细进行多维度对比分析及数据可视化,寻找医院DIP亏损原因。方法提取某三甲肿瘤专科医院2022年度部分出院结算DIP入组明细数据,通过数据导入、数据类型转换、建立数据关系、数据建模、数据可视...目的利用Power BI Desktop对医院DIP分组明细进行多维度对比分析及数据可视化,寻找医院DIP亏损原因。方法提取某三甲肿瘤专科医院2022年度部分出院结算DIP入组明细数据,通过数据导入、数据类型转换、建立数据关系、数据建模、数据可视化等方法,建立全院、科室、病种等多个维度的可视化动态分析报表。结果Power BI Desktop能有效提升DIP精细化管理水平,提升工作效率,精准分析亏损原因,指导科室进行改进,有效减少医院DIP医保资金亏损。结论Power BI Desktop具有成本低廉,定制化、可视化、自动化程度高,用户界面友好等特点,值得在各医院尤其是信息化程度低、专科运营人员不足、资金预算不足的医院DIP精细化管理中进行推广。展开更多
The clustering algorithm has a very important application in the data mining technology,and can achieve good results in the data classification operation.With the rapid development of the network communication technol...The clustering algorithm has a very important application in the data mining technology,and can achieve good results in the data classification operation.With the rapid development of the network communication technology and the personal computers and other digital devices,the real-time computer desktop image transmission technology has been widely used.The computer desktop image compression algorithm based on the block classification can effectively realize the compression and storage of the computer desktop images,and significantly improve the speed and quality of the computer desktop image transmission.展开更多
This paper proposes a content addres sable storage optimization method, VDeskCAS, for desktop virtualization storage based disaster backup storage system. The method implements a blocklevel storage optimization, by em...This paper proposes a content addres sable storage optimization method, VDeskCAS, for desktop virtualization storage based disaster backup storage system. The method implements a blocklevel storage optimization, by employing the algorithms of chunking image file into blocks, the blockffmger calculation and the block dedup li cation. A File system in Use Space （FUSE） based storage process for VDeskCAS is also introduced which optimizes current direct storage to suit our content addressable storage. An interface level modification makes our system easy to extend. Experiments on virtual desktop image files and normal files verify the effectiveness of our method and above 60% storage volume decrease is a chieved for Red Hat Enterprise Linux image files. Key words： disaster backup; desktop virtualization; storage optimization; content addressable storage展开更多
Desktop calibration of automatic transmission(AT) is a method which can reduce cost, enhance efficiency and shorten the development periods of a vehicle effectively. We primary introduced the principle and approach of...Desktop calibration of automatic transmission(AT) is a method which can reduce cost, enhance efficiency and shorten the development periods of a vehicle effectively. We primary introduced the principle and approach of desktop calibration of AT based on the condition of coupling characteristics between engine and torque converter and obtained right point exactly. It is shown to agree with experimental measurements reasonably well. It was used in different applications abroad based on AT technology and achieved a good performance of the vehicle compared with traditional AT technology which primary focuses on the drivability, performance and fuel consumption.展开更多
As personal computers have been recently improved in performance,a multi-tasking of running several applications at the same time has been generalized. Since only one task space is provided for performing such tasks i...As personal computers have been recently improved in performance,a multi-tasking of running several applications at the same time has been generalized. Since only one task space is provided for performing such tasks in the Windows operating system,a number of computer users feel inconvenience.In this paper,we suggest a 3D Virtual Desktop System which can show a process of switching task spaces in 3D motion using DirectX. Our system aims to make up for the weak points in the Windows operating system,and to provide a computer user with more spaces for performing several tasks as well as the intuitive UI(User Interface),such as Compiz of Linux.展开更多
This paper introduces the middleman attack methods which are against the remote desktop protocol(RDP),discusses advantages and disadvantages of several current mainstream prevention strategies,and puts forward a new p...This paper introduces the middleman attack methods which are against the remote desktop protocol(RDP),discusses advantages and disadvantages of several current mainstream prevention strategies,and puts forward a new prevention strategy.The strategy,taking advantage of the original key agreement process of the RDP,designs a piecewise authentication scheme of the key agreement.Using the strategy can achieve the purpose of prevention and detection of middleman attacks.Finally,the security of the strategy is analyzed.展开更多
文摘数据可视化的完整流程包括数据采集、数据处理、数据分析及数据可视化4个环节。该文展示使用Power BI Desktop对豆瓣电影TOP250评分数据,进行多页面Web获取、处理及可视化展示的应用案例。首先,使用Power BI Desktop的M语言创建查询函数,通过添加列选择调用自定义函数,实现多页面Web数据源的连接与获取。接着,通过数据转换功能执行字段提取与数据类型转换,最终得到包含电影排名、名称、评分和上映年份等关键字段的数据表。最后,基于250部电影的评分数据创建数据可视化内容,包括柱形图、电影得分切片器及影片信息矩阵表格,根据电影评分数据为柱形图设置颜色递进效果,对切片器和影片信息矩阵表格添加联动效应,达到交互式的效果。
文摘目的利用Power BI Desktop对医院DIP分组明细进行多维度对比分析及数据可视化,寻找医院DIP亏损原因。方法提取某三甲肿瘤专科医院2022年度部分出院结算DIP入组明细数据,通过数据导入、数据类型转换、建立数据关系、数据建模、数据可视化等方法,建立全院、科室、病种等多个维度的可视化动态分析报表。结果Power BI Desktop能有效提升DIP精细化管理水平,提升工作效率,精准分析亏损原因,指导科室进行改进,有效减少医院DIP医保资金亏损。结论Power BI Desktop具有成本低廉,定制化、可视化、自动化程度高,用户界面友好等特点,值得在各医院尤其是信息化程度低、专科运营人员不足、资金预算不足的医院DIP精细化管理中进行推广。
文摘The clustering algorithm has a very important application in the data mining technology,and can achieve good results in the data classification operation.With the rapid development of the network communication technology and the personal computers and other digital devices,the real-time computer desktop image transmission technology has been widely used.The computer desktop image compression algorithm based on the block classification can effectively realize the compression and storage of the computer desktop images,and significantly improve the speed and quality of the computer desktop image transmission.
基金the Hi-tech Research and Development Program of China，the National Natural Science Foundation of China，the Beijing Natural Science Foundation，the Fundamental Research Funds for the Central Universities，the Fund of the State Key Laboratory of Software Development Environment
文摘This paper proposes a content addres sable storage optimization method, VDeskCAS, for desktop virtualization storage based disaster backup storage system. The method implements a blocklevel storage optimization, by employing the algorithms of chunking image file into blocks, the blockffmger calculation and the block dedup li cation. A File system in Use Space （FUSE） based storage process for VDeskCAS is also introduced which optimizes current direct storage to suit our content addressable storage. An interface level modification makes our system easy to extend. Experiments on virtual desktop image files and normal files verify the effectiveness of our method and above 60% storage volume decrease is a chieved for Red Hat Enterprise Linux image files. Key words： disaster backup; desktop virtualization; storage optimization; content addressable storage
文摘Desktop calibration of automatic transmission(AT) is a method which can reduce cost, enhance efficiency and shorten the development periods of a vehicle effectively. We primary introduced the principle and approach of desktop calibration of AT based on the condition of coupling characteristics between engine and torque converter and obtained right point exactly. It is shown to agree with experimental measurements reasonably well. It was used in different applications abroad based on AT technology and achieved a good performance of the vehicle compared with traditional AT technology which primary focuses on the drivability, performance and fuel consumption.
基金supported by the MKE(The Ministry of Knowledge Economy),Korea,through the ITRC(Information Technology Research Center)Support Program supervised by the NIPA(National IT Industry Promotion Agency)"(NIPA-2010-C1090-0803-0006)
文摘As personal computers have been recently improved in performance,a multi-tasking of running several applications at the same time has been generalized. Since only one task space is provided for performing such tasks in the Windows operating system,a number of computer users feel inconvenience.In this paper,we suggest a 3D Virtual Desktop System which can show a process of switching task spaces in 3D motion using DirectX. Our system aims to make up for the weak points in the Windows operating system,and to provide a computer user with more spaces for performing several tasks as well as the intuitive UI(User Interface),such as Compiz of Linux.
基金the National Natural Science Foundation of China(No.61272500)the Beijing Natural Science Foundation(No.4142008)the Pre-launch of Beijing City Government Key Tasks and District Government Emergency Projects(No.Z131100005613030)
文摘This paper introduces the middleman attack methods which are against the remote desktop protocol(RDP),discusses advantages and disadvantages of several current mainstream prevention strategies,and puts forward a new prevention strategy.The strategy,taking advantage of the original key agreement process of the RDP,designs a piecewise authentication scheme of the key agreement.Using the strategy can achieve the purpose of prevention and detection of middleman attacks.Finally,the security of the strategy is analyzed.
