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Multidimensional Cloud Data Index He Yi Yue Yangfan based on KD tree and R-Tree Yun Chunrezhouvi for the cloud storage system, most of the data are stored on the Key,value model based on the key value, the multidimensional query needs to completely scan the whole dataset, the query efficiency is low, and a multidimensional index structure based on KD tree and R tree ( Abbreviation KD-R index). The KD-R index adopts the double index model, establishes the multidimensional global index based on KD tree on the global server, and constructs the R-Tree multidimensional local index in the local data node. Based on the performance loss model, select the R tree with lower index cost ...

Authenticated key agreement protocol based on hierarchical identity Cao Chenlei Liu Mingxi Zhang Ju Yang Yixian The current Identity-based Authentication Key agreement protocol is a trusted third party with a single private key generator (PKG), but it is difficult to meet the requirement of identity layering registration and authentication. This paper reconstructs the constituent elements of the private key based on the hierarchical Identity Encryption (Hibe) system. A authenticated key agreement protocol based on hierarchical identity is proposed by using bilinear mapping on elliptic curve multiplication cyclic group, which provides a secure session key bargaining machine for cloud entities belonging to different levels.

An empirical study on the trust mechanism of cross-organization information system based on cloud Zhu Dongdeshong Rai Jiawei proposed a model of trust generation and action mechanism based on cloud-spanning information system (CIOs), and empirically tested the model with 256 valid sample data from mainland China. The results show that trust in users has an important influence on the attitude and intention of CIOs, while reliability, usability, controllability and interoperability are the key factors that CIOs can be trusted. Based on the research findings, some suggestions are given for the development and application of CIOs. Cross-organization information system based on cloud ...

Novel software costing based on activity-based costing--application to cloud computing software systems Li software development methods vary, project management is often dominated by information professionals, even though management accountants understand the details of software development methods, but without a set of operating mechanism in the software development process, It is not easy to estimate the cost beforehand and the rationality of each work expenditure in the process, put forward the professional opinion. This article designs a set of current software engineering project development management work routine operation mechanism, on the one hand satisfies the information professional to the project management request, on the other hand combines the work ...

Research on cloud storage system based on Moosefs industry acquisition data in Nanjing University of Posts and telecommunications Ouri This paper uses Moosefs (MFS) to build the industrial collection data cloud storage system and to analyze the MFS code in detail, and put forward the design idea of storage node as compute node at the same time. In order to solve the problem that the large amount of industrial data can not be stored, a special distributed storage algorithm is designed, which provides a special interface to store industrial data. It takes a lot of time and resources to query large amount of industrial data in cloud storage system, and the timing data parallel distributed query is designed in this paper.

Study on the campus cloud storage system based on Hadoop high and new, Wang for the storage of massive data, the traditional method is generally to increase the number of servers to improve computing and storage capabilities, there are hardware costs, storage efficiency and so on shortcomings. Based on the analysis and research of the core technology of cloud computing such as Hadoop framework and MapReduce programming model, this paper puts forward a kind of large data storage model on the basis of Hadoop framework, and based on this model, designs and realizes the campus cloud storage system based on Hadoop. Keywords-h ...

dynamic management and energy-saving strategy of cloud storage replicas based on user access characteristics Wang Jinying Yu Yu Yingchang Sweet Lu Liang Bann in view of the problem of the serious waste of server utilization in cloud computing environment, this paper presents a dynamic management and energy saving strategy of cloud storage replicas based on user access feature. By transforming the user access characteristics into computing block's access heat, the Datanode actively applies for hibernation to achieve energy saving according to the overall access heat of the node. dynamic management and energy saving strategy of cloud storage replicas based on user access characteristics

Research on customized server performance based on cloud computing services Shenling Zhao Kan Sun Zhixin as a core resource for computing capabilities, servers are important in cloud computing. Customized server with optimized performance, density, weight, power consumption and other characteristics, has been in the Internet industry and cloud computing industry has been widely used. In this paper, in three different scenarios of Web application, virtualization application and distributed storage application, the performance index of customized server under different load capacity is tested, and the general change rule and primary and secondary relation of performance index are found, and the customization and optimization of hardware for the server ...

Design and implementation of courseware cloud service system based on JBPM the paper aims to establish a cloud system that provides courseware design, courseware release, courseware sharing, courseware push and cloud space file management, etc. through cloud storage technology and workflow technology. At first, this paper studies and contrasts the current research and development situation of domestic and foreign related fields, it is found that the application of cloud computing technology and workflow technology is not very ideal in the field of education. Then, based on the analysis and comparison, the technology of Hadoop (mainly the HDFs) involved in the system and ...

Research and design of micro-blog Hot Topic mining system based on Hadoop Lu Yao Li Zhenting This paper first introduces the theory of Web data Mining, the theory of Hadoop technology and the research status of micro-blog Hot Topic Mining in the world. On this basis, the traditional micro-blog Hot Topic mining method is synthesized and improved, aiming at researching and designing the micro-Blog Hot Topic mining system based on Hadoop. Keywords: hadoop; data mining; research and design of micro-blog Hot Topic mining system based on Hadoop

Image classification and annotation based on Hadoop cloud computing platform Huang Hou Li bin in order to effectively deal with and use the Internet's massive image and video data, a new image classification and annotation solution based on Hadoop cloud platform is proposed. Aiming at how to efficiently collect the training set, the important problem is This paper constructs a cloud-based image grabbing platform, uses the Internet image resources as the original data set, provides sufficient data for extracting the training set image, realizes the training set image extraction function based on probabilistic latent semantic analysis model, and carries on the theme based on the original data set.

Application of cloud computing in e-government based on virtualization technology Southwest Jiaotong University Turre This paper presents a solution of cloud computing based on VMware Virtualization technology, based on the analysis of the characteristics and development of cloud computing, virtualization and e-government. and from the technical feasibility of the project and specific deployment implementation perspective of the detailed elaboration, through the solution it vendors to the Cloud Computing Center resource Effective integration, in an efficient, cost-effective way for customers to provide infrastructure IA ...

Research on distributed processing of network monitoring information flow based on Hadoop Chen Guoliang A new method of distributed cluster processing based on Hadoop cloud computing framework is proposed for the monitoring of information flow of large data sets in intelligent power grid dispatching system. By analyzing the characteristics of information flow in power grid monitoring system, extracting 3 kinds of critical information flow, using the Distributed File system HDFs and Mapping aggregation model Map/reduce, establishing the distributed processing platform of Cluster group, and realizing the high efficient parallel processing of the monitoring data. Taking the data set of section measurement record of a distribution network as an example.

Cloud-based Office solutions and business model Ecust Guyi This paper also makes a detailed analysis and research on the system design, platform architecture, function and non-functional requirement of the collaborative Office solution based on cloud computing, and gives the corresponding suggestions. In the aspect of business model, this paper expounds the business model of collaborative office based on cloud computing, including the structure model of business model and factor analysis. Through the analysis, summed up the business model based on cloud computing and traditional software business model between the different points and have ...

Research and demonstration of distributed electricity calculation system based on cloud computing Sukey in order to deal with the huge challenge of the electricity calculation system, this paper uses the distributed computing technology in cloud computing, based on a trust-driven task scheduling algorithm Tr-max-min, proposes a new system structure of the Distributed electricity Tariff computing platform, The system is implemented in the IT environment of the power grid. By simulating the calculation task of electricity bill, the efficiency of the system for the comprehensive processing of massive data is validated. As an effective task-solving method for large amount of power network operation, it provides a ...

Research on Intelligent HD Video surveillance system based on cloud computing Fang Guanliang, the network video surveillance system to the massive video data storage and the Intelligent video Analysis service's demand is increasingly outstanding, to the system hardware computational ability is limited, cannot satisfy the user demand diversity, the system expansibility is limited by the storage equipment capacity limits and so on, Through the virtualization technology constructs the cloud computing basic resource pool, uses the Hadoop Distributed file system to store the massive video data, realizes the large-scale parallel computation using the MapReduce programming model, enhances the system scalability and the reliability, for the user ...

Hospital information system based on cloud computing technology Shandong University Liang Jingwen This paper puts forward a solution based on cloud computing technology for the problem of data storage encountered in the development of his system, and further perfects the solution, and completes the design and realization of the whole system. Through the design of the system, it realizes the virtualization of his system storage server and the distributed storage of data resources. The virtualization of storage server can solve the problem of waste of storage space, load balancing, dynamic backup and dynamic migration of the underlying storage facilities. Use Hadoop for ...

The research of food safety supervision based on cloud computing Deng, Liu Hongzhi use cloud computing technology to build a food safety supervision framework based on cloud computing from the perspective of establishing food safety supervision system. Based on the analysis of the risk factors and the possibility of food safety, a food safety risk assessment model was established.   Through the modeling analysis of this model, an effective food safety supervision mechanism is formed to reduce the probability of food safety accidents. Key words: cloud computing; Food safety; Supervision; ...

Cloud computing task scheduling algorithm based on mutation operator Chen Cai Gaoxiang in order to efficiently dispatch the massive tasks in cloud computing, an improved genetic algorithm is proposed. The mutation operation is divided into two kinds, in order to avoid the improvement of mutation operation so that the algorithm into a local solution, in the population initialization, the chromosome matching rate of the way to choose the initial population, so that it evenly distributed in the entire solution space. Cloud computing task scheduling algorithm based on mutation operator

Recently, Flixmaster is a free value-added service released at Fortune Brainstorm:tech convention. It is a cloud based video editing and publishing platform, users can create their own dynamic interactive video, the story to explain to the user is a very new experience. The Flixmaster system provides a simple, visually visible video production model. It uses HTML5 and powerful analysis technology, provides the drag-and-drop editor, opens the door for the user to make the splendid video independently, enables the user to be able ...