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Algorithms in Machine Learning (1) - Random Forest and GBDT Based on Decision Tree Model Combination. Decision Tree This algorithm has many good features, such as training time complexity is low, the prediction process is relatively fast, the model is easy to display (easy to get the decision tree made of pictures) and so on. But at the same time, the single decision tree has some bad points, such as easy over-fitting, although there are some ways, such as pruning can reduce this situation, but not enough. Model combinations (say Boosting, Bagging, etc.) are related to decision trees ...

PHP tutorial based on IP to determine the user's city program $servername = ' localhost ';   $dbname = ' 8684 '; Database Tutorial Name $dbusername = ' root '; Database username $dbpassword = ' 123456 '; Database Password $link =mysql tutorial _connect ($servername, $dbusername,...

The intelligent scheme of PCB production of IBI company based on cloud manufacturing Beijing posts and telecommunications Shaolijiang This paper intends to explore the practical application model of Izumo manufacturing in IBI company through the research of cloud manufacturing technology in manufacturing enterprises, in order to provide a long-term development strategy for IBI company, At the same time for the relevant manufacturing enterprise information to provide a reference program. The thesis is divided into six chapters. The first chapter is the introduction part, briefly introduces the background of the research, the present research situation and the research purpose and significance. The second chapter introduces the theory Foundation of Enterprise Informatization, cloud computing, Internet of things and cloud manufacturing.

Design of cloud computing Ipv4/ipv6 virtual machine Migration system based on FHMIPV6 Chen Wu Jiajia in order to meet the needs of the cloud computing infrastructure to utilize the heterogeneous network resources, the design implemented the cloud computing based on tunneling technology, prefix management, address pool management collaboration and FHMIPV6 ipv4/ IPV6 Virtual Machine Migration system, the traditional Ipv4/ipv6 transition technology and FHMIPV6 technology are applied to the virtual machine migration of cloud computing platform, and the cloud control engine designed in this paper is used as the core and the privileged virtual machine to accomplish the virtual machine migration.

Design and realization of college SNS system based on MongoDB Hu Heng SNS (Social Networking services) social network service, also known as social networking Services, is an Internet application service formed through interpersonal network. Among them, specially for the campus student service SNS website is called the campus SNS website.  This paper introduces the key technology, architecture design scheme and realization of the SNS system in colleges and universities using SPRINGMVC+MONGODB architecture. Design and implementation of SNS system in colleges and universities based on MongoDB

Design and implementation of remote fault Diagnosis Center for equipment based on Cloud Engineering Nanjing University of Goeling This paper studies the theory of cloud computing, characteristics and key technologies, combined with the above problems, the concept of "fault diagnosis Cloud" is introduced, and the storage and calculation of enterprise equipment fault data are concentrated in "cloud". This paper designs a b/c (brower/cloud-center) architecture Remote fault diagnosis system (relative to the traditional C/s and b/s), and expounds the overall composition and working principle of the system. And in the open source cloud computing flat ...

Query processing of large-scale vector spatial data selection based on Mapredue Tao Daiju Zheng Zezhong Liu Shuai for the efficient processing of large-scale vector space data, based on Hadoop parallel computing Framework mapredue, a distributed vector spatial data selection query processing method is realized. First of all, This paper analyzes the Key/value data model of OGC simple factor Standard and Hadoop, designs the vector file format which can be stored in Hadoop HDFs, secondly, according to the two-stage filtering-refining strategy, the map input data fragment, choose to search ...

Design of large-data processing system for agricultural IoT based on opportunity collaboration Shenfenxu the problem of complex communication environment and low efficiency of large data processing in agricultural IoT, an adaptive large data processing mechanism based on opportunity collaboration is proposed. According to the application demand of agricultural IoT, the influence of agro-industrial environment on wireless data transmission is considered, a cross layer interaction analysis model is established, and the large data processing scheme is designed combining the opportunity cooperation mechanism and the large data processing requirement. Experimental analysis and test show that the proposed large data processing scheme in the system throughput, reliability and system processing performance, etc., show a ...

State monitoring method of cloud storage system based on compressed sensing Feng-Keng Zhangliangliang Shen Ye Liang in order to solve the contradiction between high precision and large scale in large-scale state monitoring data processing, it is superior to the Nyquist sampling law to use the compression perception to deal with the wideband signal, A method for monitoring the state of a cloud storage system is proposed, which is Sdcs. Based on the classical matching and tracking MP algorithm, this method can be used to measure the sparse signal with DC component and to ensure that the original reconstruction algorithm still satisfies the improved Bernoulli, by increasing the row and zero constraint condition of the matrix.

HP has installed its Ibrix X9300 scale-out file storage System on 3PAR array products, allowing customers to use the 3PAR T series and F-series array file storage protocols and their automated streamlined configuration, automated management and multi-tenant features. 3PAR once owned a NAS controller device based on exanet products, but it never focused on that area. (Exanet later went bankrupt and its assets were bought by Dell. The protocols supported include CIFS, FTP, HTTP and NFS, HP ...

Research and implementation of cloud storage security system based on FPGA Beijing Jiaotong University Wang Chonsen in this paper, the current security incidents and the popular security protection measures have been deeply studied, combined with the existing results proposed a new cloud storage security solution. A trusted network node is installed between the client and the cloud storage server as the data encryption gateway, using the identity authentication method based on face recognition to authenticate and FPGA hardware acceleration technology, the user data can be transmitted to the cloud through ciphertext after encrypting the trusted gateway to improve the security of storing information in the cloud space. This ...

Application of neural network based on cloud computing in rail traffic scheduling Wan Rongze The reasonable dispatch of Chen Peak Rail traffic is the focus of energy saving and emission reduction, and the problem of large scheduling error in the environment of cloud computing. This paper expounds The theory of cloud computing in detail, applies the cloud computing neural network model to the track traffic scheduling process, solves the model, and realizes the rail traffic dispatch according to the optimal solution obtained. The experimental results show that the improved algorithm can greatly improve the scheduling accuracy and meet the actual demand of the rail transit. Based on cloud ...

The application of reduce task preset proportion based on AHP in Hadoop scheduling Zhoulian Ying Wu Shuhei The existing research work is to optimize the scheduling from the macroscopic, and on the micro, such as the different MapReduce application parameters set ratio, and so on, not a detailed study for this research blank, This paper proposes a reduce task based on AHP to launch the execution scheme, which provides scheduling optimization for specific mapreduce applications in order to improve resource utilization. Based on the ...

Mobile ordering system based on Android cloud computing Chen, Li Ben system to play Android creative and imaginative "cloud" application development, to achieve a set of Android client software and perfect background service function to complete the ordering function. This system mainly includes the background database server, the Web server, the wireless network, the Android front-end and so on. Client Android smartphone has front-end processing and computing power, and access to the Web server through the wireless network, access to the background database if data access is required. Introduce the ...

Research and application of real-time transcoding technology based on cloud computing in tri-Net fusion the Shaofeng of Bao-sheng section in this paper, we will discuss the real-time transcoding technology of video content under the fusion of three nets, through this technology, the on-line real-time conversion and matching of video content can be realized, so that the converted video content could be played on various terminals, and based on cloud computing technology, Build a real-time Transcoding service platform for all kinds of end users to provide Easy-to-use, open, fast and efficient fusion video services. Key words: Triple-Net fusion real-time transcoding cloud computing ...

Research on online accounting service model based on cloud environment--a survey of private enterprises in Zhejiang Yang Online accounting services developed based on cloud technology to realize multi-user dynamic and low-cost sharing resources, enterprise financial information processing storage by the large data processing center built in the cloud. This paper investigates the current situation of the application of online accounting service in Zhejiang Private Enterprises, analyzes the typical online accounting service model, discovers that security, data management, personalized service and so on are the main problems that perplex the online accounting service, puts forward to solve these key control points, and constructs the online meeting which is suitable for the private enterprises

A study on the video transcoding system of TV station based on Hadoop in the whole media age Wu Feng in this paper, the demand of video transcoding in all media times is discussed in detail, the principle of fast video transcoding system based on the Hadoop cloud computing platform and the innovation of the system are detailed. Research on video transcoding system of TV station based on Hadoop in the whole media era

Cloud computing environment resource scheduling strategy based on QPSFLA algorithm He Zhiming public high forest aiming at resource scheduling optimization problem in cloud computing environment, a new improved algorithm (QPSFLA algorithm) based on quantum particle swarm strategy is proposed. The aim of this paper is to introduce a quantum particle swarm search strategy to prevent the traditional blended frog jumping algorithm from falling into local optimum. The simulation results on the Cloudsim platform show that the QPSFLA algorithm can achieve the desired effect, and it is more efficient than the platform self-band algorithm and the traditional hybrid frog jump algorithm. Cloud based on QPSFLA algorithm ...

Virtual machine system based on OpenStack Shi Zhenghua 1, ufida public cloud CSP Overview 2, Cloud Machine Architecture 3, actual combat based on OpenStack virtual machine system

Parallel Data Mining algorithm toolbox and data Mining cloud based on Hadoop platform [download Address]http://bbs.chinacloud.cn/showtopic-12728.aspx