Framework

Highly scalable sparse matrix multiplication Wuzhiguang Mao Chen Han Lei lijun matrix multiplication is a very important basic operation in linear algebra and graph algorithm, while the matrices in large-scale data processing are often sparse matrices. The MapReduce programming framework can effectively support the distributed computing of massive data. Therefore, how to use MapReduce programming framework to realize the multiplication of super large sparse matrix is studied. The traditional matrix multiplication parallel algorithm does not specifically optimize the sparse matrix, resulting in a large number of unnecessary communication overhead during the calculation.

Research and implementation of distributed ETL based on Hadoop Platform Donghua University gang the author mainly studies and realizes the work as follows first, distributed ETL Framework design. Based on the theory of dimension modeling in Data Warehouse, a distributed ETL framework including dimension and fact parallel processing and HDFS data block allocation is designed by analyzing the MapReduce working mechanism and job scheduling under the Hadoop platform. Second, the study of the parallel processing of facts. From the fact table lookup Surrogate key and the multi-granularity fact pre-aggregation two angles to start, put forward in the gradient ...

Sohu PAAs Cloud Platform Practice Sohu-Ushenge--project decision--Technical framework--problems and experiences--private cloud achievements--public cloud challenges and characteristics Sohu PAAs Cloud Platform Practice Path

Large data real-time processing: real-time and interactive: the entanglement of technology and reality Wugansha large data for several years, it is true to discover that it is a practical discipline. I have been thinking: why there are hundreds of NoSQL database, with vigorous vitality of less than 10 species? Why do you have to make some "subtle" differences in consistency, read and write performance, and security controls on a few variants of big table?  Once thought that storm is the true destiny of the flow processing, how to solve the new flow processing framework is still endless? Real-time processing of large data: real time and interaction: the entanglement of technology and reality

Absrtact: Guizhou Governor Chen and Foxconn Technology Group chairman Terry Gou signed the "Comprehensive deepening strategic cooperation framework Agreement" in Guiyang recently. Starting from the construction of the fourth generation Green industrial park in the 2013, the cooperation between Guizhou and Foxconn entered a comprehensive strategic cooperation step Guizhou Governor Chen and Foxconn Technology Group chairman Terry Gou signed the "Comprehensive deepening strategic cooperation framework Agreement" in Guiyang recently. 　　With the construction of the fourth generation Green industrial park in 2013 as the starting point, the cooperation between Guizhou and Foxconn entered a comprehensive strategic cooperation stage. Under the agreement, Foxconn will invest in its investment in the construction of ...

A 3D print cabin. 　　On the April 12, the inventor of the building printing technology, Ma Yi (left), introduced the architectural framework printed out using a 3D printer. Recently, 10 3D (three-dimensional) printing construction in Shanghai Zhangjiang High-tech Qingpu Park opened the mystery. The walls of these buildings are special "ink" made of building rubbish, according to computer design drawings and schemes, by a large 3D printer layer superimposed inkjet, according to the introduction, 10 of the building process of the hut cost only 24 hours.

A few days ago, the vertical electric business site where customer Prudential products once again announced the adjustment of organizational structure. According to the reporter understand, every guest in the internal promulgated "on the organizational structure adjustment notice", the notice, in order to deal with the Chinese Internet and the clothing industry constantly changing new situation, the organization structure adjustment, will "innovation" in the first place. It is reported that in the new organizational framework, the newly established Mobile Innovation department will be as one of the key layout of innovation. In addition, to accelerate the pace of internationalization efforts to form the new business growth point of 2013, another focus of the new layout of the customer. Every guest inside discloses, at present every guest has begun to target Russia luo ...

Asymptote is a http://www.aliyun.com/zixun/aggregation/17547.html "> powerful descriptive vector Graphics language that provides a framework for engineering graphics based on natural coordinates." Its labels and equations are high quality PostScript outputs using latex typesetting. The main advantage of asymptote difference with other graphics software is a programming language, not just a graphics program. Asymptot ...

Ultimix 1.5.89 Update log: 1.The "user::user_controller" Package was rehttp://www.aliyun.com/zixun/aggregation/16557.html ">factored. 2.The "user::user_view" P ...

A method is used to instantiate the controller internally, calling the format: A (' [Project://][Group/] module ', ' Controller layer name ') simplest usage: $User &http://www.aliyun.com/zixun/aggregation/ 37954.html ">nbsp;= A (' User '); represents the useraction controller that instantiates the current project (the corresponding file for this controller is located in lib/action/u ...).

TOMP2P version 4.0.0 can better support UPnP and the new NAT-PMP (Jnat pmplib). Supports new persistent connections, new connection handling and retention. The upgraded libraries include: Netty, guava, and berkleydb. and fixes for multiple issues. TOMP2P is a repository of high performance key value pairs based on peer-to-peer data. Each value has a table (disk-based or memory) for the data to store its own value. A single value can be used to query or update minor keys. The basic framework of communication uses JAV ...

ITDB 1.4 Adds a number of useful new features: Cloning items, tracking user changes (project log), connecting items to inconsistent warnings (status, user or location), Unicode fonts in tags, qr barcode in tags, and translation interface. The framework now has its own separate list and edit page. Changing the frame position will update the project. Now the definition is set in the GUI. ITDB is a web-based tool for storing asset information in an office environment, primarily for it devices, but not limited to this. It will help you keep track of hardware, soft ...

NetBeans is an open source software development tool built by Sun, an open framework, extensible development platform, can be used for development of java,c/c++ and so on, itself is a development platform, can pass through http://www.aliyun.com/zixun/ aggregation/35077.html > extension to extend functionality. It is a full-featured open source Java IDE that can help developers write, compile, debug, and deploy Java applications and ...

Chiaki Hi-Tech (000998.　　SZ) yesterday announced that the company January 27 with the world's fourth largest group of companies in France Limagrain Group signed the establishment of a joint venture company framework Agreement. The announcement said that according to the framework agreement signed by Vilmorinhongkonglimited (VHK), a holding company with 72% per cent of the Limagrain group, the two sides would invest in RMB 200 million to set up joint ventures in China, Vilmorin&cie Engaged in hybrid maize seeds, wheat seeds, oil and fat crops ...

Lei for developing countries, how to raise the right to speak in the global economic framework remains a subject of great concern.　　Central bank Governor Zhou Xiaochuan reiterated this during the meeting, while the International Monetary Fund's president, Dominique Strauss-Kahn, surrounded by Chinese journalists, was also inevitably asked about the news that the newly appointed deputy governor of the Chinese central Bank, Zhu Min, might have been the IMF's vice president. Mr. Strauss-Kahn made clear that he was indeed discussing personnel issues with China. "I am in talks with the Chinese authorities and other countries to reduce the number of members with English accents, so that more people around the world ...

Research and implementation of resource matching system based on task demand Wang, Yang Yixian This paper analyzes the resource matching method in the open source cloud computing framework and its deficiencies in task requirements and resource constraints, and puts forward a task demand resource matching algorithm based on greedy algorithm, which is implemented in the resource management system actually used. The experiments in the real resource management system show that the proposed algorithm can match the resource matching of task requirements and resource constraints to achieve satisfactory results. Keywords: cloud computing; task demand; Resource matching research and implementation of resource matching system based on task &n ...

An ant colony optimization algorithm based on MapReduce Wang Zhao far Li Tianrui Ishiwen discusses several parallel ways and scenarios of ant colony algorithm and the feasibility of combining the cloud computing programming framework MapReduce, and abstracts the local search class ant colony optimization algorithm into several components, corresponding to several interfaces of the MapReduce framework, it provides a flexible and scalable solution for this ant colony optimization algorithm to achieve parallelization under MapReduce framework. Finally, the validity of the proposed method is verified by the simulation experiment of the traveling quotient problem. ...

Research on remote sensing Digital image processing method based on Hadoop northeast Zhou based on the Hadoop cloud computing system, this paper mainly uses the Parallel programming framework MapReduce realize the enhancement processing of remote sensing digital image and clustering the enhanced image, and compares it with PC serial processing. In view of the low overall brightness and poor visual effect of remote sensing digital image, the traditional image enhancement method can not achieve the visual interpretation of human eye comfort and the problem of subsequent processing.

The Apache Spark and Databricks Conviva co-founder Ion Stoica Ion Stoica is UC Berkeley computer professor, Conviva co-founder and is currently the CEO of Databricks. Flexible Peer-to-peer protocol chord, cluster Memory computing framework spark, cluster resource management platform Mesos all came from him. The keynote address at the Spark Summit was the development of Databricks and the Databricks cloud. ...

Dynamic allocation and Parallel Execution in Cloud r.s. Deepa and V. Valarmathi in this project the data 處理 framework to Explicitly exploit the dynamic resource allocation of ...