Static Field Definition

This article is my second time reading Hadoop 0.20.2 notes, encountered many problems in the reading process, and ultimately through a variety of ways to solve most of the. 　　Hadoop the whole system is well designed, the source code is worth learning distributed students read, will be all notes one by one post, hope to facilitate reading Hadoop source code, less detours. 1 serialization core Technology The objectwritable in 0.20.2 version Hadoop supports the following types of data format serialization: Data type examples say ...

From Facebook to Google to Sony and Samsung, the world's tech giants seem to be embroiled in a virtue of consumer-class VR (Reality, virtual reality) overnight. The arms race was founded last March when Facebook spent $2 billion to buy Oculus. The Giants ' death has become a bellwether for capital, and investment firms and more giants are looking for VR start-ups and companies to inject capital into the future. Tiger Sniff recently interviewed the Storm audio and video CEO Fengxin, Ant Vision Technology CEO Dr. Shang, ID ...

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Mintzberg is known as the "deviant in Management", in its strategic course: the strategic Management School, he did not give a clear definition of strategy, but the strategic theory to 10 schools, and to comment on. The simple explanation of strategy from one perspective, he argues, is like elephant: The man who touches his nose says the elephant is a snake, the man who touched the ear said that the elephant is a fan, the person who touches the knee says the elephant is a tree, the person who touches the tail says elephant is a rope, the person that touches elephant body says elephant is a wall ... We may as well use this method to think and deconstruct the strategic tube ...

Translation: Esri Lucas The first paper on the Spark framework published by Matei, from the University of California, AMP Lab, is limited to my English proficiency, so there must be a lot of mistakes in translation, please find the wrong direct contact with me, thanks. (in parentheses, the italic part is my own interpretation) Summary: MapReduce and its various variants, conducted on a commercial cluster on a large scale ...

Recently, "information visualization" is being studied, so first of all, it is necessary to define the research category. Prior to the definition of information visualization, some colleagues have studied this article to simply extract the definition of wiki: Information visualization (Information visualization) is an interdisciplinary field, designed to study the visual presentation of large-scale non-numerical information resources, such as the software system Many documents or in-line program code, as well as the use of graphics and image technology and methods to help people understand and analyze the data. Compared with scientific visualization, information visualization focuses on abstract numbers ...

Chapter One introduction to network retailing research object of network retailing and its research object (i) Research object of subject research object is a high generalization of the research scope and content of a subject. To determine the meaning of research objects is the starting point of discipline research, only the establishment of research object, can establish a scientific discipline system. Any subject has its specific object of study, the subject of which is not a specific subject can not be called as an independent discipline, and the difference between the subjects is the fundamental difference between the subject. There is no unified understanding of the criteria for the establishment of subject research objects.

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Chapter One introduction to Network retailing payment and settlement the first section research object of network retailing payment and settlement (i) The research object of subject research object is the height generalization of the research scope and content of a subject. To determine the meaning of research objects is the starting point of discipline research, only the establishment of research object, can establish a scientific discipline system. Any subject has its specific object of study, the subject of which is not a specific subject can not be called as an independent discipline, and the difference between the subjects is the fundamental difference between the subject. For subject Research Object ...

From the Institute of Software Research, Chinese Academy of Sciences, National Engineering Research Center system security and Trusted computing, Ms. Ding Liping for you to share "cloud computing environment covert channel analysis." 　　She described in detail the three aspects of covert channels, security threats and covert channels in cloud computing environments, and their work. ▲ Software Institute of Chinese Academy of Sciences the concept of covert channel covert channel at operating system level refers to the way that malicious process realizes information leakage through collusion information system (Ding Liping), and the covert channel analysis is the security standard at home and abroad.