For Loop Explanation

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 ...

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With the explosion of information, micro-blogging website Twitter was born. It is no exaggeration to describe Twitter's growth with the word "born". Twitter has grown from 0 to 66,000 since May 2006, when the number of Twitter users rose to 1.5 in December 2007. Another year, December 2008, Twitter's number of users reached 5 million. [1] The success of Twitter is a prerequisite for the ability to provide services to tens of millions of users at the same time and to deliver services faster. [2,3,4 ...

Electric dealers gradually entered the end of the dividend, Beijing-east, Tencent, Ali three dead rivals in the Battle of O2O nearly white-hot. At the same time, once "net" touch badly beaten traditional chain enterprises, will O2O as the only resistance to the power of the dealer's weapons. At present, there are two main ways for traditional chain enterprises to explore in O2O: self-built channels and cooperation with electric business platform. Among them, the O2O mode of cooperation with the electric power trader has now plunged into the irreversible crisis. With the electric business cooperation O2O vigilance becomes the electric dealer subsidiary product NET to order the shop to take, the net order the shop to send, as the electric business experience Shop is the chain enterprise and the electricity merchant cooperation often ...

Thanks to my current job and the local service, I had a chance to see a variety of therapeutic games for children with neurological rehabilitation. Most games are equipped with specialized input devices. Exactly, the input device should be a matching game. Because the manufacturer usually considers the game after the equipment is built. In addition, the design intentions of those games are good, but often do not show. I decided to make a list of my own observations and suggest some improvements. The idea below is not to denigrate the work of other design programmers, but to explore the problems that you might encounter and address when designing a new game ...

The sorting algorithm can be divided into internal sorting and external sorting. The internal sorting is to sort the data records in the memory, while the external sorting is because the sorting data is very large, so it can not hold all the sorting records at a time. In the sorting process, it needs to access the external memory. Common internal sorting algorithms are: Insert sort, Hill sort, Select sort, Bubble sort, Merge sort, Quick sort, Heap sort, Base sort and so on. This article will introduce the above eight sorting algorithm in turn. Algorithm 1: insert sort Insert sort diagram Insert sort is one of the most simple and intuitive sorting algorithm, it's work ...

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Since the start of the billion-euro network, often people will ask me two questions: 2 Why would venture to do a O2O media? (The implication is that the media is not a lucrative business, and O2O is not a big industry). Asked more times, Pugo has been trying to write something to unify the response, plus some time ago Pugo to the two or three-line city business trip, found that many people are still in blind worship or blind contempt of the stage. As a O2O industry media, billion European network has the responsibility to spread a voice to the outside world; just yesterday, a friend strongly advised, so Pugo intend to write a series of o ...

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Two months after the one plus press conference ended, Liu Zuhu still can not say that one plus cellphone has been successful despite the fact that the actual appointment number as of May 28 has reached 1.34 million. In his words, sales did exceed expectations, but the appointment is not equal to the actual sales, can only say that one plus has been sustaining the first threshold, the current problem to be solved is capacity, do not worry as some new brands do not sell Out of the question. Liu Zuhu is still anxious, and the first time last year, Tencent Technology, the same, the biggest concern of this Hubei Yankees or advocacy, born Liu Zuhu OPPO and large ...