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Spark builds a development environment in Ubuntu

-hadoop2.6: http://spark.apache.org/downloads.html  IX. Configuring environment variablesTo edit/etc/profile, execute the following command:*@*: ~$ sudo gedit/etc/profileThe file will be opened in an edited manner, with the maximum number of files added:#Seeting JDK JDK environment variable export java_home=/opt/jdk1.8. 0_45export jre_home=${java_home}/jreexport CLASSPATH=.:${java_home}/lib:${jre_home}/lib export PATH=${java_home}/bin:${jre_home}/bin:$ Path #Seeting Scala Scala environm

Easy installation of Spark under Ubuntu 14.04

Java installation first needs to download on Oracle's websiteCreate a JVM folder in the Lib directory sudo mkdir /usr/lib/jvm Then unzip the file into this folder sudo tar zxvf jdk-8u40-linux-i586.tar.gz -C /usr/lib/jvm Go to Unzip folder cd /usr/lib/jvm And then change a name for convenience.sudo mv jdk1.8.0_40 JavaOpen configuration file sudo gedit ~/.bashrc Add the following settings export JAVA_HOME=/usr/lib/jvm/java

Working log--build spark cluster based on k8s

using k8s to build spark cluster These days try to build spark cluster in k8s, trample some pit, share with everybody. Spark's component introduction can refer to official documentationA brief introduction to the large data biosphere This article is based on the k8s official example Specific reference GitHub k8s FAQ image Pull Problem This method requires access to the Gcr.io download mirror (VPN is generally required in China), it should be noted that GCR.IO/GOOGLE_CONTAINERS/SPARK:1.5.2_V1 mi

Spark 2.2.0 How to use each calculation Factor Python version __python

' sys.path.append ("/opt/spark/python") from Pyspark import Spa Rkcontext from Pyspark import sparkconf def map (): sc = sparkcontext ("spark://node0:7077", "map") list=[1,2,3,4,5] Listrdd=sc.parallelize (list) Listmap =listrdd.map (lambda s:s*2) print listmap.collect () sc.stop () def fil ter (): sc = sparkcontext ("spark://node0:7077", "filter") list = [1, 2, 3, 4, 5,6,7,8,9,10] Listrdd = Sc.parall

From Pandas to Apache Spark ' s Dataframe

From Pandas to Apache Spark ' s DataFrameAugust by Olivier Girardot Share article on Twitter Share article on LinkedIn Share article on Facebook This was a cross-post from the blog of Olivier Girardot. Olivier is a software engineer and the co-founder of Lateral Thoughts, where he works on machine learning, Big Data, and D Evops Solutions. With the introduction in Spark 1.4 of Windows operations, you can finally port pretty much any relevant piece of Pandas ' Da Taframe computation to Apache Spa

POJ C + + programming programming task-polymorphism and virtual functions

Programming Questions #3Source: POJ (Coursera statement: The exercises completed on POJ will not count against the final results of Coursera. )Note: Total time limit: 1000ms memory limit: 65536kBDescribeThe following program outputs the result:A::funA::D oA::funC::D oPlease fill in the blanks:#include InputNoOutputA::funA::D oA::funC::D oSample inputNoSample outputA::funa::D oa::func::D o #include usi

POJ C + + programming problem List

Programming Question # ListSource: POJ (Coursera statement: The exercises completed on POJ will not count against the final results of Coursera. )Note: Total time limit: 4000ms memory limit: 65536kBDescribeWrite a program to complete the following commands:New id--Create a sequence with a specified ID (idAdd ID num--adds integer num to a sequence numbered IDMerge Id1 id2--merges the number in the sequence I

Why isn't parentheses a regular language?

I/O ar problem on C time r learning Remember long ago, when looking for a question about Vim matching brackets, I saw a saying that parentheses are not regular. At that time, I did not go into details, but I just wrote down this statement. Recently, Coursera opened a course on automation and listened to it. It also said that parentheses are not regular and no proof is provided. This leads to my curiosity. Coursera

POJ C + + programming Problem # # #: Calculating the sum of squares

Programming Question # #: Calculate the sum of squaresSource: Peking University Online Program evaluation system POJ (Coursera statement: The exercises completed on POJ will not count to the final results of Coursera. )Total time limit: 1000ms memory limit: 1024kBDescribeWrite the sum function so that it can calculate the sum of squares of the input series.#include InputThe first line is an integer t (T Eac

POJ C + + programming Problem # # 3 of the sum of the low-bit of a computed array

Programming Question # #: Calculates the sum of the lower 3 bits of an arraySource: Peking University Online Program evaluation system POJ (Coursera statement: The exercises completed on POJ will not count to the final results of Coursera. )Total time limit: 1000ms memory limit: 1024kBDescribeEnter an array of positive integers a[0], a[1], a[2], ..., a[n-1], and calculate the sum of their binary low 3-bit.#

POJ C + + programming problem # 200 output

Programming Question # #: Output 200Source: Peking University Online Program evaluation system POJ (Coursera statement: The exercises completed on POJ will not count to the final results of Coursera. )Total time limit: 1000ms memory limit: 1024kBDescribeMake the following code output a result of 200.#include InputNo input required.OutputThe output result is 200.Sample inputNo input required.Sample output200

POJ C + + programming Problem # #: Calculating sum of squares of integers

Programming Question # #: Computes the sum of squares of integersSource: Peking University Online Program evaluation system POJ (Coursera statement: The exercises completed on POJ will not count to the final results of Coursera. )Total time limit: 1000ms memory limit: 1024kBDescribeThe following program reads an integer n each time, and exits if n is 0, otherwise outputs N and N squared.#include InputA k in

POJ C + + Programming programming Jobs-class and Object programming Question # #

Programming Question # # #Source: POJ (Coursera statement: The exercises completed on POJ will not count against the final results of Coursera. )Note: Total time limit: 1000ms memory limit: 65536kBDescribeThe output of the following program is:5,55,5Please fill in the blanks:#include InputNoOutput5,55,5Sample inputNoSample output5,55,5TipsThe missing code has the following form: Big ________________{}

A tentative study of programming job-c++ simple implementation of Student information processing program

Simple implementation of Student information processing programSource: POJ (Coursera statement: The exercises completed on POJ will not count against the final results of Coursera. )Note: Total time limit: 1000ms memory limit: 65536kBDescribeIn a Student information processing program, it is required to implement a class that represents a student, and all member variables should be private.(Note: The evalua

Why is there almost no computer course on MOOC that is taught in C language?

Mooc of learning? The majority of the courses completed are less than the single-digit percentage of the number of elective classes. Coursera Data Science certificate sold a hundred thousand of (with the impression that the data might be wrong), and finally finished capstone project with just over 500 people. Moreover, most of those who have finished have a computer science background, and the 0 base is rare. This is still the result of teaching Pyt

How to get started deep learning?

Ng's machine learning courses on Coursera are the best choice for getting started. In addition, Yaser Abu-mostafa's machine learning program is more focused on theory, but also suitable for beginners. Learning deep learning does not require mastering machine learning, but it can be helpful if you have some understanding. In addition, Learning Classic machine learning, not just deep learning, can give us a deep theoretical background ———— because deep

"Reprint" How to self-study deep learning technology, great God Yann LeCun Pro-Grant Advice

Editor's note: Quora on the question: self-study machine learning technology, what advice do you have? (What is your recommendations for self-studying machine learning), Yann LeCun The answer under the question. This article by Lei Feng Net (public number: Lei Feng net) according to LeCun's reply collation, the original link: http://www.leiphone.com/news/201611/cWf2B23wdy6XLa21.htmlThere are a lot of materials, tutorials, and video courses on the Web for machine learning, including some universi

Bayesian statistical regularization of "CS229-LECTURE11"

Knowledge points in this section: Bayesian Statistics and Normalization Online learning How to use machine learning algorithms to solve specific problems: setting up diagnostic methods to quickly identify problems Bayesian statistics and normalization (methods to prevent overfitting) is to find better estimation methods to reduce the occurrence of over-fitting conditions.In retrospect, the estimation method used in linear regression is least squares, and logistic regres

Deep learning Reading List

This article is from: Http://jmozah.github.io/links/Following is a growing list of some of the materials I found on the web for deep Learni ng Beginners. Free Online Books Deep learning by Yoshua Bengio, Ian Goodfellow and Aaron Courville Neural Networks and deep learning by Michael Nielsen Deep Learning by Microsoft Deep learning Tutorial by LISA Lab, University of Montreal Courses Machine learning by Andrew Ng in Coursera

Simple implementation of Student information processing program

Source: POJ (Coursera statement: The exercises completed on POJ will not count against the final results of Coursera. )Note: Total time limit: 1000ms memory limit: 65536kBDescribeIn a Student information processing program, it is required to implement a class that represents a student, and all member variables should be private.(Note: The evaluation system cannot automatically determine whether a variable i

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