9000 likes

1. Alternating Least SquareALS (Alternating Least Square), alternating least squares. In machine learning, a collaborative recommendation algorithm using least squares method is specified. As shown, u represents the user, v denotes the product, the user scores the item, but not every user will rate each item. For example, user U6 did not give the product V3 scoring, we need to infer that this is the task of machine learning.Since not every user gives each product a score, it can be assumed that

requests, which means that load balancing is lost. Our solution is to write the user's login session information into the back-end of the MySQL database, this in the back of the CMS system also implemented, the effect is good; later I proposed a compromise, if nginx concurrent connection number ( That is, the nginx load Balancer's nginxstatus active connections) >2000, that is, to write the session into the MySQL database method, if the number of concurrent small, ip_hash effect is quite good.I

: > strlen users:leto (integer) > GetRange users:leto "likes: [Spice]" > Append users: Leto "Over 9000!!" (integer) 54 Now you might think, that's fine, but it doesn't seem to make any sense. You cannot effectively extract a range of JSON files, or attach some values to them. You're right, the experience here is that some commands, especially about string data structures, are meaningful only given the e

, and tossing MapReduce internal tool tutorials. It just took a week. I vaguely felt Steve's unhappiness, because he didn't talk very much, but he didn't care too much about it. He was still dumbly busy. By Friday, Steve went home very early in the afternoon. Where are the other team members. I said to her, "SteveAre you unhappy? I know that I have a little confidence in my speech and it may hurt him ." She seems to have been filled with a balloon with a hole: "How can he be hit by you? Do you k

not yet available to the general user, but we programmers can play it first!Perform mathematical operationsWhat can Jshell do? Let's start with a simple math operation, using a ready-made java.lang.Math library: Listing 1 using REPL to calculate mathematical expressions $ bash ./scripts/run.sh | Welcome to JShell -- Version 0.710| Type /help for help-> Math.sqrt( 144.0f );| Expression value is: 12.0| assigned to temporary variable $1 of type double-> $1 + 100;| Expression v

yet, but we programmers can play it first!Perform mathematical operations What can JShell do? Let's start with a simple mathematical operation.java.lang.MathLibrary: Listing 1Use REPL to calculate mathematical expressions $ bash ./scripts/run.sh | Welcome to JShell -- Version 0.710| Type /help for help-> Math.sqrt( 144.0f );| Expression value is: 12.0| assigned to temporary variable $1 of type double-> $1 + 100;| Expression value is: 112.0| assigned to temporary variable $2 of typ

are using a function that does not have an error, but in the dictionary, if it does not, it will automatically create a. As above.1>>> Dict1.fromkeys ((1,2,3))2{1: None,2: None,3: None}3>>> Dict1.fromkeys ((1,2,3),'Num')4{1:'Num',2:'Num',3:'Num'}If you use Fromkeys directly, you will get an error.1>>> Dict1=dict1.fromkeys (Range (1,9),'likes')2 Traceback (most recent):3File"", line1,inch4Dict1=dict1.fromkeys (Range (1,9),'

/q?ct=17pn=0tn=ikaslistrn=10word=fr=wwwthttp://music.baidu.com/search?fr=pskey=http://image.baidu.com/i?tn=baiduimageps=1ct=201326592lm=-1cl=2nc=1word=http://v.baidu.com/v?ct=301989888rn=20pn=0db=0s=25word=http://map.baidu.com/m?word=fr=ps01000Http://wenku.baidu.com/search?word=lm=0od=0Www.baidu.com/more/javascript:;javascript:;javascript:;http://w.x.baidu.com/go/mini/8/10000020Http://news.baidu.comHttp://www.hao123.comHttp://map.baidu.comHttp://v.baidu.comHttp://tieba.baidu.comHttps://passport.

1. Download Xdebug file http://xdebug.org/wizard.php Copy the source code of Phpinfo () to the text box, Xdebug prompts you to configure and download which version of Xdebug. Download all addresses: http://www.xdebug.org/download.php 2. Configure the php.ini and add at the end. zend_extension= "Php_xdebug-2.3.3-5.6-vc11.dll" xdebug.remote_enable = on Xdebug.remote_handler = "DBGP" xdebug.remote_host = "localhost" xdebug.remote_port = 9000

///www.baidu.com/cache/sethelp/index.htmlhttp://home.baidu.comcreate_debugger_socket("localhost", 9000) socket: Too many open filescreate_debugger_socket("localhost", 9000) socket: Too many openfilescreate_debugger_socket("localhost", 9000) socket: Too many openfilescreate_debugger_socket("localhost", 9000) socket: Too

='Peter'Perhaps you notice that the difference between the two queries above is whether distinct is used on the display field. This goes to the weight because Peter can reply to the same post more than once.Retrieving likes in a model (likes)This query is interesting: the ' likes ' side is the relationship between the member and the posting table. Each relationsh

-------------------------------------------------Datanodes available: 15 (15 total, 0 dead)----------------------Dfs used details:Found 6 items0 hdfs: // hamaster140: 9000/benchmarks125752 hdfs: // hamaster140: 9000/data00 hdfs: // hamaster140: 9000/system13721821810608 hdfs: // hamaster140: 9000/tech1803375805154 hdfs

Let's take a look at what jumbo frames is.We know that in the TCP/IP covariance cluster, the Ethernet Data Link layer communicates in frames (frame), the size of 1 frames is set to 1,518 bytes, the MTU of the traditional 10M nic frame (Maximum transmission Unit Max transmission Unit) The size is 1500 bytes (as shown in the example), the base 14 bytes are reserved to the frame header, 4 bytes are reserved to the CRC checksum, actually go to the entire TCP/IP header 40 bytes, valid data is 1460 by

1-1 Implements a simple function call. Focus on Stack-oriented applications. RET is called when a call is returned, and a number is followed to indicate the number of bytes of data into the stack during the call. 1-2 Implements code self-migration. The include statement cannot start with a file because the program starts from the first line during execution. (It may be relocated. It is unknown currently) The memory addresses marked after the move must be adjusted again. When short jump or short

Iv. Steps of the experiment 1.Shellbasic usage of variables and usage of common symbolsThis section requires writing out the shell commands that implement the requirements , showing(1) Change the main prompt to the user's home directory name( Hint: reference material 4.6.8 section Environment variables PS1 and home usage)(2) Assign the string DOS file c:>\ $student \* to the variable x and display it(Tip: Note the choice of quotation marks while ensuring that multiple spaces, $, *, and so o

Python accessing Facebook (http) CODE: #!/usr/bin/python # -*- coding: utf-8 -*-'''Created on 2014-8-6@author: guaguastd@name: http.py'''# Request over httpdef request_over_http(access_token, url, fields): # import requests import requests # Build the urls urls = '%s?fields=%saccess_token=%s' % (url, fields, access_token) print 'urls: ', urls # Get the content content = requests.get(urls, verify=False).json() # return return content #!/usr/bin/pytho

The learning path of the game programmer (Chinese version) Milo Yip• 1 days agoThank you (Tkchu) to write scripts and organize Chinese translation data, automatically generated from the English version of the Chinese version, svg/pdf version of the book is now linked to the Watercress page.Github Miloyip/game-programmerView/download Chinese version of Svg/pdf"Sincere appreciation, the hands of the remaining fragrance"appreciated15 people appreciateProgrammer's game development Books recommended

Some time ago, this article on csdn tired of programming books. To try these 3 interesting ways to improve your programming skills, see a very interesting website: http://www.codewars.com/dashboard You can do some programming exercises on it, often by completing a small method or function, and now it supports languages such as Ruby, JavaScript, and Coffeescript, which are said to support other languages later. I've done a few JavaScript exercises, and I think it's very interesting. Because here,

Insert Document: Insert () method To insert data into the MongoDB collection, you need to use the MongoDB Insert () or Save () method. Grammar: The basic syntax for the Insert () command is as follows: >db. Collection_name.insert (document) Example: >db.mycol.insert({ _id: ObjectId(7df78ad8902c), title: 'MongoDB Overview', description: 'MongoDB is no sql database', by: 'tutorials point', url: 'http://www.jb51.net', tags: ['mongodb', 'database', 'NoSQL'],

() command.Example>Db.post.insert ([{title:' MongoDB Overview ', Description:' MongoDB is no SQL database ', by:' Tutorials Point ', URL:' Http://www.yiibai.com ', Tags: [' MongoDB ', ' database ', ' NoSQL '], likes:100},{Title:' NoSQL Database ', Description:' NoSQL database doesn ' t has tables ', by:' Tutorials Point ', URL:' http://www.yiibai.com ',Tags: [' mongodb ', ' database ', ' NoSQL '], likes:20