CentOS下安裝word2vec的linux教程

關於google的word2vec項目，這裏就不用介紹了，接下來需要很乾貨的分享給大夥，在CentOS下安裝word2vec的linux教程。關於如何在各個linux操作系統上安裝word2vec，google的word2vec項目首頁並未過多講，或是詳細的描述安裝的linux教程。

word2vec項目的官網上，只有這麼幾段簡短的關於使用的描述和linux教程：

Quick start

Download the code: svn checkout http://word2vec.googlecode.com/svn/trunk/

Run ‘make’ to compile word2vec tool

Run the demo scripts: ./demo-word.sh and ./demo-phrases.sh

For questions about the toolkit, see http://groups.google.com/group/word2vec-toolkit

詳細的安裝word2vec項目的linux如下：

當然，如上所說，該操作是在CentOS系統下的。

1、確保gcc爲最新版

     yum install gcc

2、安裝subversion，用來獲取word2vec源碼

    yum install subversion

3、指定一個任意目錄爲word2vec工作目錄，通過svn指令獲取word2vec源碼

svn checkout http://word2vec.googlecode.com/svn/trunk/

4、使用make指令進行安裝

  make

可以發現在安裝的時候，會出現如下error:

gcc word2vec.c -o word2vec -lm -pthread -0fast -march=native -Wall -funroll-loops -Wno-unused-result

cc1: error: invalid option argument ?0fast?

cc1: warning: unrecognized command line option “-Wno-unused-result”

make: *** [word2vec] Error 1

這是因爲該系統的gcc不支持0fast選項的原因。

5、編輯makefile文件，更改gcc安裝選項

   vi ./makefile

word2vec的makefile源碼如下:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

CC = gcc #The -Ofast might not work with older versions of gcc; in thatcase,use-O2 CFLAGS = -lm -pthread -Ofast -march=native -Wall -funroll-loops -Wno-unused-result   all: word2vec word2phrase distance word-analogy compute-accuracy   word2vec : word2vec.c  $(CC) word2vec.c -o word2vec $(CFLAGS) word2phrase : word2phrase.c  $(CC) word2phrase.c -o word2phrase $(CFLAGS) distance : distance.c  $(CC) distance.c -o distance $(CFLAGS) word-analogy : word-analogy.c  $(CC) word-analogy.c -o word-analogy $(CFLAGS) compute-accuracy : compute-accuracy.c  $(CC) compute-accuracy.c -o compute-accuracy $(CFLAGS)  chmod+x *.sh   clean:  rm -rf word2vec word2phrase distance word-analogy compute-accuracy

注意觀察，第二行：

#The -0fast might not work with older versions of gcc; in that case, use -02(是0)

google的工程師這裏有寫到相關注意事項，告訴開發者，-0fast安裝選項，可能對於舊版本的gcc不支持，如果在這種情況下，需要將-0fast改爲-02

所以將第三行

CFLAGS = -lm -pthread -0fast -march=native -Wall -funroll-loops -Wno-unused-result

更改爲

CFLAGS = -lm -pthread -02-march=native -Wall -funroll-loops -Wno-unused-result

6、使用make指令安裝通過

 make

安裝通過後的內容爲：

gcc word2vec.c -o word2vec -lm -pthread -02 -march=native -Wall -funroll-loops -Wno-unused-result
gcc word2phrase.c -o word2phrase -lm -pthread -02 -march=native -Wall -funroll-loops -Wno-unused-result
gcc distance.c -o distance -lm -pthread -O2 -march=native -Wall -funroll-loops -Wno-unused-result
gcc word-analogy.c -o word-analogy -lm -pthread -02 -march=native -Wall -funroll-loops -Wno-unused-result
gcc compute-accuracy.c -o compute-accuracy -lm -pthread -02 -march=native -Wall -funroll-loops -Wno-unused-result
chmod +x *.sh

關於CentOS下安裝word2vec的linux教程介紹到此，應該沒有問題，親自嘗試後，通過。