word2vec配置到使用

（1）首先下載word2vec，地址： https://code.google.com/p/word2vec/，可能下載的時候有問題，google上不去，那麼能夠從csdn上面下載。

解壓後目錄以下：

 

w2v/
`-- trunk
    |-- LICENSE
    |-- README.txt
    |-- compute-accuracy.c
    |-- demo-analogy.sh
    |-- demo-classes.sh
    |-- demo-phrase-accuracy.sh
    |-- demo-phrases.sh
    |-- demo-train-big-model-v1.sh
    |-- demo-word-accuracy.sh
    |-- demo-word.sh
    |-- distance.c
    |-- makefile
    |-- questions-phrases.txt
    |-- questions-words.txt
    |-- word-analogy.c
    |-- word2phrase.c
    `-- word2vec.c

 

（2） 進入w2c/trunk文件夾，運行make，編輯文件。從makefile中能夠看到，須要編譯的文件，主要有兩個word2vec.c和distance.c，編譯後生成word2vec和distance。可是在編譯的時候可能出現問題，參照 http://blog.csdn.net/zshunmiao/article/details/15339105，能夠對問題進行解決。

makefile內容以下：

（3）而後就能夠跑個demo了，運行./demo-word.sh。

demo-word.sh內代碼以下：

CC = gcc
#Using -Ofast instead of -O3 might result in faster code, but is supported only by newer GCC versions
CFLAGS = -lm -pthread -O3 -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

而後輸入單詞，就能夠計算其近義詞，並按照順序排列。

Enter word or sentence (EXIT to break): china       

Word: china  Position in vocabulary: 486

                                              Word       Cosine distance
------------------------------------------------------------------------
                                             japan              0.648631
                                            taiwan              0.630534
                                         manchuria              0.599535
                                             tibet              0.583566
                                               prc              0.560898
                                          kalmykia              0.558937
                                            xiamen              0.556037
                                             jiang              0.553501
                                           chinese              0.547065
                                              liao              0.543676
                                             india              0.536273
                                             korea              0.534758
                                               roc              0.530741
                                          thailand              0.529334
                                             hunan              0.527629
                                             liang              0.527374
                                          shanghai              0.526314
                                         chongqing              0.525559
                                           nanjing              0.521342
                                            yunnan              0.518669
                                             wuhan              0.516914
                                              zhao              0.513246
                                          xinjiang              0.509939
                                              tuva              0.507322
                                         guangdong              0.507288
                                             hubei              0.505540
                                           guangxi              0.501068
                                            taipei              0.497673
                                             macao              0.497303
                                            hainan              0.494808
                                          shandong              0.493323
                                          shenzhen              0.491871
                                          hangzhou              0.489323
                                            balhae              0.488846
                                         guangzhou              0.486907
                                            fujian              0.485473
                                          zhejiang              0.485011
                                            harbin              0.483171