update

Author: haibaoY

Part2_Text_Classify/src/get_data.py renamed to Part2_Text_Classify/src/get_cls.py

@@ -17,42 +17,45 @@
 reload(sys)
 sys.setdefaultencoding("utf-8")
 
-base_path = "C:/Users/kaifun/Desktop/ass_TIP/TextInfoExp/Part2_Text_Classify/data_valid/"
-filelist = os.listdir(base_path)
+# base_path = "C:/Users/kaifun/Desktop/ass_TIP/TextInfoExp/Part2_Text_Classify/data_valid/"
+base_path = '/home/kaifun/PycharmProjects/TextInfoExp/Part2_Text_Classify/'
 
 
-# 将文本汇总成一个txt
-def get_text():
+def data_preprocess():
+    cls = ['Art', 'Computer', 'Sports']
+    for item in cls:
+        get_text(item)
+
+
+# 将各类文本汇总成一个txt
+def get_text(item):
+    filelist = os.listdir(base_path + 'data_train/' + item)
     data_dict = {}
     for files in filelist:
         # print (files)
-        f = open(base_path + files, 'r')
-        text = (f.read().decode('GB2312', 'ignore').encode('utf-8')).replace('\n', '')
-
+        f = open(base_path + 'data_train/' + item + '/' + files, 'r')
+        text = f.read().replace('\n', '')
         data_temp = text.decode('utf-8')  # 转换为unicode编码形式
         data = ''.join(re.findall(u'[\u4e00-\u9fff]+', data_temp))  # 必须为unicode类型，取出所有中文字符
-        data2 = jieba.cut(data)  # 分词
+        data2 = jieba.cut(data.encode('utf-8'))  # 分词
         data3 = " ".join(data2)  # 结果转换为字符串（列表转换为字符串）
-        data_dict[data3] = "Art"
+        data_dict[data3] = item
 
-    f2 = open('../data/art_res2.txt', 'a+')
+    f2 = open('%s.txt' % item, 'a+')
     for (k, v) in data_dict.items():
         f2.write(v + ',' + k + ' ' + '\n')
     f2.close()
 
 
 # 获取数据和标记
 def load_data():
-    data = pd.read_table('C:/Users/kaifun/Desktop/ass_TIP/TextInfoExp/Part2_Text_Classify/data/art_res2.txt',
-                         header=None, sep=',')
-    data2 = pd.read_table('C:/Users/kaifun/Desktop/ass_TIP/TextInfoExp/Part2_Text_Classify/data/computer_res2.txt',
-                          header=None, sep=',')
-    data3 = pd.read_table('C:/Users/kaifun/Desktop/ass_TIP/TextInfoExp/Part2_Text_Classify/data/sports_res2.txt',
-                          header=None, sep=',')
+    data = pd.read_table('Art.txt', header=None, sep=',')
+    data2 = pd.read_table('Computer.txt', header=None, sep=',')
+    data3 = pd.read_table('Sports.txt', header=None, sep=',')
     # print (data,data2,data3)
 
     posting_list = []
-    class_list = []
+    class_list = [] # 方便计算转换为1,2,3
 
     for i in range(len(data)):
         posting_list.append((data.iloc[i, 1]))
@@ -71,14 +74,16 @@ def load_data():
 def jieba_tokenizer(x): return jieba.cut(x, cut_all=True)
 
 
+# 将文件名进行脱敏化处理
 def trans_text():
     # salt = ''.join(random.sample(string.ascii_letters + string.digits, 8))
     f3 = open('id2class2.txt', 'a')
+    filelist = os.listdir(base_path)
     for files in filelist:
         # print (files)
         f = open(base_path + files, 'r')
         text = (f.read().decode('GB2312', 'ignore').encode('utf-8'))
-        salt = ''.join(random.sample(string.ascii_letters + string.digits, 8)) # 产生随机数
+        salt = ''.join(random.sample(string.ascii_letters + string.digits, 8))  # 产生随机数
         f2 = open("C:/Users/kaifun/Desktop/ass_TIP/TextInfoExp/Part2_Text_Classify/test3/" + salt + '.txt', 'w')
         f2.write(text)
         f3.write(salt + ' ' + 'e' + '\n')
@@ -89,25 +94,26 @@ def trans_text():
 def get_classify():
     X_train, Y_train = load_data()
 
+    # 定义分类器
     classifier = Pipeline([
-        ('counter', CountVectorizer(tokenizer=jieba_tokenizer)),
-        ('tfidf', TfidfTransformer()),
-        ('clf', OneVsRestClassifier(LinearSVC())),
+        ('counter', CountVectorizer(tokenizer=jieba_tokenizer)),  # 标记和计数，提取特征用 向量化
+        ('tfidf', TfidfTransformer()),                            # IF-IDF 权重
+        ('clf', OneVsRestClassifier(LinearSVC())),                # 1-rest 多分类(多标签)
     ])
     mlb = MultiLabelBinarizer()
-    Y_train = mlb.fit_transform(Y_train)
+    Y_train = mlb.fit_transform(Y_train)                          # 分类号数值化
 
     classifier.fit(X_train, Y_train)
 
     # X_test = ["数据分析"]
     # 把所有的测试文本存到一个list中
     test_list = []
     test_name = []
-    filelist2 = os.listdir("C:/Users/kaifun/Desktop/ass_TIP/TextInfoExp/Part2_Text_Classify/data_test/")
+    filelist2 = os.listdir(base_path + "data_test/")
     for files in filelist2:
         # print (files)
         test_name.append(files)
-        f = open("C:/Users/kaifun/Desktop/ass_TIP/TextInfoExp/Part2_Text_Classify/data_test/" + files, 'r')
+        f = open(base_path + "data_test/" + files, 'r')
         test_list.append(f.read())
 
     prediction = classifier.predict(test_list)
@@ -123,29 +129,6 @@ def get_classify():
     print ((num_dict[('1',)] + num_dict[('2',)] + num_dict[('3',)]) / float(len(result)))  # 整数除整数为0，应把其中一个改为浮点数。
 
 
-def get_text2():
-    for files in filelist:
-        f = open(base_path + files, 'r')
-        data = f.read()
-        f2 = open("C:/Users/kaifun/Desktop/ass_TIP/TextInfoExp/Part2_Text_Classify/test/" + files + '.txt', 'w')
-        f2.write(data)
-
-
-def check():
-    filename = []
-    print (filelist)
-    data = pd.read_table('C:/Users/kaifun/Desktop/ass_TIP/TextInfoExp/Part2_Text_Classify/src/result.txt', header=None,
-                         sep='\t')
-
-    for i in range(len(data)):
-         filename.append(str(data.iloc[i,0]).split()[0])
-
-    print (filename)
-
-
 if __name__ == '__main__':
-    # get_text()
-    # trans_text()
+    # data_preprocess()
     get_classify()
-    # get_text2()
-    # check()