采用python编写的使用机器学习方法对旅游文本数据进行分析，部分代码如下：
import pandas as pd
import matplotlib.pyplot as plt
from sklearn import svm
import jieba
from sklearn.model_selection import train_test_split
from sklearn.model_selection import StratifiedKFold
from sklearn.feature_extraction.text import CountVectorizer,TfidfVectorizer
from sklearn.model_selection import GridSearchCV
from sklearn.naive_bayes import MultinomialNB
from sklearn.model_selection import cross_val_score
from sklearn.decomposition import PCA
from s
