NLP之TM之LDA：利用LDA算法瞬时掌握文档的主题内容—利用希拉里邮件数据集训练LDA模型并对新文本进行主题分类

目录

输出结果

设计思路

核心代码

训练数据集

LDA模型应用

输出结果

设计思路

核心代码

lda = gensim.models.ldamodel.LdaModel(corpus=corpus, id2word=dictionary, num_topics=20)
print('输出第10号分类：',lda.print_topic(10, topn=5))  
print('输出所有的主题分类:',lda.print_topics(num_topics=20, num_words=5))    

训练数据集

下载链接：希拉里邮件数据集

LDA模型应用

使用训练好的LDA模型，输入以下几句话，判定各自属于哪个topic

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We don’t want to shrink the vision of this country. We want to keep expanding it
We have a chance to elect a 45th president who will build on our progress, who will finish the job