Code for text mining through Bayes Classifier?

Question

Vineet 2013-4-24

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/73367-code-for-text-mining-through-bayes-classifier

回答： Christopher Creutzig 2018-11-26

I am looking for an example of text mining problem through Bayes Classifier. The problem under consideration is analyzing news text for stock market prediction.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Sarah Palfreyman 2018-4-30

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/73367-code-for-text-mining-through-bayes-classifier#answer_318000

See Text Analytics Toolbox

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

Answer 2

Christopher Creutzig 2018-11-26

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/73367-code-for-text-mining-through-bayes-classifier#answer_348912

MathWorks has examples like this one using classifiers from the Statistics and Machine Learning Toolbox to work on text data. The main problem with converting this to using a naïve Bayes algorithm is that fitcnb is not optimized to work with high-dimensional sparse data, such as a basic word count.

To alleviate that problem, use a dimensionality reduction step, such as fitlsa.