Ask HN: Unsupervised text classification?

1 points by gerenuk 7 years ago · 0 comments · 1 min read

Hi everyone,

We are currently using text classification model trained on a labelled data set consisting of almost 500 hierarchical categories , For example a news article is labelled as News/Business News , now what we want to do is extract sub-topics from this main category such as Stock Market , Trading News, Business Investment, Angel Investments etc . So what approach would be recommended to handle this kind of problem ?

Thanks

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