Latent Dirichlet Allocation

Hello guys!

For my master-thesis, I am analyzing online product reviews. My goal is to extract predefined product quality dimensions from the reviews (possible through LDA), while at the same time obtaining the valence of the text related to these product quality dimensions, which is the positivity/negativity (sentiment analysis), expressed in the reviews. I was wondering if someone on this forum has an R-script for performing this kind of analysis. I would be forever gratefull :slight_smile:

Kind regards,


There are several R packages that will help you with this. For a nice intro, I like the tidytext examples/reference


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