I have a training data set on which I use Latent Dirichlet Allocation(LDA) to generate topics. I would like to use this model on other documents and see how similar they are to the training data. I would like to know how to go about doing this?
I was able to generate topics on the training data set. Gensim gave me a topic distribution. But how do I apply this topic distribution which is the LDA model on other documents to calculate similarity?