Top "Topic-modeling" questions

Topic models describe the frequency of topics in documents and text.

Predicting LDA topics for new data

It looks like this question has may have been asked a few times before (here and here), but it has …

r lda topic-modeling
get_document_topics and get_term_topics in gensim

The ldamodel in gensim has the two methods: get_document_topics and get_term_topics. Despite their use in this …

python gensim topic-modeling
LDA model generates different topics everytime i train on the same corpus

I am using python gensim to train an Latent Dirichlet Allocation (LDA) model from a small corpus of 231 sentences. However, …

python nlp lda topic-modeling gensim
How to predict the topic of a new query using a trained LDA model using gensim?

I have trained a corpus for LDA topic modelling using gensim. Going through the tutorial on the gensim website (this …

python nlp lda topic-modeling gensim
What's the disadvantage of LDA for short texts?

I am trying to understand why Latent Dirichlet Allocation(LDA) performs poorly in short text environments like Twitter. I've read …

nlp lda topic-modeling
Visualizing an LDA model, using Python

I have a LDA model with the 10 most common topics in 10K documents. Now it's just an overview of the …

python data-visualization lda topic-modeling
Export pyLDAvis graphs as standalone webpage

i am analysing text with topic modelling and using Gensim and pyLDAvis for that. Would like to share the results …

python gensim lda topic-modeling
Gensim Dictionary Implementation

I was just curious about the gensim dictionary implementation. I have the following code: def build_dictionary(documents): dictionary = corpora.…

python nlp topic-modeling gensim
Text Clustering and topic extraction

I'm doing some text mining using the excellent scikit-learn module. I'm trying to cluster and classify scientific abstracts. I'm looking …

python-2.7 scikit-learn text-mining topic-modeling
Making gsub only replace entire words?

(I'm using R.) For a list of words that's called "goodwords.corpus", I am looping through the documents in a …

r gsub topic-modeling