Is it possible to do clustering in gensim for a given set of inputs using LDA? How can I go about it?

I am working on a project which requires me to match a phrase or keyword with a set of similar keywords. I need to perform semantic analysis for the same. an example: Relevant QT cheap health in...

I've read about using Singular Value Decomposition (SVD) to do Latent Semantic Analysis (LSA) in corpus of texts. I've understood how to do that, also I understand mathematical concepts of SVD. B...

I am using Gensim to do some large-scale topic modeling. I am having difficulty understanding how to determine predicted topics for an unseen (non-indexed) document. For example: I have 25 million ...

Is there any open source implementation of LSI in Java? I want to use that library for my project. I have seen jLSI but it implements some other model of LSI. I want a standard model.

I'm trying to follow the Wikipedia Article on latent semantic indexing in Python using the following code: documentTermMatrix = array([[ 0., 1., 0., 1., 1., 0., 1.], [ 0., 1., 1., 0., 0., 0., 0.]...

I have been working on latent semantic analysis lately. I have implemented it in java by making use of the Jama package. Here is the code: Matrix vtranspose ; a = new Matrix(termdoc); termd...

But recently I found this link quite helpful to understand the principles of LSA without too much math. http://www.puffinwarellc.com/index.php/news-and-articles/articles/33-latent-semantic-analysis...

I am sorry, if my question sounds stupid :) Can you please recommend me any pseudo code or good algo for LSI implementation in java? I am not math expert. I tried to read some articles on wikipedia...