Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
How many documents are generally required to produce good results for latent semantic indexing? By good results I mean relevant results are given for queries
This depends a lot on the specific application and the size of the vocabulary. It is reasonable to expect LSI to be good with 100,000 documents. But it can improve when you have millions of documents.
Required, but never shown