Mallet topic modelling

Question

I have been using mallet for inferring topics for a text file containing 100,000 lines(around 34 MB in mallet format). But now i need to run it for on a file containing a million lines(around 180MB) and I am getting an java.lang.outofmemory exception . Is there a way of splitting the file into smaller ones and build a model for the data present in all the files combined?? thanks in advance

Answer 1

In bin/mallet.bat increase value for this line:

set MALLET_MEMORY=1G

Answer 2

I'm not sure about scalability of Mallet to big data, but project http://dragon.ischool.drexel.edu/ can store its data in disk backed persistence therefore can scale to unlimited corpus sizes(with low performance of course)