java - Mallet topic modelling -

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i have been using mallet inferring topics text file containing 100,000 lines(around 34 mb in mallet format). need run on file containing million lines(around 180mb) , getting java.lang.outofmemory exception . there way of splitting file smaller ones , build model data present in files combined?? in advance

in bin/mallet.bat increase value line:

set mallet_memory=1g

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