RAMTrainingCorpus subjectiveCorpus = getCorpus(fileSubj,"subjective",creator);
RAMTrainingCorpus objectiveCorpus = getCorpus(fileObj,"objective",creator);
subjectiveCorpus.addAll(objectiveCorpus);
// filter some of the attributes out based on their LLR score
creator.keepTopNAttributesLLR(2000);
// prune terms
// creator.pruneTermsDocFreq(2,subjectiveCorpus.size());
long l0 = System.currentTimeMillis();