if (preprocessingContext.hasLabels())
{
// Term-document matrix building and reduction
final VectorSpaceModelContext vsmContext = new VectorSpaceModelContext(
preprocessingContext);
final ReducedVectorSpaceModelContext reducedVsmContext = new ReducedVectorSpaceModelContext(
vsmContext);
matrixBuilder.buildTermDocumentMatrix(vsmContext);
matrixBuilder.buildTermPhraseMatrix(vsmContext);