//System.out.println(System.currentTimeMillis() - time);
}
public void run(List<File> files) throws Exception {
Stemmer st = new Stemmer(new PorterStemmer());
long time = System.currentTimeMillis();
for(File f : files) {
ProcessingDocument procDoc = ProcessingDocumentFactory.getInstance().makeTokenisedDocument(new Builder().build(f), false, false, false);
Set<Integer> tokSet = new HashSet<Integer>();