public void explore(Community c, List<Node> nodeList){
		if(c.getChild1() == null){
			DenseVector nodesC = c.getVertexIndexes();
			//System.out.println("community: ");
			Event event = new Event();
			for(VectorEntry ve : nodesC){
				int id = (int)ve.get();				
				event.keywords.add(nodeList.get(id).getName());
				event.setEpsylon(computeE(c));
				event.setStartDay(startDay);
				event.setEndDay(endDay);
				event.setWindow(window);
			}
			if(!events.contains(event))	{events.add(event);			
			}
		}else{
			explore(c.getChild1(),nodeList);
			explore(c.getChild2(),nodeList);
		}
	}