OverlapUpdateNormalization extends RelatedTweetUpdateNormalization { @Override public double computeScoreNormalization(double cooccurrence, int similarNodeDegree, int nodeDegree) { return 1.0; }  @Override double computeLeftNeighborContribution(int leftNodeDegree); @Override double computeScoreNormalization(double cooccurrence, int similarNodeDegree,
      int nodeDegree);  }
@Test public void testComputeScoreNormalization() { OverlapUpdateNormalization overlapUpdateNormalization = new OverlapUpdateNormalization(); assertNotNull(overlapUpdateNormalization.computeScoreNormalization(0.0, 0, 0)); assertNotEquals(0, overlapUpdateNormalization.computeScoreNormalization(0.0, 0, 0)); }