Comparison of parent-child algorithm and standard ranked list. A performance comparison between standard GO list from DAVID and Ontologizer output with parent-child algorithm. X and Y axis are similar to figure 3. Positive value refers to better performance by Ontologizer algorithm and negative value better performance by DAVID GO list. Percentiles and their colouring is also identical to earlier fig. 4. Here the difference, in favor of the parent-child algorithm seems small.