“ …if we find for a particular query that result No. 4 should be result No. 1, we do not have the capability to manually change it. We made that decision not to put that capability in the algorithm—we have to go and actually change the algorithm. That is, we have to find what weakness in the algorithm caused that result and find a general solution to that, evaluate whether a general solution really works and if it’s better, and then launch a general solution.
20 (Rare) Questions for Google Search Guru Udi Manber - Popular Mechanics
