Magazine

The Perfect Answer


Here's how the search giant tries to improve results:

1. PROBLEM

An engineer comes up with an idea for improving a set of search results, such as removing irrelevant sites or discovering new sites that cannot yet be found.

2. EXPERIMENTATION

Using a copy of the entire Web on Google's computers, a team tries out various tweaks to Google's mathematical formulas to produce more relevant results.

3. EVALUATION

Engineers send the proposed improvement to "eval," the evaluation unit, for more rigorous tests, including surveys of human raters and limited live tests on the public site. Eval suggests further improvements to the fix and creates a report on how they will affect results overall.

4. IMPLEMENTATION

The proposal is reviewed at a weekly launch meeting and, if approved, soon rolled out to all 720 million Google users.


China's Killer Profits
LIMITED-TIME OFFER SUBSCRIBE NOW
 
blog comments powered by Disqus