More On How Google Uses Machine Learning In Google Search

This past Friday, I asked John Mueller of Google a bit more on if and how Google may use machine learning for adjusting the weights of various ranking signals. The short answer is, Google may or may not do this, depending on the specific ranking signal. But keep in mind, I narrowed the question specifically to if and how Google may use machine learning for adjusting the weights of individual ranking signals. It may be also the case machine learning is used amongst multiple ranking signals or to maybe even create new ones based on the query. It is hard to know for sure.