1. In Equation (6), the quotient c(R*;T)/c(R;T) should be a difference: c(R*;T)-c(R;T)

2. In Equation (14), the quotient c(R*;T)/c(R;T) should be a difference: c(R*;T)-c(R;T)

3. In Figure 13 (right), pmullw and paddw should be pmulld and paddd

4. Just prior to Equation (4) there is a citation error. The text should read:

   ... which is robust against functions that are dense with local minima [8].
   A common method (described by [X]) ...

   The citation for X was dropped from final manuscript. The bibtex is here:
   https://dblp.uni-trier.de/rec/bibtex/journals/tog/MerrellSLAK11