Before revision:  This is an exponential improvement over the state of the art Arriaga and Vempala, 2006 . We also improve over the super-polynomial-in-t algorithm of Klivans and Servedio 2008 , while achieving a better sample complexity.
After revision:  This is an exponential improvement over the state of the art Arriaga and Vempala, 2006 2008 , while achieving a better sample complexity.