1. Randomized Response: a new RAPPOR-like mechanism for private histogram
computation that has better utility and smaller message size than RAPPOR for
"large" epsilon. 2. Generalized Local Differential Privacy: a generalization of
local differential privacy that allows the privacy level to vary across the
alphabet. The generalization allows system designers to put privacy where it
matters without paying the cost where it doesn't, admitting an elegant unification
of local differential privacy with the classic Warner 1965 mechanism.