Chapter 5 Global Fano Method
نویسنده
چکیده
In this chapter, we extend the techniques of Chapter 2.4 on Fano’s method (the local Fano method) to a more global construction. In particular, we show that, rather than constructing a local packing, choosing a scaling δ > 0, and then optimizing over this δ, it is actually, in many cases, possible to prove lower bounds on minimax error directly using packing and covering numbers (metric entropy and packing entropy). The material in this chapter is based on a paper of Yang and Barron [5].
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