Despite a debate lasting some decades, there has been little or no clear resolution about the way knowledge may be related to practice. To a considerable degree this is because of an assumption that ...

"We think we can make something better or find out what is going on in this interesting area if we try a bunch of things and apply several sophisticated techniques to study this." These proposals are ...

The Annals of Statistics, Vol. 29, No. 1 (Feb., 2001), pp. 124-152 (29 pages) Suppose that one observes a process Y on the unit interval, where dY(t) = n 1/2 f(t) dt + dW(t) with an unknown function ...