Smoothness penalties are efficient regularization and dimension reduction tools for functional regressions. However, for spiky functional data observed on a dense grid, the coefficient function in a ...

When estimating derivatives of regression functions from noisy data, a number of additional problems arise compared with the estimation of the regression function itself. Linear methods, such as ...

THE new I.B.M. Automatic Sequence Controlled Calculator at Harvard was recently described in Nature (158, 567; 1946). The volume now before us contains the first of a series of tables produced by the ...