The parametric model probability estimation has a known global distribution form,i.e.function form. But in fact,we know nothing about distribution. The non-parametric model can be applied to any case of probability distribution without assuming that the form of probability distribution is known. 4/45▶ The parametric model probability estimation has a known global distribution form, i.e. function form. ▶ But in fact, we know nothing about distribution. ▶ The non-parametric model can be applied to any case of probability distribution without assuming that the form of probability distribution is known. 4 / 45