Before revision: We provide  adaptive inference methods, based on l1 regularizationmethods , for regular (semi-parametric) and non-regular (nonparametric) linear functionals of the conditional expectation function.
After revision: We provide novel adaptive inference methods, based on l1 regularizationmethods , for regular (semi-parametric) and non-regular (nonparametric) linear functionals of the conditional expectation function.