For the Gaussian sequence model, we obtain nonasymptotic minimax rates of estimation of the linear, quadratic and the ℓ2-norm functionals on classes of sparse vectors and construct optimal estimators ...

Unlike a linear, graph, a quadratic graph has an equation which includes an x squared term.

This guide helps CBSE Class 11 students prepare for their half-yearly Maths exam by highlighting crucial topics for Term 1. It focuses on prioritizing foundational chapters like S ...