# Point Location and Active Learning: Learning Halfspaces Almost Optimally

FOCS, pp. 1034-1044, 2020.

EI

Abstract:

Given a finite set $X \subset \mathbb{R}^d$ and a binary linear classifier $c: \mathbb{R}^d \to \{0,1\}$, how many queries of the form $c(x)$ are required to learn the label of every point in $X$? Known as \textit{point location}, this problem has inspired over 35 years of research in the pursuit of an optimal algorithm. Building on the...More

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