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2 votes
1 answer
151 views

Given an input point in $\mathbb{R}^n$, select (one of) the closest point(s) from a fixed large set of points given in advance

We are given a set $S$ of $m\gg 1$ points in $\mathbb{R}^n$. In the problem I am trying to solve, in a sequential fashion, we obtain a new point $p_r\not\in S$ at each round $r\ge 1$ and the goal is ...
6 votes
1 answer
424 views

Probability of intersecting a rectangle with random straight lines

We are given a rectangle $R$ with sides lengths $r_1$ and $r_2$, contained in a square $S$, with sides lengths $s_1=s_2\ge r_1$ and $s_2=s_1\ge r_2$. $R$ and $S$ are axis-aligned in a cartesian plane $...
1 vote
0 answers
81 views

Constructive way to optimally cover a compact subset of Euclidean space

Let, $(X,d)$ be a simply connected compact subset of $\mathbb{R}^d$ with non-empty interiorn, let $d$ denote the Euclidean metric, and let $\varepsilon>0$. Is there a way to iteratively select ...
4 votes
1 answer
1k views

Finding integer points on an N-d convex hull

Suppose we have a convex hull computed as the solution to a linear programming problem (via whatever method you want). Given this convex hull (and the inequalities that formed the convex hull) is ...