Processing math: 100%
2-Ap­prox­i­ma­tion for the Min. k-En­clos­ing Ge­o­desic Disc in a Sim­ple Poly­gon
An­thony D'An­gelo
Car­leton Uni­ver­sity

I will pre­sent the al­go­rithm I am cur­rently work­ing on that uses ran­dom sam­pling and a com­bi­na­tion of poly­gon de­com­po­si­tion and k-lev­els to get a 2-ap­prox­i­ma­tion al­go­rithm for the min en­clos­ing ge­o­desic disc of k points in sim­ple poly­gons. The poly­gon has m ver­tices total, r re­flex ver­tices, and the set of points S that our k points is to be cho­sen from has size n. After O(m+(n + r)\log(r)) pre­pro­cess­ing, the run­time of the cur­rent ap­proach is O((n^{11/7}\log^2(n)+nr)\log(r)).