带转向费用的最优覆盖旅行
Optimal Covering Tours with Turn Costs
摘要:
我们给出了第一个算法研究的一类“覆盖旅游”的问题有关的几何旅行推销员问题:找到一个多边形旅游的刀具,使它扫出一个指定的区域(“口袋”),以尽量减少成本,主要取决于EM回合的数量。这些问题自然出现在计算几何在自动刀具路径生成和自动检测系统的制造应用中,以及具有转弯惩罚的圆弧布线(“邮递员”)问题中。我们证明了NP-完全的最小车削铣削,并给出了有效的近似算法的几个自然版本的问题,包括一个多项式时间的近似计划的基础上,一个新的适应的m-截断法。
英文摘要:
We give the first algorithmic study of a class of ``covering tour'' problems related to the geometric Traveling Salesman Problem: Find a polygonal tour for a cutter so that it sweeps out a specified region (``pocket''), in order to minimize a cost that depends mainly on the number of em turns. These problems arise naturally in manufacturing applications of computational geometry to automatic tool path generation and automatic inspection systems, as well as arc routing (``postman'') problems with turn penalties. We prove the NP-completeness of minimum-turn milling and give efficient approximation algorithms for several natural versions of the problem, including a polynomial-time approximation scheme based on a novel adaptation of the m-guillotine method.
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