论文标题
一般群集路由问题的近似算法
Approximation algorithms for general cluster routing problem
论文作者
论文摘要
由于其无处不在和广泛的应用,在运营研究,计算机科学和工程中已经广泛研究了图形路由问题。在本文中,我们研究了常规近似算法,以解决一般群集路由问题的某些变化。在这个问题中,我们将为我们提供一个edge的完整的无向图$ g =(v,e,c),其顶点集的$被分配到簇中$ c_ {1},\ dots,c_ {k {k}。目的是找到最低成本的步行$ t $,仅一次访问$ v'$的每个顶点,至少一次,每一个$ i \ in [k] $ in [k] $ in $ c_i $的所有$ i \ in travers travers $ e'$中的每个边缘都会连续遍历。
Graph routing problems have been investigated extensively in operations research, computer science and engineering due to their ubiquity and vast applications. In this paper, we study constant approximation algorithms for some variations of the general cluster routing problem. In this problem, we are given an edge-weighted complete undirected graph $G=(V,E,c),$ whose vertex set is partitioned into clusters $C_{1},\dots ,C_{k}.$ We are also given a subset $V'$ of $V$ and a subset $E'$ of $E.$ The weight function $c$ satisfies the triangle inequality. The goal is to find a minimum cost walk $T$ that visits each vertex in $V'$ only once, traverses every edge in $E'$ at least once and for every $i\in [k]$ all vertices of $C_i$ are traversed consecutively.