Approximation algorithms for lawn mowing and milling

EM Arkin, SP Fekete, JSB Mitchell - Computational Geometry, 2000 - Elsevier
We study the problem of finding shortest tours/paths for “lawn mowing” and “milling”
problems: Given a region in the plane, and given the shape of a “cutter”(typically, a circle or …

Shortest paths and networks

JSB Mitchell - Handbook of discrete and computational …, 2017 - api.taylorfrancis.com
Handbook of DISCRETE AND COMPUTATIONAL GEOMETRY Page 1 i “K25063” — 2017/9/15
— 18:58 — page 811 — i i i 31 SHORTEST PATHS AND NETWORKS Joseph SB Mitchell …

[PDF][PDF] Geometric Shortest Paths and Network Optimization.

JSB Mitchell - Handbook of computational geometry, 2000 - Citeseer
A natural and well-studied problem in algorithmic graph theory and network optimization is
that of computing a\shortest path" between two nodes, s and t, in a graph whose edges …

[图书][B] Visibility algorithms in the plane

SK Ghosh - 2007 - books.google.com
A human observer can effortlessly identify visible portions of geometric objects present in the
environment. However, computations of visible portions of objects from a viewpoint involving …

[PDF][PDF] A compendium of NP optimization problems

P Crescenzi, V Kann, M Halldórsson - 1995 - Citeseer
Due to the fact that no NP-complete problem can be solved in polynomial time (unless P=
NP), many approximability results (both positive and negative) of NP-hard optimization …

Modeling costs of turns in route planning

S Winter - GeoInformatica, 2002 - Springer
In this paper a model that handles costs of turns in route planning is defined, investigated
and discussed. Costs are traditionally attached to edges in a graph. For some important …

Computing minimum length paths of a given homotopy class

J Hershberger, J Snoeyink - Computational geometry, 1994 - Elsevier
In this paper, we show that the universal covering space of a surface can be used to unify
previous results on computing paths in a simple polygon. We optimize a given path among …

[PDF][PDF] Many birds with one stone: Multi-objective approximation algorithms

R Ravi, MV Marathe, SS Ravi, DJ Rosenkrantz… - Proceedings of the …, 1993 - dl.acm.org
We study network-design problems with multiple design objectives. In particular, we look at
two cost measures to be minimized simultaneously: the total cost of the network and the …

[PDF][PDF] Resource-constrained geometric network optimization

EM Arkin, JSB Mitchell, G Narasimhan - Proceedings of the fourteenth …, 1998 - dl.acm.org
Consider a traveling salesperson who has a given amount of gasoline (allowing travel up to
distance B) and wants to maximize the number of sites visited before running out of …

Efficient piecewise-linear function approximation using the uniform metric: (preliminary version)

MT Goodrich - Proceedings of the tenth annual symposium on …, 1994 - dl.acm.org
We give an O (n log n)-time method for finding a best k-link piecewise-linear function
approximating an n-point planar data set using the well-known uniform metric to measure …