Chakaravarthy, Venkatesan T. ;
Pal, Arindam ;
Roy, Sambuddha ;
Sabharwal, Yogish
Scheduling Resources for Executing a Partial Set of Jobs
Abstract
In this paper, we consider the problem of choosing a minimum cost set of resources for executing a specified set of jobs. Each input job is an interval, determined by its starttime and endtime. Each resource is also an interval determined by its starttime and endtime; moreover, every resource has a capacity and a cost associated with it. We consider two versions of this problem.
In the partial covering version, we are also given as input a number k, specifying the number of jobs that must be performed. The goal is to choose $k$ jobs and find a minimum cost set of resources to perform the chosen k jobs (at any point of time the capacity of the chosen set of resources should be sufficient to execute the jobs active at that time). We present an O(log n)factor approximation algorithm for this problem.
We also consider the prize collecting version, wherein every job also has a penalty associated with it. The feasible solution consists of a subset of the jobs, and a set of resources, to perform the chosen subset of jobs. The goal is to find a feasible solution that minimizes the sum of the costs of the selected resources and the penalties of the jobs that are not selected. We present a constant factor approximation algorithm for this problem.
BibTeX  Entry
@InProceedings{chakaravarthy_et_al:LIPIcs:2012:3859,
author = {Venkatesan T. Chakaravarthy and Arindam Pal and Sambuddha Roy and Yogish Sabharwal},
title = {{Scheduling Resources for Executing a Partial Set of Jobs}},
booktitle = {IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2012) },
pages = {199210},
series = {Leibniz International Proceedings in Informatics (LIPIcs)},
ISBN = {9783939897477},
ISSN = {18688969},
year = {2012},
volume = {18},
editor = {Deepak D'Souza and Telikepalli Kavitha and Jaikumar Radhakrishnan},
publisher = {Schloss DagstuhlLeibnizZentrum fuer Informatik},
address = {Dagstuhl, Germany},
URL = {http://drops.dagstuhl.de/opus/volltexte/2012/3859},
URN = {urn:nbn:de:0030drops38598},
doi = {10.4230/LIPIcs.FSTTCS.2012.199},
annote = {Keywords: Approximation Algorithms, Partial Covering, Interval Graphs}
}
2012
Keywords: 

Approximation Algorithms, Partial Covering, Interval Graphs 
Seminar: 

IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2012)

Issue date: 

2012 
Date of publication: 

2012 